{"title":"MerCruiser Spark Plug Wire Kits","description":"","products":[{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-mcm-496-mag-ho-and-mie-8-1l-ho-84-8m0117678","title":"Mercury Mercruiser - Spark Plug Wire Kit - Fits MCM 496 Mag \u0026 HO and MIE 8.1L \u0026 HO - 84-8M0117678","description":"\u003cp\u003eFits MCM 496 Mag \u0026amp; HO and MIE 8.1L \u0026amp; HO (2000 and newer). Individual spark plug wires are also available separately. Use 84-888740 for cylinder 1, 2, 7 \u0026amp; 8. Use 84-888741 for cylinder 3, 4, 5 \u0026amp; 6.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936002396451,"sku":"84-8M0117678","price":567.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0117678.png?v=1698795722"},{"product_id":"mercury-mercruiser-spark-plug-wire-set-fits-mcm-4-5l-mpi-84-8m0095475","title":"Mercury Mercruiser - Spark Plug Wire Set - Fits MCM 4.5L MPI - 84-8M0095475","description":"\u003cp\u003eFits MCM 4.5L MPI.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936006066467,"sku":"84-8M0095475","price":110.42,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m0095475.png?v=1698795736"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-mcm-mie-8-2l-engines-84-899329a09","title":"Mercury – Spark Plug Wire Kit | Ignition Wire Set | Marine-Grade Construction | 899329A09","description":"\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Spark Plug Wire Kit | Ignition Wire Set | Marine-Grade Construction | 899329A09\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e There’s a certain comfort that comes from knowing your big-block MerCruiser fires strong every time you turn the key. With an engine as powerful as the 8.2L, you can feel instantly when the ignition system is healthy — the smooth startup, the steady idle, the way the boat responds the moment you bring the throttle forward. The Quicksilver 899329A09 Spark Plug Wire Kit keeps that confidence alive. It’s built for engines that work hard, whether you’re loaded down for a weekend run, cruising a long stretch of lake, or pulling your crew on a wakeboard. Good spark means good power, and this kit keeps it flowing clean.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eComplete set of \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e8 red spark plug wires\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePre-formed boots for precise fit at the plug end\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTailored wire lengths ensure correct routing on 8.2L MerCruiser engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered for durability in high-heat marine engine compartments\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for long-term ignition efficiency and consistent spark delivery\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eFits \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e8.2L MerCruiser sterndrive and inboard engines (2010 and newer)\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eWorks with:\u003c\/span\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBravo sterndrive-powered sport boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLarge bowriders and deck boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance cruisers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCabin cruisers and weekenders\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with ignition systems requiring OEM spark plug wire sets\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Ignition wires seem simple, but in a marine engine bay they’re under constant stress — heat buildup, vibration, moisture, and tight routing all take a toll. Over time, wires can break down internally or begin leaking voltage, which leads to misfires, sluggish acceleration, and reduced fuel efficiency. The Quicksilver 899329A09 kit solves those problems with wires engineered specifically for your 8.2L engine’s layout.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEach wire is cut to the exact length Mercury designed for the engine. This matters more than most boaters realize — correct length reduces stress at connection points, prevents rubbing or chafing, and ensures each wire reaches the plug cleanly without looping or stretching. The boots grip firmly, holding their seal even through the vibration of rough water or long, high-RPM runs.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eInside each wire, high-quality insulation and core materials help maintain a strong, stable spark across all eight cylinders. That translates directly into smoother idle, stronger hole shot, and more reliable performance under load. When towing, cruising, or maneuvering at the dock, the engine feels responsive and balanced — exactly how a big-block MerCruiser should feel.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBecause these wires are made for the marine environment, they resist moisture intrusion, thermal cracking, and corrosion far better than automotive-style wires. That durability means fewer ignition-related surprises and a longer service life.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e When it comes to ignition systems, fit and reliability matter more than anything. A\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eftermarket wires may be cheaper, but they often use lower-grade insulation, inconsistent wire cores, or generic lengths that don’t match Mercury’s routing. That can lead to premature wear, poor spark quality, or misfires that mimic larger engine problems. OEM Quicksilver wires are engineered for the exact heat load, routing angles, and performance expectations of the 8.2L MerCruiser. T\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ehey fit right, last longer, and keep your engine performing the way it was designed.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does this wire kit fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits 8.2L MerCruiser sterndrive and inboard engines, model year 2010 and newer.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: Are the wires marine-rated?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes — they’re designed for heat, moisture, and vibration found in real marine conditions.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm this is the correct kit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match your engine model and year to part number 899329A09 or verify in the owner’s manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Do the wires come pre-cut to length?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. Each wire is sized to reach the correct plug location cleanly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Can these wires improve engine performance?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Fresh OEM wires can reduce misfires, smooth idle, and improve spark consistency.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936022745379,"sku":"84-899329A09","price":105.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/899329a09_main.jpg?v=1760631298"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-blue-fits-gm-v-6-262-cid-engines-with-thunderbolt-iv-ignition-84-863656a04","title":"Mercury Mercruiser - Spark Plug Wire Kit - Blue - Fits GM V-6 262 CID Engines with Thunderbolt IV Ignition - 84-863656A04","description":"\u003cp\u003eFits GM V-6 262 cid engines with Thunderbolt IV ignition (2004-2015). Blue wires.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936050204963,"sku":"84-863656A04","price":89.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/863656a04.jpg?v=1698795948"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-2001-2015-mcm-mie-5-0l-5-7l-6-2l-mpi-engines-with-ecm-555-84-863656a1","title":"Mercury – Spark Plug Wire Kit | Ignition System | Marine-Grade Construction | 863656A1","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Spark Plug Wire Kit | Ignition System | Marine-Grade Construction | 863656A1\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Every boater knows the small things matter most when you are out on the water. A strong ignition system is not flashy, but when it is right, you feel it instantly—your engine fires with confidence, the idle smooths out, and everything just settles into that familiar rhythm you trust. That is the comfort this Mercury Marine spark plug wire kit brings back. Whether you are easing out of the marina at dawn or throttling up for \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ea long\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e cruise, it is reassuring to know the spark reaching each cylinder is clean, consistent, and exactly where it needs to be.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eComplete spark plug wire set designed for proper ignition performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFitted with molded boots at the spark plug end for a secure connection\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTailored wire lengths for accurate routing and correct plug reach\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMarine-grade insulation built for heat, vibration, and moisture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered for endurance, efficiency, and reliable spark delivery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMatches Mercury Marine’s original equipment specifications\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits V8 MerCruiser sterndrive and inboard engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for 5.0L, 5.7L, and 6.2L MPI engines equipped with ECM 555\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible within serial number range 0M300000–2A455878\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCommon in runabouts, cabin cruisers, wake boats, sport boats, and multipurpose family boats\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e A \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003egood\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e ignition system does more than keep the engine running—it sets the tone for the whole day. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWith this Mercury Marine part, you will \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efeel\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the engine respond more \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ecleanly\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, especially at low idle and during \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efast\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e throttle transitions.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEach wire seats tightly, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003egiving you that\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e reassuring “click” that \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etells you\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the connection is \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eright\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Once installed, the engine runs with a steadier pulse, the throttle feels smoother, and the boat behaves more predictably when \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eyou push it\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e under load.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe marine-grade insulation is thick and confidence-inspiring. It \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis built\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to resist the heat of a compact engine compartment, the constant vibration of long days on the water, and the ever-present moisture that sneaks into any bilge. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThese wires \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003estay\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e flexible \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ebut\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e firm, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eholding\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e shape during routing while resisting wear over time.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Installation feels straightforward and intuitive because the lengths and boot angles \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewere designed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for these exact engines—not something approximated to “fit most.”\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIn real use, that precision translates into fewer misfires, cleaner combustion, and a more reliable experience every time you head out.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e If you have been boating long enough, you already know ignition parts are not where you want to gamble. With genuine Mercury Marine components, you get:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003ePerfect fitment \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003edesigned specifically\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for your engine model\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMaterials tested for marine heat, moisture, and vibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eMore reliable spark output than \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ecommon\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e aftermarket sets\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLonger service life and fewer ignition-related issues\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eConfidence that the part will perform right the first time you turn the key\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eChoosing OEM is not about spending more—it is about avoiding the problems that come with chasing electrical gremlins later.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the Spark Plug Wire Kit 863656A1 fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits V8 MerCruiser 5.0L, 5.7L, and 6.2L MPI engines using ECM 555.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: How is this different from aftermarket wire kits?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e The lengths, boots, and internal construction are engineered specifically for these engines, ensuring better fit and a cleaner, more consistent spark.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How can I confirm this is the correct kit for my setup?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCheck your serial number (0M300000–2A455878) or compare \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eyour\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e engine model \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ewith\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e your manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can I use this in saltwater and freshwater environments?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes, the marine-grade insulation \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis built\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for both.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation easy for most owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. As long as you follow the firing order and route wires properly, the process is \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esimple and straightforward\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936050237731,"sku":"84-863656A1","price":136.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/863656a1_main.jpg?v=1760631265"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-mcm-4-3l-mpi-84-863656a2","title":"Mercury – Spark Plug Wire Kit | Ignition System | Marine-Grade Construction | 863656A2","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Spark Plug Wire Kit | Ignition System | Marine-Grade Construction | 863656A2\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere is something reassuring\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e about turning the key and hearing your engine catch instantly, settling into that smooth, familiar rhythm you trust. When your ignition system \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis dialed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e in, the whole boat feels more alive—responsive, steady, and ready for whatever kind of day you have planned on the water. That is the kind of confidence this Mercury Marine spark plug wire kit brings back to your 4.3L engine. It is the sort of part you do not think about often, but when it starts to weaken, you feel the difference immediately. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWith this kit installed, you will feel that spark energy return, crisp and clean like it should be.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eComplete spark plug wire set crafted for proper ignition performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMolded boots at the spark plug end for a tight, secure fit\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCorrect wire lengths tailored specifically for 4.3L routing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMarine-grade insulation built to withstand heat, vibration, and moisture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for endurance and consistent spark delivery in a marine environment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMeets Mercury Marine original equipment quality standards\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eDesigned specifically\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for 4.3L MPI MerCruiser sterndrive engines\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for runabouts, bowriders, mid-sized cruisers, ski boats, and family sport boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits boats relying on 4.3L engines for towing power, cruising speed, or all-day recreational use\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Ignition issues can creep up slowly—maybe a rougher idle, a hesitation during acceleration, or an occasional stumble when shifting under load. Swapping in this Mercury Marine part brings things back into focus. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe engine breathes cleaner, responds faster, and runs with a steadier, more confident pulse. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEach wire clicks firmly into place, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003egiving that\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e satisfying “locked-in” feel that \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etells you\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e everything is seated correctly.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOut on the water, the difference \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eshows up\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e in the way the engine \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eholds\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e power during \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003elong\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e runs and how smoothly it transitions when you throttle up to pull a rider or settle back into a slow cruise.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe marine-grade insulation \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003estands up to\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the constant heat radiating \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eoff\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the block and the moisture that always finds its way \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003earound\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e the engine compartment.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThese wires do not soften, crack, or loosen easily—they \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ekeep\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e their shape and integrity through constant movement and \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003elong seasons of\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e use.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe result is \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esimple \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ebut\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e noticeable\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e: \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ebetter\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e ignition stability, \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003elonger\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e spark plug life, and more predictable engine behavior.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e And when you spend enough weekends on the water, you learn how much that steadiness matters.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e If you have ever tried to chase down an ignition problem, you know why this matters. Genuine Mercury Marine components give you:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003ePrecise fitment matched \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eexactly\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to your 4.3L engine\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMaterials built specifically for marine heat and vibration\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMore reliable spark than many aftermarket alternatives\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLonger service life and fewer misfire-related issues\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA straightforward installation with wire lengths that make sense\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen your engine depends on a clean spark to perform, going OEM is simply the practical choice.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the Spark Plug Wire Kit 863656A2 fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis designed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for 4.3L MPI MerCruiser sterndrive engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: How is this kit different from aftermarket options?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Mercury wires have exact-fit lengths, tight-sealing boots, and marine-specific insulation that withstands heat and moisture better than most universal sets.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How can I confirm this kit fits my boat?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match your engine model to your owner’s manual or confirm you have a 4.3L MPI MerCruiser.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can this kit be used in saltwater and freshwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes, the insulation and materials \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eare built\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for all marine environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation easy for most boat owners?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt is very manageable—\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003ejust\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e replace one wire at a time and follow the firing order.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936050270499,"sku":"84-863656A2","price":131.37,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/863656a2_main.jpg?v=1760631267"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-black-scorpion-tow-sports-mx-6-2l-84-863656a03","title":"Mercury – Spark Plug Wire Kit | Ignition System | Marine-Grade Construction | 863656A03","description":"\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Spark Plug Wire Kit | Ignition System | Marine-Grade Construction | 863656A03\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere is something reassuring\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e about turning the key and hearing your engine fire cleanly on the first crank. When you spend your weekends around tow boats, wake boats, and other vessels built to haul friends and gear across the water, you learn quickly that ignition quality is everything. A good set of spark plug wires does more than carry current—they set the tone for every ride. This Mercury Marine part brings back that reliable snap you can feel, the kind that makes you trust your \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eengine\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e whether you are pulling a rider out of the hole or cruising across a glassy lake at sunrise.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eComplete spark plug wire kit with molded boots at the plug end\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMarine-grade wire construction designed for heat, vibration, and moisture\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eProper wire lengths tailored specifically for Black Scorpion V8 and MX 6.2L engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered for strong, consistent spark delivery\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned to maintain correct firing order and smooth ignition timing\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to Mercury Marine’s original equipment specifications\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFits V8 MerCruiser Black Scorpion engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with MX 6.2L Black Scorpion Tow Sports engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for engines within serial range 0M391599–2A460164\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eCommon\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e on ski boats, wake boats, tow-sports models, runabouts, and performance inboard setups\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e On the water, ignition issues do not creep up gradually—they hit fast, usually at the worst possible moment. Swapping in this genuine Mercury spark plug wire kit restores that clean, steady ignition tone you want to hear every time the engine comes to life. You will notice the difference right away: the idle settles into a quiet, predictable rhythm, throttle response feels quicker, and the engine pulls more smoothly under load.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe boots seat tightly around the plugs, giving you that reassuring “locked-in” feel. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe wires bend where they should, stay \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eput\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e under vibration, and do not \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003efight you\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e during routing.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOnce installed, they \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003esimply\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e disappear into the engine—no drama, no loose connections, no mixed lengths that force you to stretch or pinch a wire to make it fit.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe marine-grade insulation is thick and confident in your hands, built to \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eshrug off\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e heat from the manifolds, moisture from the bilge, and the constant shaking that comes with \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etow-sports\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e running.\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e These wires \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eare designed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for real-world use, not showroom simplicity, and that shows every time you fire up the engine after a long day on the water.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBoaters who have been around a while know that ignition components are not worth cutting corners on. With OEM Mercury Marine parts, you get:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe correct length for every wire, guaranteed\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eConsistent spark output engineered for your specific engine\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBetter durability than most aftermarket options\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReduced risk of misfires and electrical noise\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA part designed to fit right the first time, without improvisation\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen you choose genuine Mercury Marine quality, you are choosing long-term reliability, fewer troubleshooting headaches, and a better-running engine overall.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the Spark Plug Wire Kit 863656A03 fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits V8 MerCruiser Black Scorpion and MX 6.2L Black Scorpion Tow Sports engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes this kit better than aftermarket wires?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e The lengths, boots, and internal construction are engineered specifically for these engines, ensuring proper fit and a consistent, strong spark.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How can I confirm this is the right kit for my boat?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match your engine model and serial range (0M391599–2A460164) with your owner’s manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Is this kit suited for both saltwater and freshwater environments?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes—its marine-grade insulation is designed for reliable performance in either environment.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Absolutely. If you can follow the firing order and route wires cleanly, installation is simple for most owners.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936050401571,"sku":"84-863656A03","price":131.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/863656a03_02.jpg?v=1761577414"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-blue-fits-gm-v-8-305-350-cid-engines-with-thunderbolt-iv-v-ignition-84-863656a05","title":"Mercury Mercruiser - Spark Plug Wire Kit - Blue - Fits GM V-8 305\/350 CID Engines with Thunderbolt IV \u0026 V Ignition - 84-863656A05","description":"\u003cp\u003eFits GM V-8 305\/350 cid engines with Thunderbolt IV \u0026amp; V ignition (2004-2010). Blue wires.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936050532643,"sku":"84-863656A05","price":112.33,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/863656a05.jpg?v=1698795953"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-blue-fits-gm-hi-perf-v-8-454-502-540-572-cid-engines-with-thunderbolt-iv-ignition-84-847701q7","title":"Mercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 High-Performance Ignition System | Marine Grade | 847701Q7","description":"\u003cp data-start=\"0\" data-end=\"121\"\u003e\u003cstrong data-start=\"0\" data-end=\"119\"\u003eMercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 High-Performance Ignition System | Marine Grade | 847701Q7\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"123\" data-end=\"126\"\u003e\n\u003ch3 data-start=\"128\" data-end=\"146\"\u003e\u003cstrong data-start=\"132\" data-end=\"144\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"147\" data-end=\"646\"\u003eThe \u003cstrong data-start=\"151\" data-end=\"205\"\u003eQuicksilver 847701Q7 Blue Wire Spark Plug Wire Kit\u003c\/strong\u003e is designed for \u003cstrong data-start=\"222\" data-end=\"264\"\u003eV8 MerCruiser high-performance engines\u003c\/strong\u003e—including 454, 502, 540, and 572 CID models equipped with \u003cstrong data-start=\"323\" data-end=\"375\"\u003eThunderbolt IV ignition systems (1990 and newer)\u003c\/strong\u003e. Built by \u003cstrong data-start=\"386\" data-end=\"404\"\u003eMercury Marine\u003c\/strong\u003e, this OEM wire set delivers strong, consistent spark even under the toughest conditions. Each wire is factory-cut to exact length and fitted with high-quality boots to ensure a clean, secure connection for maximum performance on the water.\u003c\/p\u003e\n\u003chr data-start=\"648\" data-end=\"651\"\u003e\n\u003ch3 data-start=\"653\" data-end=\"675\"\u003e\u003cstrong data-start=\"657\" data-end=\"673\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"678\" data-end=\"795\"\u003e\n\u003cstrong data-start=\"678\" data-end=\"690\"\u003ePurpose:\u003c\/strong\u003e Delivers steady, reliable spark to all cylinders for consistent ignition and clean engine performance.\u003c\/li\u003e\n\u003cli data-start=\"798\" data-end=\"911\"\u003e\n\u003cstrong data-start=\"798\" data-end=\"811\"\u003eMaterial:\u003c\/strong\u003e Made from marine-grade silicone that resists heat, cracking, and corrosion in salt or freshwater.\u003c\/li\u003e\n\u003cli data-start=\"914\" data-end=\"1022\"\u003e\n\u003cstrong data-start=\"914\" data-end=\"930\"\u003ePerformance:\u003c\/strong\u003e Maintains high spark voltage for crisp acceleration and smooth running at all RPM ranges.\u003c\/li\u003e\n\u003cli data-start=\"1025\" data-end=\"1118\"\u003e\n\u003cstrong data-start=\"1025\" data-end=\"1036\"\u003eDesign:\u003c\/strong\u003e Pre-measured blue wires with snug-fitting boots tailored to each plug location.\u003c\/li\u003e\n\u003cli data-start=\"1121\" data-end=\"1212\"\u003e\n\u003cstrong data-start=\"1121\" data-end=\"1145\"\u003eEase of Use\/Install:\u003c\/strong\u003e Plug-and-play setup—no cutting, trimming, or adjustments needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1214\" data-end=\"1217\"\u003e\n\u003ch3 data-start=\"1219\" data-end=\"1242\"\u003e\u003cstrong data-start=\"1223\" data-end=\"1240\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1245\" data-end=\"1259\"\u003e\u003cstrong data-start=\"1245\" data-end=\"1257\"\u003eEngines:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1264\" data-end=\"1322\"\u003eMerCruiser High-Performance V8s (454, 502, 540, 572 CID)\u003c\/li\u003e\n\u003cli data-start=\"1327\" data-end=\"1380\"\u003eWith Thunderbolt IV Ignition Systems (1990 \u0026amp; Newer)\u003c\/li\u003e\n\u003cli data-start=\"1383\" data-end=\"1434\"\u003e\n\u003cstrong data-start=\"1383\" data-end=\"1392\"\u003eType:\u003c\/strong\u003e Inboard High-Performance Marine Engines\u003c\/li\u003e\n\u003cli data-start=\"1437\" data-end=\"1528\"\u003e\n\u003cstrong data-start=\"1437\" data-end=\"1454\"\u003eCommon Boats:\u003c\/strong\u003e Offshore Rigs | Racing Boats | Sport Cruisers | Classic Muscle Inboards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1530\" data-end=\"1533\"\u003e\n\u003ch3 data-start=\"1535\" data-end=\"1578\"\u003e\u003cstrong data-start=\"1539\" data-end=\"1576\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1579\" data-end=\"1953\"\u003eThis Quicksilver wire set gives your big-block V8 the spark it needs to stay responsive and reliable under load. You’ll notice faster starts, steadier idle, and strong, smooth pull across the power band. The marine-grade insulation handles extreme heat and moisture without losing conductivity, keeping your ignition system dependable no matter how hard you run your boat.\u003c\/p\u003e\n\u003chr data-start=\"1955\" data-end=\"1958\"\u003e\n\u003ch3 data-start=\"1960\" data-end=\"1984\"\u003e\u003cstrong data-start=\"1964\" data-end=\"1982\"\u003eWhy Choose OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1985\" data-end=\"2460\"\u003eWith \u003cstrong data-start=\"1990\" data-end=\"2018\"\u003eMercury Marine OEM parts\u003c\/strong\u003e, you’re getting components designed specifically for your engine—not a one-size-fits-all aftermarket substitute. OEM wires are tested for voltage consistency, heat tolerance, and corrosion resistance to handle real marine conditions. Aftermarket sets can fall short on length or insulation quality, which can cause misfires or reduced performance. OEM ensures perfect fit, lasting durability, and peace of mind every time you turn the key.\u003c\/p\u003e\n\u003chr data-start=\"2462\" data-end=\"2465\"\u003e\n\u003ch3 data-start=\"2467\" data-end=\"2480\"\u003e\u003cstrong data-start=\"2471\" data-end=\"2478\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2481\" data-end=\"2643\"\u003e\u003cstrong data-start=\"2481\" data-end=\"2525\"\u003eQ1: What engines does this wire kit fit?\u003c\/strong\u003e\u003cbr data-start=\"2525\" data-end=\"2528\"\u003eIt fits V8 MerCruiser high-performance engines (454, 502, 540, and 572 CID) with Thunderbolt IV ignition systems.\u003c\/p\u003e\n\u003cp data-start=\"2645\" data-end=\"2787\"\u003e\u003cstrong data-start=\"2645\" data-end=\"2698\"\u003eQ2: Are these wires pre-cut and ready to install?\u003c\/strong\u003e\u003cbr data-start=\"2698\" data-end=\"2701\"\u003eYes, they come factory-cut to length with pre-installed boots for quick, easy setup.\u003c\/p\u003e\n\u003cp data-start=\"2789\" data-end=\"2928\"\u003e\u003cstrong data-start=\"2789\" data-end=\"2836\"\u003eQ3: Can I use them in saltwater conditions?\u003c\/strong\u003e\u003cbr data-start=\"2836\" data-end=\"2839\"\u003eAbsolutely. The marine-grade silicone insulation resists corrosion and moisture damage.\u003c\/p\u003e\n\u003cp data-start=\"2930\" data-end=\"3080\"\u003e\u003cstrong data-start=\"2930\" data-end=\"2980\"\u003eQ4: Will this improve my engine’s performance?\u003c\/strong\u003e\u003cbr data-start=\"2980\" data-end=\"2983\"\u003eYes. Consistent spark helps your motor start faster, idle smoother, and run cleaner under load.\u003c\/p\u003e\n\u003cp data-start=\"3082\" data-end=\"3180\"\u003e\u003cstrong data-start=\"3082\" data-end=\"3121\"\u003eQ5: How many wires come in the set?\u003c\/strong\u003e\u003cbr data-start=\"3121\" data-end=\"3124\"\u003eIt’s a full eight-wire kit—one wire for each cylinder.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936060854563,"sku":"84-847701Q7","price":101.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/847701q7_02.jpg?v=1761577365"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-blue-fits-mie-454-mag-mpi-horizon-84-847701q17","title":"Mercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 Inboard Ignition System | Marine Grade | 847701Q17","description":"\u003cp data-start=\"0\" data-end=\"113\"\u003e\u003cstrong data-start=\"0\" data-end=\"111\"\u003eMercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 Inboard Ignition System | Marine Grade | 847701Q17\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"115\" data-end=\"118\"\u003e\n\u003ch3 data-start=\"120\" data-end=\"138\"\u003e\u003cstrong data-start=\"124\" data-end=\"136\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"139\" data-end=\"562\"\u003eThe \u003cstrong data-start=\"143\" data-end=\"198\"\u003eQuicksilver 847701Q17 Blue Wire Spark Plug Wire Kit\u003c\/strong\u003e is built specifically for the \u003cstrong data-start=\"229\" data-end=\"269\"\u003eV8 MerCruiser 454 Magnum MPI Horizon\u003c\/strong\u003e inboard engines from 1998. Each wire is made to the exact factory length and fitted with heavy-duty boots for a perfect fit. Designed by \u003cstrong data-start=\"407\" data-end=\"425\"\u003eMercury Marine\u003c\/strong\u003e, this set delivers a strong, consistent spark and holds up against the heat, moisture, and vibration that come with life on the water.\u003c\/p\u003e\n\u003chr data-start=\"564\" data-end=\"567\"\u003e\n\u003ch3 data-start=\"569\" data-end=\"591\"\u003e\u003cstrong data-start=\"573\" data-end=\"589\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"594\" data-end=\"702\"\u003e\n\u003cstrong data-start=\"594\" data-end=\"606\"\u003ePurpose:\u003c\/strong\u003e Carries a clean, reliable spark from the ignition system to each plug for smooth performance.\u003c\/li\u003e\n\u003cli data-start=\"705\" data-end=\"818\"\u003e\n\u003cstrong data-start=\"705\" data-end=\"718\"\u003eMaterial:\u003c\/strong\u003e Marine-grade silicone insulation and corrosion-resistant wiring built to handle harsh conditions.\u003c\/li\u003e\n\u003cli data-start=\"821\" data-end=\"927\"\u003e\n\u003cstrong data-start=\"821\" data-end=\"837\"\u003ePerformance:\u003c\/strong\u003e Delivers steady voltage, prevents misfires, and helps your V8 run stronger and cleaner.\u003c\/li\u003e\n\u003cli data-start=\"930\" data-end=\"1045\"\u003e\n\u003cstrong data-start=\"930\" data-end=\"941\"\u003eDesign:\u003c\/strong\u003e Pre-cut blue wires made to exact OEM specs with snug-fitting boots for easy routing and a clean look.\u003c\/li\u003e\n\u003cli data-start=\"1048\" data-end=\"1162\"\u003e\n\u003cstrong data-start=\"1048\" data-end=\"1072\"\u003eEase of Use\/Install:\u003c\/strong\u003e Direct replacement—no cutting, measuring, or guessing needed. Just plug them in and go.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1164\" data-end=\"1167\"\u003e\n\u003ch3 data-start=\"1169\" data-end=\"1192\"\u003e\u003cstrong data-start=\"1173\" data-end=\"1190\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1195\" data-end=\"1250\"\u003e\n\u003cstrong data-start=\"1195\" data-end=\"1207\"\u003eEngines:\u003c\/strong\u003e MerCruiser 454 Magnum MPI Horizon (1998)\u003c\/li\u003e\n\u003cli data-start=\"1253\" data-end=\"1283\"\u003e\n\u003cstrong data-start=\"1253\" data-end=\"1262\"\u003eType:\u003c\/strong\u003e V8 Inboard Engines\u003c\/li\u003e\n\u003cli data-start=\"1286\" data-end=\"1386\"\u003e\n\u003cstrong data-start=\"1286\" data-end=\"1310\"\u003eCommon Applications:\u003c\/strong\u003e Sport Cruisers | Offshore Boats | Cabin Cruisers | Classic Inboard Setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1388\" data-end=\"1391\"\u003e\n\u003ch3 data-start=\"1393\" data-end=\"1436\"\u003e\u003cstrong data-start=\"1397\" data-end=\"1434\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1437\" data-end=\"1830\"\u003eIf your old wires are cracked, worn, or corroded, this kit will make your motor feel new again. With solid spark delivery to every cylinder, you’ll notice quicker starts, smoother idle, and stronger midrange power. The marine-grade insulation keeps electrical energy flowing clean even in damp, salt-heavy air—so you can count on your boat to fire up every time, no matter where you keep it.\u003c\/p\u003e\n\u003chr data-start=\"1832\" data-end=\"1835\"\u003e\n\u003ch3 data-start=\"1837\" data-end=\"1861\"\u003e\u003cstrong data-start=\"1841\" data-end=\"1859\"\u003eWhy Choose OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1862\" data-end=\"2296\"\u003eChoosing \u003cstrong data-start=\"1871\" data-end=\"1899\"\u003eMercury Marine OEM parts\u003c\/strong\u003e means you’re getting gear built exactly for your engine, not an aftermarket “close enough” fit. Every Quicksilver wire is tested for heat resistance, voltage consistency, and corrosion protection. Aftermarket versions often cut corners on insulation or length, which can cause uneven firing or short life. OEM parts fit right, last longer, and protect your engine’s performance and reliability.\u003c\/p\u003e\n\u003chr data-start=\"2298\" data-end=\"2301\"\u003e\n\u003ch3 data-start=\"2303\" data-end=\"2316\"\u003e\u003cstrong data-start=\"2307\" data-end=\"2314\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2317\" data-end=\"2422\"\u003e\u003cstrong data-start=\"2317\" data-end=\"2355\"\u003eQ1: What engine does this kit fit?\u003c\/strong\u003e\u003cbr data-start=\"2355\" data-end=\"2358\"\u003eIt’s made for the V8 MerCruiser 454 Magnum MPI Horizon (1998).\u003c\/p\u003e\n\u003cp data-start=\"2424\" data-end=\"2566\"\u003e\u003cstrong data-start=\"2424\" data-end=\"2487\"\u003eQ2: Are the wires the same length as the factory originals?\u003c\/strong\u003e\u003cbr data-start=\"2487\" data-end=\"2490\"\u003eYes, they’re factory-cut to the exact lengths needed and ready to install.\u003c\/p\u003e\n\u003cp data-start=\"2568\" data-end=\"2693\"\u003e\u003cstrong data-start=\"2568\" data-end=\"2612\"\u003eQ3: Will they handle saltwater exposure?\u003c\/strong\u003e\u003cbr data-start=\"2612\" data-end=\"2615\"\u003eYes. They’re marine-rated and built to resist corrosion and moisture damage.\u003c\/p\u003e\n\u003cp data-start=\"2695\" data-end=\"2836\"\u003e\u003cstrong data-start=\"2695\" data-end=\"2751\"\u003eQ4: Do they come with the spark plug boots attached?\u003c\/strong\u003e\u003cbr data-start=\"2751\" data-end=\"2754\"\u003eThey do—each wire comes fully assembled with tight-fitting boots for easy setup.\u003c\/p\u003e\n\u003cp data-start=\"2838\" data-end=\"2941\"\u003e\u003cstrong data-start=\"2838\" data-end=\"2874\"\u003eQ5: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"2874\" data-end=\"2877\"\u003eYou get a full set of eight blue wires, one for each cylinder.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936060985635,"sku":"84-847701Q17","price":100.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/847701q17_main.jpg?v=1760631270"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-blue-fits-mcm-377-scorpion-84-847701q26","title":"Mercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 Inboard Ignition System | Marine Grade | 847701Q26","description":"\u003cp data-start=\"0\" data-end=\"113\"\u003e\u003cstrong data-start=\"0\" data-end=\"111\"\u003eMercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 Inboard Ignition System | Marine Grade | 847701Q26\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"115\" data-end=\"118\"\u003e\n\u003ch3 data-start=\"120\" data-end=\"138\"\u003e\u003cstrong data-start=\"124\" data-end=\"136\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"139\" data-end=\"596\"\u003eThe \u003cstrong data-start=\"143\" data-end=\"198\"\u003eQuicksilver 847701Q26 Blue Wire Spark Plug Wire Kit\u003c\/strong\u003e is made for \u003cstrong data-start=\"211\" data-end=\"241\"\u003eV8 MerCruiser 377 Scorpion\u003c\/strong\u003e engines built between 1999 and 2000. Each wire is built to factory length and fitted with high-quality boots, ready to plug in and go. Designed by \u003cstrong data-start=\"389\" data-end=\"407\"\u003eMercury Marine\u003c\/strong\u003e, this OEM set delivers the strong, consistent spark that a performance engine like the Scorpion demands. It’s tough, dependable, and made to hold up in the real-world marine environment.\u003c\/p\u003e\n\u003chr data-start=\"598\" data-end=\"601\"\u003e\n\u003ch3 data-start=\"603\" data-end=\"625\"\u003e\u003cstrong data-start=\"607\" data-end=\"623\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"628\" data-end=\"728\"\u003e\n\u003cstrong data-start=\"628\" data-end=\"640\"\u003ePurpose:\u003c\/strong\u003e Sends a clean, steady spark to every cylinder for reliable starts and smooth running.\u003c\/li\u003e\n\u003cli data-start=\"731\" data-end=\"839\"\u003e\n\u003cstrong data-start=\"731\" data-end=\"744\"\u003eMaterial:\u003c\/strong\u003e Marine-grade silicone jacket and corrosion-resistant wire built to handle heat and moisture.\u003c\/li\u003e\n\u003cli data-start=\"842\" data-end=\"945\"\u003e\n\u003cstrong data-start=\"842\" data-end=\"858\"\u003ePerformance:\u003c\/strong\u003e Keeps spark voltage consistent for better throttle response and efficient fuel burn.\u003c\/li\u003e\n\u003cli data-start=\"948\" data-end=\"1046\"\u003e\n\u003cstrong data-start=\"948\" data-end=\"959\"\u003eDesign:\u003c\/strong\u003e Pre-cut blue wires with tight-fitting boots made for perfect reach and easy routing.\u003c\/li\u003e\n\u003cli data-start=\"1049\" data-end=\"1143\"\u003e\n\u003cstrong data-start=\"1049\" data-end=\"1073\"\u003eEase of Use\/Install:\u003c\/strong\u003e Drops right in with no measuring, trimming, or modification needed.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1145\" data-end=\"1148\"\u003e\n\u003ch3 data-start=\"1150\" data-end=\"1173\"\u003e\u003cstrong data-start=\"1154\" data-end=\"1171\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1176\" data-end=\"1229\"\u003e\n\u003cstrong data-start=\"1176\" data-end=\"1188\"\u003eEngines:\u003c\/strong\u003e V8 MerCruiser 377 Scorpion (1999–2000)\u003c\/li\u003e\n\u003cli data-start=\"1232\" data-end=\"1265\"\u003e\n\u003cstrong data-start=\"1232\" data-end=\"1248\"\u003eEngine Type:\u003c\/strong\u003e Inboard Marine\u003c\/li\u003e\n\u003cli data-start=\"1268\" data-end=\"1351\"\u003e\n\u003cstrong data-start=\"1268\" data-end=\"1285\"\u003eCommon Boats:\u003c\/strong\u003e Ski Boats | Performance Runabouts | Sport Cruisers | Wake Boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1353\" data-end=\"1356\"\u003e\n\u003ch3 data-start=\"1358\" data-end=\"1401\"\u003e\u003cstrong data-start=\"1362\" data-end=\"1399\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1402\" data-end=\"1845\"\u003eThis wire kit keeps your MerCruiser’s ignition system performing the way it should—strong, steady, and clean. You’ll notice quicker starts, smoother idle, and stronger pull through the midrange. The marine-grade insulation resists cracking and protects against corrosion from salt or humidity, so your spark stays sharp season after season. It’s an easy, factory-fit upgrade that helps your boat stay dependable every time you hit the water.\u003c\/p\u003e\n\u003chr data-start=\"1847\" data-end=\"1850\"\u003e\n\u003ch3 data-start=\"1852\" data-end=\"1876\"\u003e\u003cstrong data-start=\"1856\" data-end=\"1874\"\u003eWhy Choose OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1877\" data-end=\"2306\"\u003eChoosing \u003cstrong data-start=\"1886\" data-end=\"1914\"\u003eMercury Marine OEM parts\u003c\/strong\u003e means you’re using the same gear your engine was built with. Every Quicksilver wire set is tested for voltage balance, insulation strength, and resistance to marine wear. Aftermarket kits may fit loosely or use weaker materials that fail faster under heat or salt. With OEM, you get the perfect fit, the right performance, and the peace of mind that comes from genuine Mercury engineering.\u003c\/p\u003e\n\u003chr data-start=\"2308\" data-end=\"2311\"\u003e\n\u003ch3 data-start=\"2313\" data-end=\"2326\"\u003e\u003cstrong data-start=\"2317\" data-end=\"2324\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2327\" data-end=\"2439\"\u003e\u003cstrong data-start=\"2327\" data-end=\"2362\"\u003eQ1: What engines does this fit?\u003c\/strong\u003e\u003cbr data-start=\"2362\" data-end=\"2365\"\u003eIt’s made for V8 MerCruiser 377 Scorpion inboard engines from 1999–2000.\u003c\/p\u003e\n\u003cp data-start=\"2441\" data-end=\"2569\"\u003e\u003cstrong data-start=\"2441\" data-end=\"2490\"\u003eQ2: Are the wires pre-fitted and ready to go?\u003c\/strong\u003e\u003cbr data-start=\"2490\" data-end=\"2493\"\u003eYes, they come pre-cut with boots already attached for quick installation.\u003c\/p\u003e\n\u003cp data-start=\"2571\" data-end=\"2687\"\u003e\u003cstrong data-start=\"2571\" data-end=\"2610\"\u003eQ3: Will they hold up in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2610\" data-end=\"2613\"\u003eAbsolutely—they’re marine-rated to resist corrosion, heat, and moisture.\u003c\/p\u003e\n\u003cp data-start=\"2689\" data-end=\"2828\"\u003e\u003cstrong data-start=\"2689\" data-end=\"2726\"\u003eQ4: Do these improve performance?\u003c\/strong\u003e\u003cbr data-start=\"2726\" data-end=\"2729\"\u003eThey keep spark delivery strong and consistent, helping the engine run smoother and start faster.\u003c\/p\u003e\n\u003cp data-start=\"2830\" data-end=\"2922\"\u003e\u003cstrong data-start=\"2830\" data-end=\"2868\"\u003eQ5: How many wires are in the kit?\u003c\/strong\u003e\u003cbr data-start=\"2868\" data-end=\"2871\"\u003eIt’s a full eight-wire set—one for each cylinder.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936061018403,"sku":"84-847701Q26","price":93.36,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/847701q26_main.jpg?v=1760631264"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-blue-fits-mcm-500-efi-575-sci-84-847701q25","title":"Mercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 Inboard Ignition System | Marine Grade | 847701Q25","description":"\u003cp data-start=\"0\" data-end=\"113\"\u003e\u003cstrong data-start=\"0\" data-end=\"111\"\u003eMercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 Inboard Ignition System | Marine Grade | 847701Q25\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"115\" data-end=\"118\"\u003e\n\u003ch3 data-start=\"120\" data-end=\"138\"\u003e\u003cstrong data-start=\"124\" data-end=\"136\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"139\" data-end=\"644\"\u003eThe \u003cstrong data-start=\"143\" data-end=\"198\"\u003eQuicksilver 847701Q25 Blue Wire Spark Plug Wire Kit\u003c\/strong\u003e is made for \u003cstrong data-start=\"211\" data-end=\"248\"\u003eV8 MerCruiser 500 EFI (1998–2004)\u003c\/strong\u003e and \u003cstrong data-start=\"253\" data-end=\"276\"\u003e575 SCi (2000–2005)\u003c\/strong\u003e engines—two powerhouses that need reliable spark delivery every time. This OEM kit from \u003cstrong data-start=\"365\" data-end=\"383\"\u003eMercury Marine\u003c\/strong\u003e comes ready to install with factory-length blue wires and heavy-duty boots already attached. Each wire is built to handle heat, moisture, and vibration, giving your high-performance motor the steady ignition it needs to run clean and strong out on the water.\u003c\/p\u003e\n\u003chr data-start=\"646\" data-end=\"649\"\u003e\n\u003ch3 data-start=\"651\" data-end=\"673\"\u003e\u003cstrong data-start=\"655\" data-end=\"671\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"676\" data-end=\"780\"\u003e\n\u003cstrong data-start=\"676\" data-end=\"688\"\u003ePurpose:\u003c\/strong\u003e Sends consistent spark to each plug for smooth starts and dependable ignition under load.\u003c\/li\u003e\n\u003cli data-start=\"783\" data-end=\"890\"\u003e\n\u003cstrong data-start=\"783\" data-end=\"796\"\u003eMaterial:\u003c\/strong\u003e Made with thick marine-grade silicone that resists heat, cracking, and saltwater corrosion.\u003c\/li\u003e\n\u003cli data-start=\"893\" data-end=\"1002\"\u003e\n\u003cstrong data-start=\"893\" data-end=\"909\"\u003ePerformance:\u003c\/strong\u003e Keeps voltage steady for crisp throttle response, efficient fuel burn, and fewer misfires.\u003c\/li\u003e\n\u003cli data-start=\"1005\" data-end=\"1106\"\u003e\n\u003cstrong data-start=\"1005\" data-end=\"1016\"\u003eDesign:\u003c\/strong\u003e Each wire is cut to the exact factory length and fitted with tight, weatherproof boots.\u003c\/li\u003e\n\u003cli data-start=\"1109\" data-end=\"1208\"\u003e\n\u003cstrong data-start=\"1109\" data-end=\"1133\"\u003eEase of Use\/Install:\u003c\/strong\u003e Direct replacement—no trimming or adjustments. Just plug them in and go.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1210\" data-end=\"1213\"\u003e\n\u003ch3 data-start=\"1215\" data-end=\"1238\"\u003e\u003cstrong data-start=\"1219\" data-end=\"1236\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1241\" data-end=\"1255\"\u003e\u003cstrong data-start=\"1241\" data-end=\"1253\"\u003eEngines:\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1260\" data-end=\"1292\"\u003eMerCruiser 500 EFI (1998–2004)\u003c\/li\u003e\n\u003cli data-start=\"1297\" data-end=\"1329\"\u003eMerCruiser 575 SCi (2000–2005)\u003c\/li\u003e\n\u003cli data-start=\"1332\" data-end=\"1368\"\u003e\n\u003cstrong data-start=\"1332\" data-end=\"1348\"\u003eEngine Type:\u003c\/strong\u003e V8 Inboard Marine\u003c\/li\u003e\n\u003cli data-start=\"1371\" data-end=\"1480\"\u003e\n\u003cstrong data-start=\"1371\" data-end=\"1388\"\u003eCommon Boats:\u003c\/strong\u003e Offshore Performance Boats | Sport Cruisers | Classic Muscle Boats | High-Output Inboards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1482\" data-end=\"1485\"\u003e\n\u003ch3 data-start=\"1487\" data-end=\"1530\"\u003e\u003cstrong data-start=\"1491\" data-end=\"1528\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1531\" data-end=\"1965\"\u003eThis wire set helps your big-block MerCruiser stay strong and consistent, even when you’re pushing it hard. You’ll notice smoother idle, faster starts, and cleaner acceleration. The insulation stands up to the punishing heat of marine engine bays while keeping out moisture and corrosion. It’s the kind of small upgrade that keeps your boat dependable weekend after weekend—and that peace of mind matters when you’re far from shore.\u003c\/p\u003e\n\u003chr data-start=\"1967\" data-end=\"1970\"\u003e\n\u003ch3 data-start=\"1972\" data-end=\"1996\"\u003e\u003cstrong data-start=\"1976\" data-end=\"1994\"\u003eWhy Choose OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1997\" data-end=\"2448\"\u003eWhen you use \u003cstrong data-start=\"2010\" data-end=\"2038\"\u003eMercury Marine OEM parts\u003c\/strong\u003e, you’re not guessing—you’re getting the exact fit and performance your engine was built for. OEM wires are tested for voltage balance, heat resistance, and flexibility in harsh marine conditions. Aftermarket sets might work at first, but they rarely hold up long term. With Quicksilver, you get precision, durability, and the same quality that Mercury installs at the factory—no surprises, just performance.\u003c\/p\u003e\n\u003chr data-start=\"2450\" data-end=\"2453\"\u003e\n\u003ch3 data-start=\"2455\" data-end=\"2468\"\u003e\u003cstrong data-start=\"2459\" data-end=\"2466\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2469\" data-end=\"2595\"\u003e\u003cstrong data-start=\"2469\" data-end=\"2509\"\u003eQ1: Which engines does this kit fit?\u003c\/strong\u003e\u003cbr data-start=\"2509\" data-end=\"2512\"\u003eIt’s built for MerCruiser 500 EFI (1998–2004) and 575 SCi (2000–2005) V8 engines.\u003c\/p\u003e\n\u003cp data-start=\"2597\" data-end=\"2725\"\u003e\u003cstrong data-start=\"2597\" data-end=\"2636\"\u003eQ2: Are the wires ready to install?\u003c\/strong\u003e\u003cbr data-start=\"2636\" data-end=\"2639\"\u003eYes. They’re factory-length with pre-fitted boots—just swap them in and you’re done.\u003c\/p\u003e\n\u003cp data-start=\"2727\" data-end=\"2868\"\u003e\u003cstrong data-start=\"2727\" data-end=\"2775\"\u003eQ3: Can they handle saltwater and high heat?\u003c\/strong\u003e\u003cbr data-start=\"2775\" data-end=\"2778\"\u003eAbsolutely. They’re made for tough marine use and hold up well in hot, humid conditions.\u003c\/p\u003e\n\u003cp data-start=\"2870\" data-end=\"3002\"\u003e\u003cstrong data-start=\"2870\" data-end=\"2917\"\u003eQ4: Will I notice a performance difference?\u003c\/strong\u003e\u003cbr data-start=\"2917\" data-end=\"2920\"\u003eMost boaters do—faster starts, cleaner running, and fewer misses under throttle.\u003c\/p\u003e\n\u003cp data-start=\"3004\" data-end=\"3101\"\u003e\u003cstrong data-start=\"3004\" data-end=\"3042\"\u003eQ5: How many wires are in the kit?\u003c\/strong\u003e\u003cbr data-start=\"3042\" data-end=\"3045\"\u003eIt’s a complete eight-wire set, one for each cylinder.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936061083939,"sku":"84-847701Q25","price":99.24,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/847701q25_main.jpg?v=1760631265"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-blue-fits-mie-350-mag-horizon-84-847701q24","title":"Mercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 Inboard Ignition System | Marine Grade | 847701Q24","description":"\u003cp data-start=\"0\" data-end=\"113\"\u003e\u003cstrong data-start=\"0\" data-end=\"111\"\u003eMercury – Quicksilver Blue Wire Spark Plug Wire Kit | V8 Inboard Ignition System | Marine Grade | 847701Q24\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"115\" data-end=\"118\"\u003e\n\u003ch3 data-start=\"120\" data-end=\"138\"\u003e\u003cstrong data-start=\"124\" data-end=\"136\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"139\" data-end=\"561\"\u003eThe \u003cstrong data-start=\"143\" data-end=\"198\"\u003eQuicksilver 847701Q24 Blue Wire Spark Plug Wire Kit\u003c\/strong\u003e is built for \u003cstrong data-start=\"212\" data-end=\"252\"\u003eV8 MerCruiser 350 Magnum and Horizon\u003c\/strong\u003e inboard engines from 1999–2007. Each wire is the exact length your engine needs, with durable boots already installed for a clean, easy fit. Made by \u003cstrong data-start=\"402\" data-end=\"420\"\u003eMercury Marine\u003c\/strong\u003e, this OEM set keeps your ignition strong and reliable, giving you smoother starts, steady idle, and solid power when you hit the throttle.\u003c\/p\u003e\n\u003chr data-start=\"563\" data-end=\"566\"\u003e\n\u003ch3 data-start=\"568\" data-end=\"590\"\u003e\u003cstrong data-start=\"572\" data-end=\"588\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"593\" data-end=\"701\"\u003e\n\u003cstrong data-start=\"593\" data-end=\"605\"\u003ePurpose:\u003c\/strong\u003e Sends a consistent spark from the distributor to each plug for dependable engine performance.\u003c\/li\u003e\n\u003cli data-start=\"704\" data-end=\"816\"\u003e\n\u003cstrong data-start=\"704\" data-end=\"717\"\u003eMaterial:\u003c\/strong\u003e Marine-grade silicone and corrosion-resistant wiring that stands up to heat, moisture, and salt.\u003c\/li\u003e\n\u003cli data-start=\"819\" data-end=\"929\"\u003e\n\u003cstrong data-start=\"819\" data-end=\"835\"\u003ePerformance:\u003c\/strong\u003e Keeps spark strength steady for smooth acceleration, cleaner fuel burn, and fewer misfires.\u003c\/li\u003e\n\u003cli data-start=\"932\" data-end=\"1041\"\u003e\n\u003cstrong data-start=\"932\" data-end=\"943\"\u003eDesign:\u003c\/strong\u003e Blue pre-measured wires with snug boots that fit perfectly and stay secure even in rough water.\u003c\/li\u003e\n\u003cli data-start=\"1044\" data-end=\"1151\"\u003e\n\u003cstrong data-start=\"1044\" data-end=\"1068\"\u003eEase of Use\/Install:\u003c\/strong\u003e Ready to go right out of the box—no trimming, crimping, or extra setup required.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1153\" data-end=\"1156\"\u003e\n\u003ch3 data-start=\"1158\" data-end=\"1181\"\u003e\u003cstrong data-start=\"1162\" data-end=\"1179\"\u003eCompatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1184\" data-end=\"1245\"\u003e\n\u003cstrong data-start=\"1184\" data-end=\"1196\"\u003eEngines:\u003c\/strong\u003e V8 MerCruiser 350 Magnum \u0026amp; Horizon (1999–2007)\u003c\/li\u003e\n\u003cli data-start=\"1248\" data-end=\"1282\"\u003e\n\u003cstrong data-start=\"1248\" data-end=\"1257\"\u003eType:\u003c\/strong\u003e Inboard Marine Engines\u003c\/li\u003e\n\u003cli data-start=\"1285\" data-end=\"1365\"\u003e\n\u003cstrong data-start=\"1285\" data-end=\"1299\"\u003eIdeal For:\u003c\/strong\u003e Cabin Cruisers | Sport Boats | Offshore Rigs | Classic Inboards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1367\" data-end=\"1370\"\u003e\n\u003ch3 data-start=\"1372\" data-end=\"1415\"\u003e\u003cstrong data-start=\"1376\" data-end=\"1413\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1416\" data-end=\"1851\"\u003eThis Quicksilver wire set brings back the crisp spark your engine needs to run right. You’ll notice quicker starts, smoother running at idle, and cleaner pull through the power band. The marine-grade insulation resists heat and moisture so your ignition stays strong all season. Whether you’re cruising the coast or running offshore, these wires give you the reliability and peace of mind that only factory-quality parts can deliver.\u003c\/p\u003e\n\u003chr data-start=\"1853\" data-end=\"1856\"\u003e\n\u003ch3 data-start=\"1858\" data-end=\"1882\"\u003e\u003cstrong data-start=\"1862\" data-end=\"1880\"\u003eWhy Choose OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1883\" data-end=\"2338\"\u003eWhen you go with \u003cstrong data-start=\"1900\" data-end=\"1928\"\u003eMercury Marine OEM parts\u003c\/strong\u003e, you’re getting the same exact quality your engine left the factory with. OEM wires are designed for perfect fit, tested to handle the marine environment, and built to last. Aftermarket sets might look similar, but small differences in insulation, length, or resistance can cause uneven firing or early wear. With OEM, you get precision, performance, and the confidence that your motor will fire every time.\u003c\/p\u003e\n\u003chr data-start=\"2340\" data-end=\"2343\"\u003e\n\u003ch3 data-start=\"2345\" data-end=\"2358\"\u003e\u003cstrong data-start=\"2349\" data-end=\"2356\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2359\" data-end=\"2493\"\u003e\u003cstrong data-start=\"2359\" data-end=\"2403\"\u003eQ1: What engines will this wire kit fit?\u003c\/strong\u003e\u003cbr data-start=\"2403\" data-end=\"2406\"\u003eIt’s made for MerCruiser 350 Magnum and Horizon V8 inboard engines from 1999 to 2007.\u003c\/p\u003e\n\u003cp data-start=\"2495\" data-end=\"2623\"\u003e\u003cstrong data-start=\"2495\" data-end=\"2546\"\u003eQ2: Are the wires pre-cut and ready to install?\u003c\/strong\u003e\u003cbr data-start=\"2546\" data-end=\"2549\"\u003eYes. Each wire is the exact length you need with boots already attached.\u003c\/p\u003e\n\u003cp data-start=\"2625\" data-end=\"2749\"\u003e\u003cstrong data-start=\"2625\" data-end=\"2661\"\u003eQ3: Can I use them in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2661\" data-end=\"2664\"\u003eYes. They’re marine-rated and built to resist corrosion, heat, and water intrusion.\u003c\/p\u003e\n\u003cp data-start=\"2751\" data-end=\"2884\"\u003e\u003cstrong data-start=\"2751\" data-end=\"2784\"\u003eQ4: Do they come color-coded?\u003c\/strong\u003e\u003cbr data-start=\"2784\" data-end=\"2787\"\u003eYes, the set uses Mercury’s signature blue wires, making installation simple and clean-looking.\u003c\/p\u003e\n\u003cp data-start=\"2886\" data-end=\"2988\"\u003e\u003cstrong data-start=\"2886\" data-end=\"2925\"\u003eQ5: How many wires come in the set?\u003c\/strong\u003e\u003cbr data-start=\"2925\" data-end=\"2928\"\u003eIt’s a full set—eight spark plug wires for your V8 engine.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936061247779,"sku":"84-847701Q24","price":100.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/847701q24_main.jpg?v=1760631266"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-ford-v-8-engines-with-conventional-points-or-thunderbolt-ignition-84-816761q9","title":"Mercury – Quicksilver 816761Q9 Spark Plug Wire Kit | V8 MerCruiser Engines (Ford \u0026 GM) | Points \u0026 Thunderbolt Ignition | 816761Q9","description":"\u003cp data-start=\"0\" data-end=\"135\"\u003e\u003cstrong data-start=\"0\" data-end=\"133\"\u003eMercury – Quicksilver 816761Q9 Spark Plug Wire Kit | V8 MerCruiser Engines (Ford \u0026amp; GM) | Points \u0026amp; Thunderbolt Ignition | 816761Q9\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"137\" data-end=\"140\"\u003e\n\u003ch3 data-start=\"142\" data-end=\"160\"\u003e\u003cstrong data-start=\"146\" data-end=\"158\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"161\" data-end=\"576\"\u003eReliable spark makes all the difference in how your boat performs. The \u003cstrong data-start=\"232\" data-end=\"276\"\u003eQuicksilver 816761Q9 Spark Plug Wire Kit\u003c\/strong\u003e keeps classic \u003cstrong data-start=\"291\" data-end=\"316\"\u003eV8 MerCruiser engines\u003c\/strong\u003e — built by \u003cstrong data-start=\"328\" data-end=\"354\"\u003eFord or General Motors\u003c\/strong\u003e — running strong and smooth. Designed for \u003cstrong data-start=\"397\" data-end=\"436\"\u003epoints ignition systems (1963–1982)\u003c\/strong\u003e and \u003cstrong data-start=\"441\" data-end=\"485\"\u003eThunderbolt ignition systems (1968–1976)\u003c\/strong\u003e, this OEM wire set restores the clean, consistent ignition these engines were known for.\u003c\/p\u003e\n\u003cp data-start=\"578\" data-end=\"854\"\u003eEach wire is precision-cut for perfect routing and finished with molded boots that seal tight against water and corrosion. It’s built to Mercury’s standards for endurance, flexibility, and long-term marine reliability — the right fix for engines that have earned their keep.\u003c\/p\u003e\n\u003chr data-start=\"856\" data-end=\"859\"\u003e\n\u003ch3 data-start=\"861\" data-end=\"883\"\u003e\u003cstrong data-start=\"865\" data-end=\"881\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"886\" data-end=\"983\"\u003e\n\u003cstrong data-start=\"886\" data-end=\"898\"\u003ePurpose:\u003c\/strong\u003e Restores clean, consistent spark for smoother starts and better throttle response.\u003c\/li\u003e\n\u003cli data-start=\"986\" data-end=\"1122\"\u003e\n\u003cstrong data-start=\"986\" data-end=\"998\"\u003eFitment:\u003c\/strong\u003e Fits \u003cstrong data-start=\"1004\" data-end=\"1043\"\u003eV8 MerCruiser engines by Ford or GM\u003c\/strong\u003e with \u003cstrong data-start=\"1049\" data-end=\"1071\"\u003epoints (1963–1982)\u003c\/strong\u003e or \u003cstrong data-start=\"1075\" data-end=\"1102\"\u003eThunderbolt (1968–1976)\u003c\/strong\u003e ignition systems.\u003c\/li\u003e\n\u003cli data-start=\"1125\" data-end=\"1215\"\u003e\n\u003cstrong data-start=\"1125\" data-end=\"1142\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1152\" data-end=\"1185\"\u003eset of eight spark plug wires\u003c\/strong\u003e with molded plug-end boots.\u003c\/li\u003e\n\u003cli data-start=\"1218\" data-end=\"1316\"\u003e\n\u003cstrong data-start=\"1218\" data-end=\"1229\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1243\" data-end=\"1261\"\u003efactory-length\u003c\/strong\u003e to reach the correct plug location with a clean fit.\u003c\/li\u003e\n\u003cli data-start=\"1319\" data-end=\"1405\"\u003e\n\u003cstrong data-start=\"1319\" data-end=\"1334\"\u003eDurability:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1345\" data-end=\"1402\"\u003emarine-grade heat, vibration, and moisture resistance\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1407\" data-end=\"1410\"\u003e\n\u003ch3 data-start=\"1412\" data-end=\"1449\"\u003e\u003cstrong data-start=\"1416\" data-end=\"1447\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1452\" data-end=\"1505\"\u003eFord and GM-based V8 MerCruiser engines (1963–1982)\u003c\/li\u003e\n\u003cli data-start=\"1508\" data-end=\"1555\"\u003ePoints and early Thunderbolt ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1558\" data-end=\"1634\"\u003eCommon on vintage cruisers, classic ski boats, and early sterndrive models\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1636\" data-end=\"1639\"\u003e\n\u003ch3 data-start=\"1641\" data-end=\"1683\"\u003e\u003cstrong data-start=\"1645\" data-end=\"1681\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1684\" data-end=\"1913\"\u003eOld or cracked plug wires can sap your engine’s power and reliability. The \u003cstrong data-start=\"1759\" data-end=\"1775\"\u003e816761Q9 kit\u003c\/strong\u003e restores solid spark energy across all eight cylinders, helping your engine fire up quicker, idle smoother, and run cleaner under load.\u003c\/p\u003e\n\u003cp data-start=\"1915\" data-end=\"2271\"\u003eEach wire’s core is designed for efficient voltage transfer, while the marine-grade insulation prevents arcing or shorting in damp conditions. The molded boots seal tightly to keep moisture and salt out, extending the life of your ignition system. Once installed, you’ll notice steadier throttle response and more dependable performance across every run.\u003c\/p\u003e\n\u003chr data-start=\"2273\" data-end=\"2276\"\u003e\n\u003ch3 data-start=\"2278\" data-end=\"2299\"\u003e\u003cstrong data-start=\"2282\" data-end=\"2297\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2300\" data-end=\"2530\"\u003eMercury’s OEM wires are made for marine use — built to withstand the elements that car parts can’t handle. Every Quicksilver set is tested for exact fit, proper resistance, and flexibility to survive years of heat and vibration.\u003c\/p\u003e\n\u003cp data-start=\"2532\" data-end=\"2821\"\u003eAftermarket wires might look the same, but they often miss on key details like length, resistance, or insulation quality. With \u003cstrong data-start=\"2659\" data-end=\"2688\"\u003egenuine Quicksilver wires\u003c\/strong\u003e, you get the fit and dependability your classic MerCruiser was built for — no trimming, no guesswork, just plug-and-go confidence.\u003c\/p\u003e\n\u003chr data-start=\"2823\" data-end=\"2826\"\u003e\n\u003ch3 data-start=\"2828\" data-end=\"2841\"\u003e\u003cstrong data-start=\"2832\" data-end=\"2839\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2842\" data-end=\"3042\"\u003e\u003cstrong data-start=\"2842\" data-end=\"2896\"\u003eQ1: What engines fit the Quicksilver 816761Q9 kit?\u003c\/strong\u003e\u003cbr data-start=\"2896\" data-end=\"2899\"\u003eA: It’s made for \u003cstrong data-start=\"2916\" data-end=\"2961\"\u003eV8 MerCruiser engines built by Ford or GM\u003c\/strong\u003e, using \u003cstrong data-start=\"2969\" data-end=\"2991\"\u003epoints (1963–1982)\u003c\/strong\u003e or \u003cstrong data-start=\"2995\" data-end=\"3022\"\u003eThunderbolt (1968–1976)\u003c\/strong\u003e ignition systems.\u003c\/p\u003e\n\u003cp data-start=\"3044\" data-end=\"3169\"\u003e\u003cstrong data-start=\"3044\" data-end=\"3080\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"3080\" data-end=\"3083\"\u003eA: The kit comes with \u003cstrong data-start=\"3105\" data-end=\"3131\"\u003eeight spark plug wires\u003c\/strong\u003e, each pre-fitted with molded boots.\u003c\/p\u003e\n\u003cp data-start=\"3171\" data-end=\"3321\"\u003e\u003cstrong data-start=\"3171\" data-end=\"3216\"\u003eQ3: Can these wires handle saltwater use?\u003c\/strong\u003e\u003cbr data-start=\"3216\" data-end=\"3219\"\u003eA: Yes. They’re made with corrosion-resistant materials designed for both salt and freshwater boats.\u003c\/p\u003e\n\u003cp data-start=\"3323\" data-end=\"3465\"\u003e\u003cstrong data-start=\"3323\" data-end=\"3356\"\u003eQ4: How easy is installation?\u003c\/strong\u003e\u003cbr data-start=\"3356\" data-end=\"3359\"\u003eA: Simple — just replace one wire at a time to keep the firing order correct. No special tools required.\u003c\/p\u003e\n\u003cp data-start=\"3467\" data-end=\"3651\"\u003e\u003cstrong data-start=\"3467\" data-end=\"3506\"\u003eQ5: Why OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3506\" data-end=\"3509\"\u003eA: OEM wires offer perfect fit, better spark stability, and longer life in marine conditions. Aftermarket sets can’t match that reliability.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069013795,"sku":"84-816761Q9","price":102.63,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q9_main.jpg?v=1760631230"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-in-line-6-cylindera-engines-with-conventional-points-ignition-84-816761q8","title":"Mercury – Quicksilver 816761Q8 Spark Plug Wire Kit | Inline 6-Cylinder MerCruiser Engines | Points Ignition | 816761Q8","description":"\u003cp data-start=\"0\" data-end=\"124\"\u003e\u003cstrong data-start=\"0\" data-end=\"122\"\u003eMercury – Quicksilver 816761Q8 Spark Plug Wire Kit | Inline 6-Cylinder MerCruiser Engines | Points Ignition | 816761Q8\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"126\" data-end=\"129\"\u003e\n\u003ch3 data-start=\"131\" data-end=\"149\"\u003e\u003cstrong data-start=\"135\" data-end=\"147\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"150\" data-end=\"467\"\u003eIf your old inline-six MerCruiser is starting to sputter or miss, new plug wires might be just what it needs. The \u003cstrong data-start=\"264\" data-end=\"308\"\u003eQuicksilver 816761Q8 Spark Plug Wire Kit\u003c\/strong\u003e brings back smooth ignition and steady performance for \u003cstrong data-start=\"364\" data-end=\"409\"\u003e6-cylinder MerCruiser engines (1963–1981)\u003c\/strong\u003e equipped with \u003cstrong data-start=\"424\" data-end=\"464\"\u003econventional points ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"469\" data-end=\"783\"\u003eThis OEM set includes all six wires, each molded, measured, and cut to the correct length for your setup. The insulation is marine-grade and built to handle the tough stuff — heat, salt spray, vibration, and long days on the water. It’s a simple upgrade that keeps your vintage engine running clean and reliable.\u003c\/p\u003e\n\u003chr data-start=\"785\" data-end=\"788\"\u003e\n\u003ch3 data-start=\"790\" data-end=\"812\"\u003e\u003cstrong data-start=\"794\" data-end=\"810\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"815\" data-end=\"907\"\u003e\n\u003cstrong data-start=\"815\" data-end=\"827\"\u003ePurpose:\u003c\/strong\u003e Replaces old or brittle wires to restore proper spark and engine performance.\u003c\/li\u003e\n\u003cli data-start=\"910\" data-end=\"1016\"\u003e\n\u003cstrong data-start=\"910\" data-end=\"922\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"927\" data-end=\"979\"\u003einline 6-cylinder MerCruiser engines (1963–1981)\u003c\/strong\u003e using \u003cstrong data-start=\"986\" data-end=\"1013\"\u003epoints ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1019\" data-end=\"1124\"\u003e\n\u003cstrong data-start=\"1019\" data-end=\"1036\"\u003eKit Contents:\u003c\/strong\u003e \u003cstrong data-start=\"1037\" data-end=\"1061\"\u003eSix spark plug wires\u003c\/strong\u003e with molded boots for tight, moisture-resistant connections.\u003c\/li\u003e\n\u003cli data-start=\"1127\" data-end=\"1216\"\u003e\n\u003cstrong data-start=\"1127\" data-end=\"1138\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1152\" data-end=\"1170\"\u003efactory-length\u003c\/strong\u003e for correct routing and clean installation.\u003c\/li\u003e\n\u003cli data-start=\"1219\" data-end=\"1324\"\u003e\n\u003cstrong data-start=\"1219\" data-end=\"1234\"\u003eDurability:\u003c\/strong\u003e Built to resist \u003cstrong data-start=\"1251\" data-end=\"1292\"\u003emarine heat, vibration, and corrosion\u003c\/strong\u003e for long-lasting reliability.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1326\" data-end=\"1329\"\u003e\n\u003ch3 data-start=\"1331\" data-end=\"1368\"\u003e\u003cstrong data-start=\"1335\" data-end=\"1366\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1371\" data-end=\"1421\"\u003eInline 6-cylinder MerCruiser engines (1963–1981)\u003c\/li\u003e\n\u003cli data-start=\"1424\" data-end=\"1449\"\u003ePoints ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1452\" data-end=\"1524\"\u003eCommon in classic cruisers, fishing boats, and inboard\/outboard setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1526\" data-end=\"1529\"\u003e\n\u003ch3 data-start=\"1531\" data-end=\"1573\"\u003e\u003cstrong data-start=\"1535\" data-end=\"1571\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1574\" data-end=\"1839\"\u003eThe \u003cstrong data-start=\"1578\" data-end=\"1590\"\u003e816761Q8\u003c\/strong\u003e kit gives your ignition a fresh start. Each wire delivers consistent voltage to its spark plug, improving throttle response, fuel efficiency, and idle quality. The marine-rated insulation prevents arcing, even in hot or humid engine compartments.\u003c\/p\u003e\n\u003cp data-start=\"1841\" data-end=\"2112\"\u003eThe snug-fitting boots lock out moisture and salt, keeping your connections clean and protected. Once installed, you’ll notice smoother acceleration, quicker starts, and a more confident pull when you open the throttle — proof that fresh spark makes all the difference.\u003c\/p\u003e\n\u003chr data-start=\"2114\" data-end=\"2117\"\u003e\n\u003ch3 data-start=\"2119\" data-end=\"2140\"\u003e\u003cstrong data-start=\"2123\" data-end=\"2138\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2141\" data-end=\"2478\"\u003eMercury’s OEM parts are designed for marine life — not just adapted from automotive parts. Every Quicksilver wire is tested for proper resistance, length, and flexibility to handle marine vibration and heat. Aftermarket wires often cut corners, using thinner insulation or incorrect core materials that lead to misfires and early wear.\u003c\/p\u003e\n\u003cp data-start=\"2480\" data-end=\"2686\"\u003eA \u003cstrong data-start=\"2482\" data-end=\"2514\"\u003egenuine Quicksilver wire kit\u003c\/strong\u003e gives you factory-quality fit and performance — the same spark your engine had when it rolled out new. It’s a small investment that keeps a classic motor running strong.\u003c\/p\u003e\n\u003chr data-start=\"2688\" data-end=\"2691\"\u003e\n\u003ch3 data-start=\"2693\" data-end=\"2706\"\u003e\u003cstrong data-start=\"2697\" data-end=\"2704\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2707\" data-end=\"2863\"\u003e\u003cstrong data-start=\"2707\" data-end=\"2761\"\u003eQ1: What engines use the Quicksilver 816761Q8 kit?\u003c\/strong\u003e\u003cbr data-start=\"2761\" data-end=\"2764\"\u003eA: It fits \u003cstrong data-start=\"2775\" data-end=\"2827\"\u003einline 6-cylinder MerCruiser engines (1963–1981)\u003c\/strong\u003e with \u003cstrong data-start=\"2833\" data-end=\"2860\"\u003epoints ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2865\" data-end=\"2991\"\u003e\u003cstrong data-start=\"2865\" data-end=\"2901\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"2901\" data-end=\"2904\"\u003eA: The kit includes \u003cstrong data-start=\"2924\" data-end=\"2948\"\u003esix spark plug wires\u003c\/strong\u003e, each cut to the correct factory length.\u003c\/p\u003e\n\u003cp data-start=\"2993\" data-end=\"3138\"\u003e\u003cstrong data-start=\"2993\" data-end=\"3032\"\u003eQ3: Can these be used in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3032\" data-end=\"3035\"\u003eA: Yes. The wires are built from corrosion-resistant materials made for both salt and freshwater use.\u003c\/p\u003e\n\u003cp data-start=\"3140\" data-end=\"3268\"\u003e\u003cstrong data-start=\"3140\" data-end=\"3170\"\u003eQ4: Is it easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3170\" data-end=\"3173\"\u003eA: Yes. Replace one wire at a time to maintain firing order — it’s a straightforward DIY job.\u003c\/p\u003e\n\u003cp data-start=\"3270\" data-end=\"3436\"\u003e\u003cstrong data-start=\"3270\" data-end=\"3309\"\u003eQ5: Why OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3309\" data-end=\"3312\"\u003eA: OEM wires guarantee perfect fit, correct resistance, and marine-ready materials that last far longer than generic sets.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069112099,"sku":"84-816761Q8","price":71.14,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q8_main.jpg?v=1760631228"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-v-6-229-engines-with-conventional-points-ignition-84-816761q7","title":"Mercury – Quicksilver 816761Q7 Spark Plug Wire Kit | V6 MerCruiser Engines (229 CID) | Points Ignition | 816761Q7","description":"\u003cp data-start=\"0\" data-end=\"119\"\u003e\u003cstrong data-start=\"0\" data-end=\"117\"\u003eMercury – Quicksilver 816761Q7 Spark Plug Wire Kit | V6 MerCruiser Engines (229 CID) | Points Ignition | 816761Q7\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"121\" data-end=\"124\"\u003e\n\u003ch3 data-start=\"126\" data-end=\"144\"\u003e\u003cstrong data-start=\"130\" data-end=\"142\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"145\" data-end=\"566\"\u003eIf your old MerCruiser V6 is starting rough or missing under load, weak plug wires might be the culprit. The \u003cstrong data-start=\"254\" data-end=\"298\"\u003eQuicksilver 816761Q7 Spark Plug Wire Kit\u003c\/strong\u003e gives your \u003cstrong data-start=\"310\" data-end=\"351\"\u003e229 CID MerCruiser engine (1983–1984)\u003c\/strong\u003e the spark energy it needs for smoother running and stronger performance. Designed for \u003cstrong data-start=\"438\" data-end=\"478\"\u003econventional points ignition systems\u003c\/strong\u003e, this OEM wire set restores clean ignition and reliability in classic marine engines.\u003c\/p\u003e\n\u003cp data-start=\"568\" data-end=\"823\"\u003eEach wire is cut to the right length and fitted with molded boots that seal tightly to block out water and salt. Built from tough, marine-rated materials, these wires are made to handle years of vibration, heat, and moisture without losing conductivity.\u003c\/p\u003e\n\u003chr data-start=\"825\" data-end=\"828\"\u003e\n\u003ch3 data-start=\"830\" data-end=\"852\"\u003e\u003cstrong data-start=\"834\" data-end=\"850\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"855\" data-end=\"931\"\u003e\n\u003cstrong data-start=\"855\" data-end=\"867\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or cracked wires to restore strong, even spark.\u003c\/li\u003e\n\u003cli data-start=\"934\" data-end=\"1032\"\u003e\n\u003cstrong data-start=\"934\" data-end=\"946\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"951\" data-end=\"996\"\u003eV6 MerCruiser 229 CID engines (1983–1984)\u003c\/strong\u003e with \u003cstrong data-start=\"1002\" data-end=\"1029\"\u003epoints ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1035\" data-end=\"1138\"\u003e\n\u003cstrong data-start=\"1035\" data-end=\"1052\"\u003eKit Contents:\u003c\/strong\u003e \u003cstrong data-start=\"1053\" data-end=\"1077\"\u003eSix spark plug wires\u003c\/strong\u003e with molded plug-end boots for moisture-tight connections.\u003c\/li\u003e\n\u003cli data-start=\"1141\" data-end=\"1226\"\u003e\n\u003cstrong data-start=\"1141\" data-end=\"1152\"\u003eDesign:\u003c\/strong\u003e Factory-length leads ensure the correct routing and clean installation.\u003c\/li\u003e\n\u003cli data-start=\"1229\" data-end=\"1333\"\u003e\n\u003cstrong data-start=\"1229\" data-end=\"1244\"\u003eDurability:\u003c\/strong\u003e Built to resist \u003cstrong data-start=\"1261\" data-end=\"1302\"\u003emarine heat, vibration, and corrosion\u003c\/strong\u003e for dependable service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1335\" data-end=\"1338\"\u003e\n\u003ch3 data-start=\"1340\" data-end=\"1377\"\u003e\u003cstrong data-start=\"1344\" data-end=\"1375\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1380\" data-end=\"1441\"\u003e229 CID (3.8L) V6 MerCruiser engines, model years 1983–1984\u003c\/li\u003e\n\u003cli data-start=\"1444\" data-end=\"1482\"\u003eConventional points ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1485\" data-end=\"1554\"\u003eCommon on older cruisers, ski boats, and vintage stern-drive setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1556\" data-end=\"1559\"\u003e\n\u003ch3 data-start=\"1561\" data-end=\"1603\"\u003e\u003cstrong data-start=\"1565\" data-end=\"1601\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1604\" data-end=\"1965\"\u003eA fresh set of plug wires can make a world of difference in how your boat runs. The \u003cstrong data-start=\"1688\" data-end=\"1700\"\u003e816761Q7\u003c\/strong\u003e kit delivers solid spark voltage to every cylinder, improving throttle response, fuel economy, and startup reliability. Low-resistance wire cores maintain clean energy flow, while the thick insulation prevents arcing or interference even in high-heat conditions.\u003c\/p\u003e\n\u003cp data-start=\"1967\" data-end=\"2209\"\u003eEach molded boot locks securely to the plug, keeping out water and salt that can corrode terminals. Once installed, you’ll notice smoother idle, easier starts, and stronger pull under throttle — proof that small parts can have a big impact.\u003c\/p\u003e\n\u003chr data-start=\"2211\" data-end=\"2214\"\u003e\n\u003ch3 data-start=\"2216\" data-end=\"2237\"\u003e\u003cstrong data-start=\"2220\" data-end=\"2235\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2238\" data-end=\"2523\"\u003eMercury’s OEM wire sets are designed specifically for marine use — engineered to handle constant vibration, salt exposure, and heat cycles. Aftermarket wires might fit, but they often lack the insulation quality or precise resistance that older engines need to perform at their best.\u003c\/p\u003e\n\u003cp data-start=\"2525\" data-end=\"2739\"\u003eA \u003cstrong data-start=\"2527\" data-end=\"2554\"\u003egenuine Quicksilver kit\u003c\/strong\u003e ensures the correct fit, dependable spark delivery, and long life. It’s the same standard Mercury used when your engine was new, built for years of reliable performance on the water.\u003c\/p\u003e\n\u003chr data-start=\"2741\" data-end=\"2744\"\u003e\n\u003ch3 data-start=\"2746\" data-end=\"2759\"\u003e\u003cstrong data-start=\"2750\" data-end=\"2757\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2760\" data-end=\"2916\"\u003e\u003cstrong data-start=\"2760\" data-end=\"2814\"\u003eQ1: What engines fit the Quicksilver 816761Q7 kit?\u003c\/strong\u003e\u003cbr data-start=\"2814\" data-end=\"2817\"\u003eA: It fits \u003cstrong data-start=\"2828\" data-end=\"2868\"\u003eV6 MerCruiser 229 CID (3.8L) engines\u003c\/strong\u003e with \u003cstrong data-start=\"2874\" data-end=\"2913\"\u003epoints ignition systems (1983–1984)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2918\" data-end=\"3045\"\u003e\u003cstrong data-start=\"2918\" data-end=\"2942\"\u003eQ2: What’s included?\u003c\/strong\u003e\u003cbr data-start=\"2942\" data-end=\"2945\"\u003eA: A \u003cstrong data-start=\"2950\" data-end=\"2990\"\u003ecomplete set of six spark plug wires\u003c\/strong\u003e, each with molded plug boots for secure connections.\u003c\/p\u003e\n\u003cp data-start=\"3047\" data-end=\"3188\"\u003e\u003cstrong data-start=\"3047\" data-end=\"3084\"\u003eQ3: Can I use these in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3084\" data-end=\"3087\"\u003eA: Yes. They’re made from marine-grade materials that resist corrosion in both fresh and saltwater.\u003c\/p\u003e\n\u003cp data-start=\"3190\" data-end=\"3320\"\u003e\u003cstrong data-start=\"3190\" data-end=\"3221\"\u003eQ4: Is installation simple?\u003c\/strong\u003e\u003cbr data-start=\"3221\" data-end=\"3224\"\u003eA: Yes. Replace the wires one by one to keep firing order correct — no special tools required.\u003c\/p\u003e\n\u003cp data-start=\"3322\" data-end=\"3506\"\u003e\u003cstrong data-start=\"3322\" data-end=\"3362\"\u003eQ5: Why choose OEM over aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3362\" data-end=\"3365\"\u003eA: OEM wires provide exact fit and performance tested for marine conditions, while aftermarket options often wear out faster or fit poorly.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069144867,"sku":"84-816761Q7","price":71.28,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q7_main.jpg?v=1760631248"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-4-cylinder-engines-with-conventional-points-ignition-84-816761q5","title":"Mercury – Quicksilver 816761Q5 Spark Plug Wire Kit | 4-Cylinder MerCruiser Engines | Points Ignition | 816761Q5","description":"\u003cp data-start=\"0\" data-end=\"117\"\u003e\u003cstrong data-start=\"0\" data-end=\"115\"\u003eMercury – Quicksilver 816761Q5 Spark Plug Wire Kit | 4-Cylinder MerCruiser Engines | Points Ignition | 816761Q5\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"119\" data-end=\"122\"\u003e\n\u003ch3 data-start=\"124\" data-end=\"142\"\u003e\u003cstrong data-start=\"128\" data-end=\"140\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"143\" data-end=\"426\"\u003eIf your old MerCruiser hesitates when you turn the key or idles rough after warm-up, it’s probably time for new plug wires. The \u003cstrong data-start=\"271\" data-end=\"315\"\u003eQuicksilver 816761Q5 Spark Plug Wire Kit\u003c\/strong\u003e gives your \u003cstrong data-start=\"327\" data-end=\"364\"\u003e4-cylinder MerCruiser (1963–1995)\u003c\/strong\u003e the clean, consistent spark it needs to run like it should.\u003c\/p\u003e\n\u003cp data-start=\"428\" data-end=\"699\"\u003eBuilt for \u003cstrong data-start=\"438\" data-end=\"471\"\u003epoints-style ignition systems\u003c\/strong\u003e, these OEM wires fit exactly as the originals did. Each lead is cut to length and tipped with snug molded boots that keep out moisture and corrosion. It’s an easy upgrade that can wake up an older motor in a single afternoon.\u003c\/p\u003e\n\u003chr data-start=\"701\" data-end=\"704\"\u003e\n\u003ch3 data-start=\"706\" data-end=\"728\"\u003e\u003cstrong data-start=\"710\" data-end=\"726\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"731\" data-end=\"821\"\u003e\n\u003cstrong data-start=\"731\" data-end=\"743\"\u003ePurpose:\u003c\/strong\u003e Replaces worn wires to restore strong ignition and reliable spark delivery.\u003c\/li\u003e\n\u003cli data-start=\"824\" data-end=\"927\"\u003e\n\u003cstrong data-start=\"824\" data-end=\"836\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"841\" data-end=\"886\"\u003e4-cylinder MerCruiser engines (1963–1995)\u003c\/strong\u003e with \u003cstrong data-start=\"892\" data-end=\"924\"\u003econventional points ignition\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"930\" data-end=\"1026\"\u003e\n\u003cstrong data-start=\"930\" data-end=\"947\"\u003eComplete Kit:\u003c\/strong\u003e Includes \u003cstrong data-start=\"957\" data-end=\"976\"\u003efour plug wires\u003c\/strong\u003e, each with molded boots at the spark-plug ends.\u003c\/li\u003e\n\u003cli data-start=\"1029\" data-end=\"1130\"\u003e\n\u003cstrong data-start=\"1029\" data-end=\"1046\"\u003eMarine-Tough:\u003c\/strong\u003e Flexible insulation stands up to \u003cstrong data-start=\"1080\" data-end=\"1110\"\u003eheat, vibration, and spray\u003c\/strong\u003e without cracking.\u003c\/li\u003e\n\u003cli data-start=\"1133\" data-end=\"1239\"\u003e\n\u003cstrong data-start=\"1133\" data-end=\"1149\"\u003eOEM Quality:\u003c\/strong\u003e Built and tested to \u003cstrong data-start=\"1170\" data-end=\"1201\"\u003eMercury’s factory standards\u003c\/strong\u003e for fit, resistance, and longevity.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1241\" data-end=\"1244\"\u003e\n\u003ch3 data-start=\"1246\" data-end=\"1283\"\u003e\u003cstrong data-start=\"1250\" data-end=\"1281\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1286\" data-end=\"1353\"\u003eAll 4-cylinder MerCruiser sterndrives and inboards from 1963–1995\u003c\/li\u003e\n\u003cli data-start=\"1356\" data-end=\"1420\"\u003eCommon on classic bowriders, small cruisers, and fishing boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1422\" data-end=\"1425\"\u003e\n\u003ch3 data-start=\"1427\" data-end=\"1469\"\u003e\u003cstrong data-start=\"1431\" data-end=\"1467\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1470\" data-end=\"1813\"\u003eNew wires mean a stronger, cleaner spark — and that shows up right away in how your engine runs. The \u003cstrong data-start=\"1571\" data-end=\"1583\"\u003e816761Q5\u003c\/strong\u003e kit helps eliminate misfires, hard starts, and sluggish throttle. Each wire’s low-resistance core delivers full voltage to every cylinder, while the thick insulation keeps that spark from bleeding off through heat or vibration.\u003c\/p\u003e\n\u003cp data-start=\"1815\" data-end=\"2078\"\u003eThe molded boots stay tight on the plugs and distributor, sealing out water and grime that can cause weak spark or corrosion. Once installed, you’ll notice easier starts, steadier idle, and better fuel economy — proof that small fixes can make a big difference.\u003c\/p\u003e\n\u003chr data-start=\"2080\" data-end=\"2083\"\u003e\n\u003ch3 data-start=\"2085\" data-end=\"2106\"\u003e\u003cstrong data-start=\"2089\" data-end=\"2104\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2107\" data-end=\"2369\"\u003eMarine engines live tougher lives than car motors. Constant moisture, heat, and motion eat away at cheap aftermarket parts. Mercury’s OEM wire sets are built from the right materials and sized exactly for your drive, so they fit perfectly and last for seasons.\u003c\/p\u003e\n\u003cp data-start=\"2371\" data-end=\"2534\"\u003eA \u003cstrong data-start=\"2373\" data-end=\"2405\"\u003egenuine Quicksilver wire kit\u003c\/strong\u003e is the sure way to get the same reliability your MerCruiser had when it was new — no guessing, no trimming, no early failures.\u003c\/p\u003e\n\u003chr data-start=\"2536\" data-end=\"2539\"\u003e\n\u003ch3 data-start=\"2541\" data-end=\"2554\"\u003e\u003cstrong data-start=\"2545\" data-end=\"2552\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2555\" data-end=\"2680\"\u003e\u003cstrong data-start=\"2555\" data-end=\"2589\"\u003eQ1: What engines fit this kit?\u003c\/strong\u003e\u003cbr data-start=\"2589\" data-end=\"2592\"\u003eA: All \u003cstrong data-start=\"2599\" data-end=\"2644\"\u003e4-cylinder MerCruiser engines (1963–1995)\u003c\/strong\u003e with \u003cstrong data-start=\"2650\" data-end=\"2677\"\u003epoints ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2682\" data-end=\"2792\"\u003e\u003cstrong data-start=\"2682\" data-end=\"2706\"\u003eQ2: What’s included?\u003c\/strong\u003e\u003cbr data-start=\"2706\" data-end=\"2709\"\u003eA: Four pre-cut spark plug wires with molded ends for quick, secure installation.\u003c\/p\u003e\n\u003cp data-start=\"2794\" data-end=\"2916\"\u003e\u003cstrong data-start=\"2794\" data-end=\"2833\"\u003eQ3: Will they hold up in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2833\" data-end=\"2836\"\u003eA: Yes. The insulation and connectors are designed for salt or freshwater use.\u003c\/p\u003e\n\u003cp data-start=\"2918\" data-end=\"3064\"\u003e\u003cstrong data-start=\"2918\" data-end=\"2952\"\u003eQ4: Can I install them myself?\u003c\/strong\u003e\u003cbr data-start=\"2952\" data-end=\"2955\"\u003eA: Definitely. Just replace one wire at a time to keep the firing order straight — no special tools needed.\u003c\/p\u003e\n\u003cp data-start=\"3066\" data-end=\"3251\"\u003e\u003cstrong data-start=\"3066\" data-end=\"3107\"\u003eQ5: Why OEM instead of generic wires?\u003c\/strong\u003e\u003cbr data-start=\"3107\" data-end=\"3110\"\u003eA: OEM wires match Mercury’s specs for length and resistance, giving longer life and reliable spark that aftermarket versions rarely match.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069177635,"sku":"84-816761Q5","price":51.74,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q5_main.jpg?v=1760631223"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-mcm-3-0l-lx-with-delco-est-ignition-84-816761q14","title":"Mercury – Quicksilver 816761Q14 Spark Plug Wire Kit | 3.0L \u0026 LX MerCruiser Engines | Delco EST Ignition | 816761Q14","description":"\u003cp data-start=\"0\" data-end=\"121\"\u003e\u003cstrong data-start=\"0\" data-end=\"119\"\u003eMercury – Quicksilver 816761Q14 Spark Plug Wire Kit | 3.0L \u0026amp; LX MerCruiser Engines | Delco EST Ignition | 816761Q14\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"123\" data-end=\"126\"\u003e\n\u003ch3 data-start=\"128\" data-end=\"146\"\u003e\u003cstrong data-start=\"132\" data-end=\"144\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"147\" data-end=\"527\"\u003eA strong, steady spark is what keeps your MerCruiser engine running smooth and dependable. The \u003cstrong data-start=\"242\" data-end=\"287\"\u003eQuicksilver 816761Q14 Spark Plug Wire Kit\u003c\/strong\u003e is built for \u003cstrong data-start=\"301\" data-end=\"347\"\u003e3.0L and LX MerCruiser engines (1990–2016)\u003c\/strong\u003e equipped with \u003cstrong data-start=\"362\" data-end=\"392\"\u003eDelco EST ignition systems\u003c\/strong\u003e. This OEM wire set restores reliable spark delivery, cleaner ignition, and the long-lasting durability that Mercury owners count on.\u003c\/p\u003e\n\u003cp data-start=\"529\" data-end=\"757\"\u003eEach wire is precision-cut for the correct plug reach and fitted with molded boots that lock snugly in place. The insulation is marine-grade — built to handle the heat, vibration, and moisture that come with life on the water.\u003c\/p\u003e\n\u003chr data-start=\"759\" data-end=\"762\"\u003e\n\u003ch3 data-start=\"764\" data-end=\"786\"\u003e\u003cstrong data-start=\"768\" data-end=\"784\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"789\" data-end=\"887\"\u003e\n\u003cstrong data-start=\"789\" data-end=\"801\"\u003ePurpose:\u003c\/strong\u003e Replaces aging or corroded spark plug wires to restore proper ignition performance.\u003c\/li\u003e\n\u003cli data-start=\"890\" data-end=\"992\"\u003e\n\u003cstrong data-start=\"890\" data-end=\"902\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"907\" data-end=\"953\"\u003e3.0L and LX MerCruiser engines (1990–2016)\u003c\/strong\u003e with \u003cstrong data-start=\"959\" data-end=\"989\"\u003eDelco EST ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"995\" data-end=\"1087\"\u003e\n\u003cstrong data-start=\"995\" data-end=\"1012\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1022\" data-end=\"1049\"\u003eset of spark plug wires\u003c\/strong\u003e with molded boots on each plug end.\u003c\/li\u003e\n\u003cli data-start=\"1090\" data-end=\"1190\"\u003e\n\u003cstrong data-start=\"1090\" data-end=\"1101\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1115\" data-end=\"1151\"\u003etailored for exact plug location\u003c\/strong\u003e, ensuring a neat, factory-style fit.\u003c\/li\u003e\n\u003cli data-start=\"1193\" data-end=\"1299\"\u003e\n\u003cstrong data-start=\"1193\" data-end=\"1208\"\u003eDurability:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"1222\" data-end=\"1242\"\u003emarine endurance\u003c\/strong\u003e — resistant to heat, vibration, and moisture exposure.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1301\" data-end=\"1304\"\u003e\n\u003ch3 data-start=\"1306\" data-end=\"1343\"\u003e\u003cstrong data-start=\"1310\" data-end=\"1341\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1346\" data-end=\"1390\"\u003e3.0L and LX MerCruiser engines (1990–2016)\u003c\/li\u003e\n\u003cli data-start=\"1393\" data-end=\"1421\"\u003eDelco EST ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1424\" data-end=\"1491\"\u003eFound on popular runabouts, bowriders, and inboard\/outboard boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1493\" data-end=\"1496\"\u003e\n\u003ch3 data-start=\"1498\" data-end=\"1540\"\u003e\u003cstrong data-start=\"1502\" data-end=\"1538\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1541\" data-end=\"1836\"\u003eThe \u003cstrong data-start=\"1545\" data-end=\"1567\"\u003e816761Q14 wire kit\u003c\/strong\u003e brings your ignition system back to factory performance. Low-resistance cores deliver consistent spark energy for smooth idle, strong acceleration, and easy starting. When your engine’s firing evenly, you’ll feel sharper throttle response and better fuel efficiency.\u003c\/p\u003e\n\u003cp data-start=\"1838\" data-end=\"2113\"\u003eThe heavy-duty insulation holds up to years of marine use — it won’t crack, dry out, or let moisture in. Each wire’s length matches the engine layout perfectly, so installation is simple and tidy. Just replace one wire at a time, and you’ll be back on the water in no time.\u003c\/p\u003e\n\u003chr data-start=\"2115\" data-end=\"2118\"\u003e\n\u003ch3 data-start=\"2120\" data-end=\"2141\"\u003e\u003cstrong data-start=\"2124\" data-end=\"2139\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2142\" data-end=\"2383\"\u003eMercury’s OEM ignition wires are made for the marine world — not repurposed from automotive designs. Every wire is tested for proper resistance, durability, and flexibility to handle the constant motion and heat of your engine compartment.\u003c\/p\u003e\n\u003cp data-start=\"2385\" data-end=\"2631\"\u003eAftermarket wire sets can be hit or miss, often using cheaper insulation or incorrect lengths that cause fit issues. With \u003cstrong data-start=\"2507\" data-end=\"2536\"\u003egenuine Quicksilver parts\u003c\/strong\u003e, you’re getting the same precision and reliability your engine had when it left the factory.\u003c\/p\u003e\n\u003chr data-start=\"2633\" data-end=\"2636\"\u003e\n\u003ch3 data-start=\"2638\" data-end=\"2651\"\u003e\u003cstrong data-start=\"2642\" data-end=\"2649\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2652\" data-end=\"2807\"\u003e\u003cstrong data-start=\"2652\" data-end=\"2708\"\u003eQ1: Which engines fit the Quicksilver 816761Q14 kit?\u003c\/strong\u003e\u003cbr data-start=\"2708\" data-end=\"2711\"\u003eA: It fits \u003cstrong data-start=\"2722\" data-end=\"2768\"\u003e3.0L and LX MerCruiser engines (1990–2016)\u003c\/strong\u003e with \u003cstrong data-start=\"2774\" data-end=\"2804\"\u003eDelco EST ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2809\" data-end=\"2947\"\u003e\u003cstrong data-start=\"2809\" data-end=\"2848\"\u003eQ2: How many wires come in the kit?\u003c\/strong\u003e\u003cbr data-start=\"2848\" data-end=\"2851\"\u003eA: The kit includes a \u003cstrong data-start=\"2873\" data-end=\"2909\"\u003ecomplete set of spark plug wires\u003c\/strong\u003e, each pre-fitted with molded boots.\u003c\/p\u003e\n\u003cp data-start=\"2949\" data-end=\"3123\"\u003e\u003cstrong data-start=\"2949\" data-end=\"2990\"\u003eQ3: Can these wires handle saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2990\" data-end=\"2993\"\u003eA: Yes. They’re made with corrosion-resistant terminals and marine-grade insulation designed for salt and freshwater conditions.\u003c\/p\u003e\n\u003cp data-start=\"3125\" data-end=\"3260\"\u003e\u003cstrong data-start=\"3125\" data-end=\"3158\"\u003eQ4: Are they easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3158\" data-end=\"3161\"\u003eA: Very. Replace one wire at a time to keep the firing order correct — no special tools required.\u003c\/p\u003e\n\u003cp data-start=\"3262\" data-end=\"3442\"\u003e\u003cstrong data-start=\"3262\" data-end=\"3304\"\u003eQ5: Why choose OEM over generic wires?\u003c\/strong\u003e\u003cbr data-start=\"3304\" data-end=\"3307\"\u003eA: OEM wires ensure perfect fit, correct resistance, and marine-grade durability — aftermarket versions can’t match that consistency.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069243171,"sku":"84-816761Q14","price":52.38,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q14_main.jpg?v=1760631230"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-v-8-305-350-cid-engines-with-thunderbolt-iv-ignition-84-816761q3","title":"Mercury – Quicksilver 816761Q3 Spark Plug Wire Kit | V8 GM MerCruiser (RH) Engines (305 \u0026 350 CID) | Thunderbolt IV Ignition | 816761Q3","description":"\u003cp data-start=\"0\" data-end=\"141\"\u003e\u003cstrong data-start=\"0\" data-end=\"139\"\u003eMercury – Quicksilver 816761Q3 Spark Plug Wire Kit | V8 GM MerCruiser (RH) Engines (305 \u0026amp; 350 CID) | Thunderbolt IV Ignition | 816761Q3\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"143\" data-end=\"146\"\u003e\n\u003ch3 data-start=\"148\" data-end=\"166\"\u003e\u003cstrong data-start=\"152\" data-end=\"164\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"167\" data-end=\"461\"\u003eWhen your engine fires clean and smooth, you can feel the difference right away. The \u003cstrong data-start=\"252\" data-end=\"296\"\u003eQuicksilver 816761Q3 Spark Plug Wire Kit\u003c\/strong\u003e brings that performance back to your \u003cstrong data-start=\"334\" data-end=\"396\"\u003eV8 right-hand rotation MerCruiser engine (305 and 350 CID)\u003c\/strong\u003e equipped with \u003cstrong data-start=\"411\" data-end=\"458\"\u003eThunderbolt IV ignition systems (1981–1993)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"463\" data-end=\"810\"\u003eThis OEM kit includes a full set of plug wires built to factory specifications — the right length, resistance, and fit for your motor. Each wire features marine-grade insulation to handle the heat, vibration, and moisture that come with boating life. Swap them in, and your MerCruiser will fire stronger, idle smoother, and run more efficiently.\u003c\/p\u003e\n\u003chr data-start=\"812\" data-end=\"815\"\u003e\n\u003ch3 data-start=\"817\" data-end=\"839\"\u003e\u003cstrong data-start=\"821\" data-end=\"837\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"842\" data-end=\"935\"\u003e\n\u003cstrong data-start=\"842\" data-end=\"854\"\u003ePurpose:\u003c\/strong\u003e Replaces aging or damaged wires to restore proper ignition and spark strength.\u003c\/li\u003e\n\u003cli data-start=\"938\" data-end=\"1086\"\u003e\n\u003cstrong data-start=\"938\" data-end=\"950\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"955\" data-end=\"1030\"\u003eV8 RH (right-hand rotation) GM-based MerCruiser engines (305 \u0026amp; 350 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"1036\" data-end=\"1083\"\u003eThunderbolt IV ignition systems (1981–1993)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1089\" data-end=\"1181\"\u003e\n\u003cstrong data-start=\"1089\" data-end=\"1106\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1116\" data-end=\"1143\"\u003eset of spark plug wires\u003c\/strong\u003e, each pre-fitted with molded boots.\u003c\/li\u003e\n\u003cli data-start=\"1184\" data-end=\"1266\"\u003e\n\u003cstrong data-start=\"1184\" data-end=\"1195\"\u003eDesign:\u003c\/strong\u003e \u003cstrong data-start=\"1196\" data-end=\"1220\"\u003eFactory-length wires\u003c\/strong\u003e ensure clean routing and proper plug reach.\u003c\/li\u003e\n\u003cli data-start=\"1269\" data-end=\"1353\"\u003e\n\u003cstrong data-start=\"1269\" data-end=\"1284\"\u003eDurability:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"1298\" data-end=\"1350\"\u003emarine heat, vibration, and corrosion resistance\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1355\" data-end=\"1358\"\u003e\n\u003ch3 data-start=\"1360\" data-end=\"1397\"\u003e\u003cstrong data-start=\"1364\" data-end=\"1395\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1400\" data-end=\"1461\"\u003eGM-based MerCruiser V8 engines (305 \u0026amp; 350 CID, RH rotation)\u003c\/li\u003e\n\u003cli data-start=\"1464\" data-end=\"1509\"\u003eThunderbolt IV ignition systems (1981–1993)\u003c\/li\u003e\n\u003cli data-start=\"1512\" data-end=\"1563\"\u003eCommon in cruisers, inboards, and sport runabouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1565\" data-end=\"1568\"\u003e\n\u003ch3 data-start=\"1570\" data-end=\"1612\"\u003e\u003cstrong data-start=\"1574\" data-end=\"1610\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1613\" data-end=\"1932\"\u003eThe \u003cstrong data-start=\"1617\" data-end=\"1629\"\u003e816761Q3\u003c\/strong\u003e wire kit helps your ignition system deliver strong, consistent voltage to every plug. The result? Easier starts, smoother idle, and clean acceleration across the power band. The low-resistance cores maintain voltage integrity, while the thick insulation prevents arcing even under heat and vibration.\u003c\/p\u003e\n\u003cp data-start=\"1934\" data-end=\"2148\"\u003eEach wire is molded for a tight seal at both ends, keeping moisture and debris out. Once installed, you’ll enjoy reliable spark energy and confident performance — the kind you can feel every time you throttle up.\u003c\/p\u003e\n\u003chr data-start=\"2150\" data-end=\"2153\"\u003e\n\u003ch3 data-start=\"2155\" data-end=\"2176\"\u003e\u003cstrong data-start=\"2159\" data-end=\"2174\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2177\" data-end=\"2421\"\u003eMercury’s OEM ignition components are made for the marine environment — not adapted from automotive designs. Every Quicksilver wire is tested for length, resistance, and flexibility to ensure consistent ignition under harsh marine conditions.\u003c\/p\u003e\n\u003cp data-start=\"2423\" data-end=\"2709\"\u003eAftermarket wires can vary in size or material quality, leading to misfires or premature failure. With a \u003cstrong data-start=\"2528\" data-end=\"2560\"\u003egenuine Quicksilver wire kit\u003c\/strong\u003e, you’re getting the same durability, fit, and spark performance your engine was designed for — tested and proven in real-world boating conditions.\u003c\/p\u003e\n\u003chr data-start=\"2711\" data-end=\"2714\"\u003e\n\u003ch3 data-start=\"2716\" data-end=\"2729\"\u003e\u003cstrong data-start=\"2720\" data-end=\"2727\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2730\" data-end=\"2934\"\u003e\u003cstrong data-start=\"2730\" data-end=\"2784\"\u003eQ1: What engines fit the Quicksilver 816761Q3 kit?\u003c\/strong\u003e\u003cbr data-start=\"2784\" data-end=\"2787\"\u003eA: It’s designed for \u003cstrong data-start=\"2808\" data-end=\"2878\"\u003eV8 right-hand rotation GM-based MerCruiser engines (305 \u0026amp; 350 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"2884\" data-end=\"2931\"\u003eThunderbolt IV ignition systems (1981–1993)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2936\" data-end=\"3064\"\u003e\u003cstrong data-start=\"2936\" data-end=\"2972\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"2972\" data-end=\"2975\"\u003eA: The kit includes \u003cstrong data-start=\"2995\" data-end=\"3021\"\u003eeight spark plug wires\u003c\/strong\u003e, each cut to the correct factory length.\u003c\/p\u003e\n\u003cp data-start=\"3066\" data-end=\"3216\"\u003e\u003cstrong data-start=\"3066\" data-end=\"3111\"\u003eQ3: Can these wires handle saltwater use?\u003c\/strong\u003e\u003cbr data-start=\"3111\" data-end=\"3114\"\u003eA: Yes. They’re made from corrosion-resistant materials suitable for both salt and freshwater boats.\u003c\/p\u003e\n\u003cp data-start=\"3218\" data-end=\"3342\"\u003e\u003cstrong data-start=\"3218\" data-end=\"3251\"\u003eQ4: Are they easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3251\" data-end=\"3254\"\u003eA: Yes. Replace one wire at a time to maintain firing order — no special tools needed.\u003c\/p\u003e\n\u003cp data-start=\"3344\" data-end=\"3505\"\u003e\u003cstrong data-start=\"3344\" data-end=\"3377\"\u003eQ5: Why OEM over aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3377\" data-end=\"3380\"\u003eA: OEM wires guarantee the right resistance, length, and marine-ready materials for long-lasting, trouble-free performance.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069308707,"sku":"84-816761Q3","price":81.61,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q3_main.jpg?v=1760631230"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-v-8-305-350-cid-engines-with-thunderbolt-iv-ignition-84-816761q4","title":"Mercury – Quicksilver 816761Q4 Spark Plug Wire Kit | V8 GM MerCruiser (LH) Engines (305 \u0026 350 CID) | Thunderbolt IV Ignition | 816761Q4","description":"\u003cp data-start=\"0\" data-end=\"141\"\u003e\u003cstrong data-start=\"0\" data-end=\"139\"\u003eMercury – Quicksilver 816761Q4 Spark Plug Wire Kit | V8 GM MerCruiser (LH) Engines (305 \u0026amp; 350 CID) | Thunderbolt IV Ignition | 816761Q4\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"143\" data-end=\"146\"\u003e\n\u003ch3 data-start=\"148\" data-end=\"166\"\u003e\u003cstrong data-start=\"152\" data-end=\"164\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"167\" data-end=\"446\"\u003eWhen your boat starts instantly and runs smooth, that’s good spark at work. The \u003cstrong data-start=\"247\" data-end=\"291\"\u003eQuicksilver 816761Q4 Spark Plug Wire Kit\u003c\/strong\u003e keeps that spark steady in \u003cstrong data-start=\"319\" data-end=\"381\"\u003eV8 left-hand rotation MerCruiser engines (305 and 350 CID)\u003c\/strong\u003e equipped with \u003cstrong data-start=\"396\" data-end=\"443\"\u003eThunderbolt IV ignition systems (1981–1992)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"448\" data-end=\"746\"\u003eEach wire in this OEM kit is built to exact Mercury specs — the right length, perfect resistance, and tight-fitting boots that keep moisture out. Made for life on the water, these wires hold up to heat, salt, and vibration, giving your engine a strong, consistent spark every time you fire it up.\u003c\/p\u003e\n\u003chr data-start=\"748\" data-end=\"751\"\u003e\n\u003ch3 data-start=\"753\" data-end=\"775\"\u003e\u003cstrong data-start=\"757\" data-end=\"773\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"778\" data-end=\"863\"\u003e\n\u003cstrong data-start=\"778\" data-end=\"790\"\u003ePurpose:\u003c\/strong\u003e Replaces old or worn plug wires to restore clean, consistent ignition.\u003c\/li\u003e\n\u003cli data-start=\"866\" data-end=\"1001\"\u003e\n\u003cstrong data-start=\"866\" data-end=\"878\"\u003eFitment:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"892\" data-end=\"945\"\u003eV8 LH GM-based MerCruiser engines (305 \u0026amp; 350 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"951\" data-end=\"998\"\u003eThunderbolt IV ignition systems (1981–1992)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1004\" data-end=\"1119\"\u003e\n\u003cstrong data-start=\"1004\" data-end=\"1021\"\u003eKit Contents:\u003c\/strong\u003e \u003cstrong data-start=\"1022\" data-end=\"1048\"\u003eEight spark plug wires\u003c\/strong\u003e with molded plug-end boots for a secure, water-resistant connection.\u003c\/li\u003e\n\u003cli data-start=\"1122\" data-end=\"1222\"\u003e\n\u003cstrong data-start=\"1122\" data-end=\"1133\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1147\" data-end=\"1165\"\u003efactory-length\u003c\/strong\u003e, cut precisely for the correct routing and plug reach.\u003c\/li\u003e\n\u003cli data-start=\"1225\" data-end=\"1339\"\u003e\n\u003cstrong data-start=\"1225\" data-end=\"1247\"\u003eMarine Durability:\u003c\/strong\u003e Engineered for \u003cstrong data-start=\"1263\" data-end=\"1307\"\u003eheat, moisture, and vibration resistance\u003c\/strong\u003e in tough marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1341\" data-end=\"1344\"\u003e\n\u003ch3 data-start=\"1346\" data-end=\"1383\"\u003e\u003cstrong data-start=\"1350\" data-end=\"1381\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1386\" data-end=\"1453\"\u003eLeft-hand rotation GM-based V8 MerCruiser engines (305 \u0026amp; 350 CID)\u003c\/li\u003e\n\u003cli data-start=\"1456\" data-end=\"1501\"\u003eThunderbolt IV ignition systems (1981–1992)\u003c\/li\u003e\n\u003cli data-start=\"1504\" data-end=\"1578\"\u003eCommon in sport cruisers, inboard\/outboard boats, and classic tow setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1580\" data-end=\"1583\"\u003e\n\u003ch3 data-start=\"1585\" data-end=\"1627\"\u003e\u003cstrong data-start=\"1589\" data-end=\"1625\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1628\" data-end=\"1923\"\u003eThe \u003cstrong data-start=\"1632\" data-end=\"1644\"\u003e816761Q4\u003c\/strong\u003e kit gives your ignition system a fresh start. The low-resistance cores keep spark voltage strong, ensuring smooth idle, quick starts, and crisp throttle response. Whether you’re idling through the marina or running at full plane, these wires keep every cylinder firing evenly.\u003c\/p\u003e\n\u003cp data-start=\"1925\" data-end=\"2229\"\u003eThe marine-grade insulation resists cracking and moisture, even after years of exposure. Each boot grips tight for a leak-free seal, so the spark energy goes where it’s supposed to — not lost to arcing or corrosion. You’ll feel smoother running and more consistent power from the first turn of the key.\u003c\/p\u003e\n\u003chr data-start=\"2231\" data-end=\"2234\"\u003e\n\u003ch3 data-start=\"2236\" data-end=\"2257\"\u003e\u003cstrong data-start=\"2240\" data-end=\"2255\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2258\" data-end=\"2522\"\u003eMercury’s OEM plug wires are built for the demands of marine engines — constant movement, salt exposure, and high operating temperatures. Aftermarket wires might fit, but they often use weaker insulation or generic resistance values that cause premature failure.\u003c\/p\u003e\n\u003cp data-start=\"2524\" data-end=\"2742\"\u003eA \u003cstrong data-start=\"2526\" data-end=\"2558\"\u003egenuine Quicksilver wire set\u003c\/strong\u003e gives you the right lengths, proper resistance, and long-lasting durability. It’s the same quality your engine was built with — tested, proven, and made to last season after season.\u003c\/p\u003e\n\u003chr data-start=\"2744\" data-end=\"2747\"\u003e\n\u003ch3 data-start=\"2749\" data-end=\"2762\"\u003e\u003cstrong data-start=\"2753\" data-end=\"2760\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2763\" data-end=\"2956\"\u003e\u003cstrong data-start=\"2763\" data-end=\"2817\"\u003eQ1: What engines fit the Quicksilver 816761Q4 kit?\u003c\/strong\u003e\u003cbr data-start=\"2817\" data-end=\"2820\"\u003eA: It fits \u003cstrong data-start=\"2831\" data-end=\"2900\"\u003eV8 left-hand rotation GM-based MerCruiser engines (305 \u0026amp; 350 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"2906\" data-end=\"2953\"\u003eThunderbolt IV ignition systems (1981–1992)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2958\" data-end=\"3080\"\u003e\u003cstrong data-start=\"2958\" data-end=\"2994\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"2994\" data-end=\"2997\"\u003eA: The kit includes \u003cstrong data-start=\"3017\" data-end=\"3043\"\u003eeight spark plug wires\u003c\/strong\u003e, all pre-fitted with molded boots.\u003c\/p\u003e\n\u003cp data-start=\"3082\" data-end=\"3220\"\u003e\u003cstrong data-start=\"3082\" data-end=\"3114\"\u003eQ3: Are they saltwater safe?\u003c\/strong\u003e\u003cbr data-start=\"3114\" data-end=\"3117\"\u003eA: Yes. The wires and terminals are built from corrosion-resistant materials designed for marine use.\u003c\/p\u003e\n\u003cp data-start=\"3222\" data-end=\"3352\"\u003e\u003cstrong data-start=\"3222\" data-end=\"3260\"\u003eQ4: How difficult is installation?\u003c\/strong\u003e\u003cbr data-start=\"3260\" data-end=\"3263\"\u003eA: Easy. Replace one wire at a time to maintain firing order — no special tools needed.\u003c\/p\u003e\n\u003cp data-start=\"3354\" data-end=\"3522\"\u003e\u003cstrong data-start=\"3354\" data-end=\"3393\"\u003eQ5: Why OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3393\" data-end=\"3396\"\u003eA: OEM wires fit perfectly, resist marine wear, and provide steady spark — aftermarket versions can’t match the consistency.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069341475,"sku":"84-816761Q4","price":77.79,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q4_main.jpg?v=1760631221"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-mie-5-7l-tow-sports-with-conventional-point-ignition-84-816761q12","title":"Mercury – Quicksilver 816761Q12 Spark Plug Wire Kit | V8 GM MerCruiser Tow Sports Engines (5.7L) | Points Ignition | 816761Q12","description":"\u003cp data-start=\"0\" data-end=\"132\"\u003e\u003cstrong data-start=\"0\" data-end=\"130\"\u003eMercury – Quicksilver 816761Q12 Spark Plug Wire Kit | V8 GM MerCruiser Tow Sports Engines (5.7L) | Points Ignition | 816761Q12\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"134\" data-end=\"137\"\u003e\n\u003ch3 data-start=\"139\" data-end=\"157\"\u003e\u003cstrong data-start=\"143\" data-end=\"155\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"158\" data-end=\"589\"\u003eA clean, strong spark is the difference between an engine that hesitates and one that roars to life. The \u003cstrong data-start=\"263\" data-end=\"308\"\u003eQuicksilver 816761Q12 Spark Plug Wire Kit\u003c\/strong\u003e keeps your \u003cstrong data-start=\"320\" data-end=\"369\"\u003eV8 5.7L GM-based MerCruiser Tow Sports engine\u003c\/strong\u003e firing reliably, whether you’re pulling a skier or cruising home at sunset. Designed for \u003cstrong data-start=\"459\" data-end=\"511\"\u003econventional points ignition systems (1985–1995)\u003c\/strong\u003e, this OEM set restores factory-quality ignition performance and durability.\u003c\/p\u003e\n\u003cp data-start=\"591\" data-end=\"884\"\u003eEach wire is precision-cut to the correct length for neat, stress-free routing. The molded boots seal tight against moisture and heat, while the marine-grade insulation protects against corrosion and cracking — giving your tow-sports boat the reliable ignition it needs for years of service.\u003c\/p\u003e\n\u003chr data-start=\"886\" data-end=\"889\"\u003e\n\u003ch3 data-start=\"891\" data-end=\"913\"\u003e\u003cstrong data-start=\"895\" data-end=\"911\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"916\" data-end=\"1006\"\u003e\n\u003cstrong data-start=\"916\" data-end=\"928\"\u003ePurpose:\u003c\/strong\u003e Replaces aging plug wires to restore steady, reliable ignition performance.\u003c\/li\u003e\n\u003cli data-start=\"1009\" data-end=\"1132\"\u003e\n\u003cstrong data-start=\"1009\" data-end=\"1021\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"1026\" data-end=\"1096\"\u003eV8 5.7L GM-based MerCruiser Tow Sports inboard engines (1985–1995)\u003c\/strong\u003e with \u003cstrong data-start=\"1102\" data-end=\"1129\"\u003epoints ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1135\" data-end=\"1225\"\u003e\n\u003cstrong data-start=\"1135\" data-end=\"1152\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1162\" data-end=\"1195\"\u003eset of eight spark plug wires\u003c\/strong\u003e with molded plug-end boots.\u003c\/li\u003e\n\u003cli data-start=\"1228\" data-end=\"1333\"\u003e\n\u003cstrong data-start=\"1228\" data-end=\"1239\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1253\" data-end=\"1290\"\u003ecut to the correct factory length\u003c\/strong\u003e for clean installation and proper reach.\u003c\/li\u003e\n\u003cli data-start=\"1336\" data-end=\"1451\"\u003e\n\u003cstrong data-start=\"1336\" data-end=\"1358\"\u003eMarine Durability:\u003c\/strong\u003e Engineered for \u003cstrong data-start=\"1374\" data-end=\"1418\"\u003eheat, moisture, and vibration resistance\u003c\/strong\u003e specific to marine conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1453\" data-end=\"1456\"\u003e\n\u003ch3 data-start=\"1458\" data-end=\"1495\"\u003e\u003cstrong data-start=\"1462\" data-end=\"1493\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1498\" data-end=\"1554\"\u003eV8 5.7L GM-based MerCruiser Tow Sports inboard engines\u003c\/li\u003e\n\u003cli data-start=\"1557\" data-end=\"1594\"\u003ePoints ignition systems (1985–1995)\u003c\/li\u003e\n\u003cli data-start=\"1597\" data-end=\"1660\"\u003eCommon in ski boats, wake boats, and inboard tow-sport setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1662\" data-end=\"1665\"\u003e\n\u003ch3 data-start=\"1667\" data-end=\"1709\"\u003e\u003cstrong data-start=\"1671\" data-end=\"1707\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1710\" data-end=\"2085\"\u003eThe \u003cstrong data-start=\"1714\" data-end=\"1736\"\u003e816761Q12 wire kit\u003c\/strong\u003e restores the kind of smooth, confident ignition your boat had when it was new. Each wire delivers consistent voltage to every plug, improving cold starts, idle quality, and throttle response. Low-resistance cores keep spark energy strong, while the rugged insulation ensures long life under the constant heat and vibration of a marine engine bay.\u003c\/p\u003e\n\u003cp data-start=\"2087\" data-end=\"2332\"\u003eWhen your tow boat is running long sets or idling between pulls, reliable spark means fewer misfires and cleaner performance. The pre-measured wires make installation quick and foolproof — just replace one wire at a time and you’re good to go.\u003c\/p\u003e\n\u003chr data-start=\"2334\" data-end=\"2337\"\u003e\n\u003ch3 data-start=\"2339\" data-end=\"2360\"\u003e\u003cstrong data-start=\"2343\" data-end=\"2358\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2361\" data-end=\"2663\"\u003eMercury’s OEM wires are built specifically for marine use — engineered for moisture protection, temperature extremes, and constant movement. Automotive wire sets can’t match that. Aftermarket options might look similar, but they often use lower-quality materials that wear out faster in salt or heat.\u003c\/p\u003e\n\u003cp data-start=\"2665\" data-end=\"2873\"\u003eA \u003cstrong data-start=\"2667\" data-end=\"2694\"\u003egenuine Quicksilver kit\u003c\/strong\u003e guarantees proper fit, correct resistance, and the durability Mercury engines are known for. It’s the same quality trusted by factory technicians and serious boat owners alike.\u003c\/p\u003e\n\u003chr data-start=\"2875\" data-end=\"2878\"\u003e\n\u003ch3 data-start=\"2880\" data-end=\"2893\"\u003e\u003cstrong data-start=\"2884\" data-end=\"2891\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2894\" data-end=\"3070\"\u003e\u003cstrong data-start=\"2894\" data-end=\"2950\"\u003eQ1: Which engines use the Quicksilver 816761Q12 kit?\u003c\/strong\u003e\u003cbr data-start=\"2950\" data-end=\"2953\"\u003eA: It fits \u003cstrong data-start=\"2964\" data-end=\"3034\"\u003eV8 5.7L GM-based MerCruiser Tow Sports inboard engines (1985–1995)\u003c\/strong\u003e with \u003cstrong data-start=\"3040\" data-end=\"3067\"\u003epoints ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3072\" data-end=\"3186\"\u003e\u003cstrong data-start=\"3072\" data-end=\"3102\"\u003eQ2: What comes in the kit?\u003c\/strong\u003e\u003cbr data-start=\"3102\" data-end=\"3105\"\u003eA: A full \u003cstrong data-start=\"3115\" data-end=\"3148\"\u003eset of eight spark plug wires\u003c\/strong\u003e, each pre-fitted with molded boots.\u003c\/p\u003e\n\u003cp data-start=\"3188\" data-end=\"3351\"\u003e\u003cstrong data-start=\"3188\" data-end=\"3237\"\u003eQ3: Are these wires safe for saltwater boats?\u003c\/strong\u003e\u003cbr data-start=\"3237\" data-end=\"3240\"\u003eA: Yes. The marine-rated insulation and connectors resist corrosion in both fresh and saltwater environments.\u003c\/p\u003e\n\u003cp data-start=\"3353\" data-end=\"3483\"\u003e\u003cstrong data-start=\"3353\" data-end=\"3382\"\u003eQ4: Is installation easy?\u003c\/strong\u003e\u003cbr data-start=\"3382\" data-end=\"3385\"\u003eA: Yes. Each wire is factory-length and ready to install — just match and replace one at a time.\u003c\/p\u003e\n\u003cp data-start=\"3485\" data-end=\"3626\"\u003e\u003cstrong data-start=\"3485\" data-end=\"3535\"\u003eQ5: Why use OEM wires instead of generic ones?\u003c\/strong\u003e\u003cbr data-start=\"3535\" data-end=\"3538\"\u003eA: OEM wires fit perfectly, last longer, and provide better spark under marine stress.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069374243,"sku":"84-816761Q12","price":92.09,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q12_main.jpg?v=1760631227"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-v-8-454-482-cid-engines-with-conventional-points-or-thunderbolt-ignition-84-816761q10","title":"Mercury – Quicksilver 816761Q10 Spark Plug Wire Kit | V8 GM MerCruiser Engines (454 \u0026 482 CID) | Points \u0026 Thunderbolt Ignition | 816761Q10","description":"\u003cp data-start=\"0\" data-end=\"144\"\u003e\u003cstrong data-start=\"0\" data-end=\"142\"\u003eMercury – Quicksilver 816761Q10 Spark Plug Wire Kit | V8 GM MerCruiser Engines (454 \u0026amp; 482 CID) | Points \u0026amp; Thunderbolt Ignition | 816761Q10\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"146\" data-end=\"149\"\u003e\n\u003ch3 data-start=\"151\" data-end=\"169\"\u003e\u003cstrong data-start=\"155\" data-end=\"167\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"170\" data-end=\"598\"\u003eWhen you turn the key, you want instant ignition — not hesitation. The \u003cstrong data-start=\"241\" data-end=\"286\"\u003eQuicksilver 816761Q10 Spark Plug Wire Kit\u003c\/strong\u003e keeps your classic \u003cstrong data-start=\"306\" data-end=\"357\"\u003eV8 GM-based MerCruiser engine (454 and 482 CID)\u003c\/strong\u003e firing strong and running smooth. Designed for both \u003cstrong data-start=\"410\" data-end=\"462\"\u003econventional points ignition systems (1977–1985)\u003c\/strong\u003e and \u003cstrong data-start=\"467\" data-end=\"502\"\u003eThunderbolt systems (1969–1981)\u003c\/strong\u003e, this OEM set delivers clean spark and dependable performance for vintage marine powerplants.\u003c\/p\u003e\n\u003cp data-start=\"600\" data-end=\"891\"\u003eEach wire is built to Mercury’s standards, cut to the exact length for your engine, and fitted with molded boots that seal out moisture. Whether you’re maintaining an old-school cruiser or keeping a big-block tow boat alive, these wires ensure the strong ignition your motor was built for.\u003c\/p\u003e\n\u003chr data-start=\"893\" data-end=\"896\"\u003e\n\u003ch3 data-start=\"898\" data-end=\"920\"\u003e\u003cstrong data-start=\"902\" data-end=\"918\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"923\" data-end=\"1011\"\u003e\n\u003cstrong data-start=\"923\" data-end=\"935\"\u003ePurpose:\u003c\/strong\u003e Restores reliable spark delivery for consistent ignition and performance.\u003c\/li\u003e\n\u003cli data-start=\"1014\" data-end=\"1153\"\u003e\n\u003cstrong data-start=\"1014\" data-end=\"1026\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"1031\" data-end=\"1081\"\u003eV8 GM-based MerCruiser engines (454 \u0026amp; 482 CID)\u003c\/strong\u003e using \u003cstrong data-start=\"1088\" data-end=\"1110\"\u003epoints (1977–1985)\u003c\/strong\u003e or \u003cstrong data-start=\"1114\" data-end=\"1150\"\u003eThunderbolt ignition (1969–1981)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1156\" data-end=\"1246\"\u003e\n\u003cstrong data-start=\"1156\" data-end=\"1173\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1183\" data-end=\"1216\"\u003eset of eight spark plug wires\u003c\/strong\u003e with molded plug-end boots.\u003c\/li\u003e\n\u003cli data-start=\"1249\" data-end=\"1342\"\u003e\n\u003cstrong data-start=\"1249\" data-end=\"1260\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1274\" data-end=\"1291\"\u003ecustom-length\u003c\/strong\u003e for the correct plug location and clean routing.\u003c\/li\u003e\n\u003cli data-start=\"1345\" data-end=\"1455\"\u003e\n\u003cstrong data-start=\"1345\" data-end=\"1360\"\u003eDurability:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1371\" data-end=\"1422\"\u003emarine heat, vibration, and moisture resistance\u003c\/strong\u003e to prevent cracking or arcing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1457\" data-end=\"1460\"\u003e\n\u003ch3 data-start=\"1462\" data-end=\"1499\"\u003e\u003cstrong data-start=\"1466\" data-end=\"1497\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1502\" data-end=\"1554\"\u003eGM-based MerCruiser 454 CID and 482 CID V8 engines\u003c\/li\u003e\n\u003cli data-start=\"1557\" data-end=\"1617\"\u003eConventional points and early Thunderbolt ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1620\" data-end=\"1690\"\u003eCommon on older sport boats, cruisers, and classic inboard\/outboards\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1692\" data-end=\"1695\"\u003e\n\u003ch3 data-start=\"1697\" data-end=\"1739\"\u003e\u003cstrong data-start=\"1701\" data-end=\"1737\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1740\" data-end=\"2015\"\u003eThe \u003cstrong data-start=\"1744\" data-end=\"1761\"\u003e816761Q10 kit\u003c\/strong\u003e brings back the reliable spark your classic MerCruiser needs. With low-resistance cores and snug-fitting boots, these wires deliver a strong, even spark to every cylinder — reducing misfires, improving throttle response, and making cold starts easier.\u003c\/p\u003e\n\u003cp data-start=\"2017\" data-end=\"2239\"\u003eMarine-grade insulation helps protect against moisture and heat, keeping the spark focused where it belongs. The result? A smoother idle, better mid-range power, and a dependable engine that responds when you ask for it.\u003c\/p\u003e\n\u003chr data-start=\"2241\" data-end=\"2244\"\u003e\n\u003ch3 data-start=\"2246\" data-end=\"2267\"\u003e\u003cstrong data-start=\"2250\" data-end=\"2265\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2268\" data-end=\"2492\"\u003eVintage engines deserve precision parts. Mercury’s OEM plug wires are engineered for marine use — not automotive adaptation — with exact lengths, proper resistance, and durable insulation that can handle marine conditions.\u003c\/p\u003e\n\u003cp data-start=\"2494\" data-end=\"2774\"\u003eAftermarket wire sets can look similar, but they often don’t match Mercury’s quality or fit. Using \u003cstrong data-start=\"2593\" data-end=\"2618\"\u003eQuicksilver OEM wires\u003c\/strong\u003e ensures perfect fitment, factory-level performance, and long-lasting reliability — so your classic engine keeps running like it did the day it was built.\u003c\/p\u003e\n\u003chr data-start=\"2776\" data-end=\"2779\"\u003e\n\u003ch3 data-start=\"2781\" data-end=\"2794\"\u003e\u003cstrong data-start=\"2785\" data-end=\"2792\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2795\" data-end=\"2995\"\u003e\u003cstrong data-start=\"2795\" data-end=\"2850\"\u003eQ1: What engines fit the Quicksilver 816761Q10 kit?\u003c\/strong\u003e\u003cbr data-start=\"2850\" data-end=\"2853\"\u003eA: It fits \u003cstrong data-start=\"2864\" data-end=\"2916\"\u003eV8 GM-based MerCruiser engines (454 and 482 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"2922\" data-end=\"2953\"\u003epoints ignition (1977–1985)\u003c\/strong\u003e or \u003cstrong data-start=\"2957\" data-end=\"2992\"\u003eThunderbolt systems (1969–1981)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2997\" data-end=\"3121\"\u003e\u003cstrong data-start=\"2997\" data-end=\"3036\"\u003eQ2: How many wires come in the kit?\u003c\/strong\u003e\u003cbr data-start=\"3036\" data-end=\"3039\"\u003eA: The kit includes \u003cstrong data-start=\"3059\" data-end=\"3085\"\u003eeight spark plug wires\u003c\/strong\u003e, each with molded plug-end boots.\u003c\/p\u003e\n\u003cp data-start=\"3123\" data-end=\"3263\"\u003e\u003cstrong data-start=\"3123\" data-end=\"3162\"\u003eQ3: Can these be used in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3162\" data-end=\"3165\"\u003eA: Yes. They’re built with corrosion-resistant materials for both salt and freshwater operation.\u003c\/p\u003e\n\u003cp data-start=\"3265\" data-end=\"3416\"\u003e\u003cstrong data-start=\"3265\" data-end=\"3298\"\u003eQ4: Are they easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3298\" data-end=\"3301\"\u003eA: Very. The wires are cut to factory lengths — just replace them one at a time to keep the firing order correct.\u003c\/p\u003e\n\u003cp data-start=\"3418\" data-end=\"3602\"\u003e\u003cstrong data-start=\"3418\" data-end=\"3471\"\u003eQ5: Why use OEM wires instead of automotive ones?\u003c\/strong\u003e\u003cbr data-start=\"3471\" data-end=\"3474\"\u003eA: Marine engines face constant heat, vibration, and moisture — OEM wires are built for those conditions and will last longer.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069407011,"sku":"84-816761Q10","price":93.29,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q9_2.jpg?v=1761575223"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-mcm-3-0l-lx-with-delco-digital-ignition-84-816761q13","title":"Mercury – Quicksilver 816761Q13 Spark Plug Wire Kit | 3.0L \u0026 LX MerCruiser Engines | Delco Digital Ignition | 816761Q13","description":"\u003cp data-start=\"0\" data-end=\"125\"\u003e\u003cstrong data-start=\"0\" data-end=\"123\"\u003eMercury – Quicksilver 816761Q13 Spark Plug Wire Kit | 3.0L \u0026amp; LX MerCruiser Engines | Delco Digital Ignition | 816761Q13\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"127\" data-end=\"130\"\u003e\n\u003ch3 data-start=\"132\" data-end=\"150\"\u003e\u003cstrong data-start=\"136\" data-end=\"148\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"151\" data-end=\"509\"\u003eReliable ignition starts with the right connection. The \u003cstrong data-start=\"207\" data-end=\"252\"\u003eQuicksilver 816761Q13 Spark Plug Wire Kit\u003c\/strong\u003e keeps your \u003cstrong data-start=\"264\" data-end=\"310\"\u003e3.0L and LX MerCruiser engines (1990–1995)\u003c\/strong\u003e running smooth and firing strong. Designed for \u003cstrong data-start=\"358\" data-end=\"392\"\u003eDelco digital ignition systems\u003c\/strong\u003e, this OEM wire set ensures clean spark delivery, steady idle, and long-term reliability in real marine conditions.\u003c\/p\u003e\n\u003cp data-start=\"511\" data-end=\"774\"\u003eEach wire is precision-cut to the exact length your engine needs, with snug-fitting boots that keep moisture out and the spark where it belongs. Built to Mercury’s high standards, it’s a simple upgrade that helps your boat start easy and perform like it should.\u003c\/p\u003e\n\u003chr data-start=\"776\" data-end=\"779\"\u003e\n\u003ch3 data-start=\"781\" data-end=\"803\"\u003e\u003cstrong data-start=\"785\" data-end=\"801\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"806\" data-end=\"899\"\u003e\n\u003cstrong data-start=\"806\" data-end=\"818\"\u003ePurpose:\u003c\/strong\u003e Replaces old or cracked plug wires to restore consistent ignition performance.\u003c\/li\u003e\n\u003cli data-start=\"902\" data-end=\"1008\"\u003e\n\u003cstrong data-start=\"902\" data-end=\"914\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"919\" data-end=\"965\"\u003e3.0L and LX MerCruiser engines (1990–1995)\u003c\/strong\u003e with \u003cstrong data-start=\"971\" data-end=\"1005\"\u003eDelco digital ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1011\" data-end=\"1117\"\u003e\n\u003cstrong data-start=\"1011\" data-end=\"1028\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1038\" data-end=\"1067\"\u003eset of 4 spark plug wires\u003c\/strong\u003e, each with molded boots at the spark plug ends.\u003c\/li\u003e\n\u003cli data-start=\"1120\" data-end=\"1206\"\u003e\n\u003cstrong data-start=\"1120\" data-end=\"1131\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1145\" data-end=\"1163\"\u003efactory-length\u003c\/strong\u003e for clean routing and easy installation.\u003c\/li\u003e\n\u003cli data-start=\"1209\" data-end=\"1323\"\u003e\n\u003cstrong data-start=\"1209\" data-end=\"1224\"\u003eDurability:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1235\" data-end=\"1292\"\u003emarine-grade heat, vibration, and moisture resistance\u003c\/strong\u003e to ensure long service life.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1325\" data-end=\"1328\"\u003e\n\u003ch3 data-start=\"1330\" data-end=\"1367\"\u003e\u003cstrong data-start=\"1334\" data-end=\"1365\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1370\" data-end=\"1414\"\u003e3.0L and LX MerCruiser engines (1990–1995)\u003c\/li\u003e\n\u003cli data-start=\"1417\" data-end=\"1449\"\u003eDelco digital ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1452\" data-end=\"1512\"\u003eCommon in runabouts, compact cruisers, and small tow boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1514\" data-end=\"1517\"\u003e\n\u003ch3 data-start=\"1519\" data-end=\"1561\"\u003e\u003cstrong data-start=\"1523\" data-end=\"1559\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1562\" data-end=\"1831\"\u003eThe \u003cstrong data-start=\"1566\" data-end=\"1579\"\u003e816761Q13\u003c\/strong\u003e kit keeps your ignition system firing efficiently, reducing misfires and improving throttle response. With low-resistance wire cores, it delivers full spark energy to every cylinder, giving you smoother idle, better fuel economy, and quicker starts.\u003c\/p\u003e\n\u003cp data-start=\"1833\" data-end=\"2108\"\u003eThe heavy-duty insulation stands up to marine heat and moisture, while the boots seal tight to prevent corrosion. Each wire is cut to fit, so installation is straightforward — swap them out one at a time, and you’ll be back on the water with reliable spark and clean power.\u003c\/p\u003e\n\u003chr data-start=\"2110\" data-end=\"2113\"\u003e\n\u003ch3 data-start=\"2115\" data-end=\"2136\"\u003e\u003cstrong data-start=\"2119\" data-end=\"2134\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2137\" data-end=\"2475\"\u003eMercury’s OEM plug wires are purpose-built for marine use — not repurposed automotive parts. Every Quicksilver set is tested for correct resistance, flexibility, and insulation integrity under real-world conditions. Aftermarket versions often lack the proper fit or use lower-grade insulation that fails early in the marine environment.\u003c\/p\u003e\n\u003cp data-start=\"2477\" data-end=\"2658\"\u003eWith \u003cstrong data-start=\"2482\" data-end=\"2511\"\u003egenuine Quicksilver wires\u003c\/strong\u003e, you’re getting the exact fit and performance Mercury intended, along with the durability to handle years of heat, vibration, and salt exposure.\u003c\/p\u003e\n\u003chr data-start=\"2660\" data-end=\"2663\"\u003e\n\u003ch3 data-start=\"2665\" data-end=\"2678\"\u003e\u003cstrong data-start=\"2669\" data-end=\"2676\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2679\" data-end=\"2838\"\u003e\u003cstrong data-start=\"2679\" data-end=\"2735\"\u003eQ1: Which engines fit the Quicksilver 816761Q13 kit?\u003c\/strong\u003e\u003cbr data-start=\"2735\" data-end=\"2738\"\u003eA: It fits \u003cstrong data-start=\"2749\" data-end=\"2795\"\u003e3.0L and LX MerCruiser engines (1990–1995)\u003c\/strong\u003e with \u003cstrong data-start=\"2801\" data-end=\"2835\"\u003eDelco digital ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2840\" data-end=\"2964\"\u003e\u003cstrong data-start=\"2840\" data-end=\"2876\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"2876\" data-end=\"2879\"\u003eA: The kit includes \u003cstrong data-start=\"2899\" data-end=\"2924\"\u003efour spark plug wires\u003c\/strong\u003e, each pre-fitted with plug-end boots.\u003c\/p\u003e\n\u003cp data-start=\"2966\" data-end=\"3102\"\u003e\u003cstrong data-start=\"2966\" data-end=\"3000\"\u003eQ3: Can I install them myself?\u003c\/strong\u003e\u003cbr data-start=\"3000\" data-end=\"3003\"\u003eA: Yes. Replace the wires one at a time to keep the firing order correct — it’s a simple DIY job.\u003c\/p\u003e\n\u003cp data-start=\"3104\" data-end=\"3255\"\u003e\u003cstrong data-start=\"3104\" data-end=\"3151\"\u003eQ4: Are these wires safe for saltwater use?\u003c\/strong\u003e\u003cbr data-start=\"3151\" data-end=\"3154\"\u003eA: Absolutely. They’re made from corrosion-resistant materials designed for the marine environment.\u003c\/p\u003e\n\u003cp data-start=\"3257\" data-end=\"3414\"\u003e\u003cstrong data-start=\"3257\" data-end=\"3286\"\u003eQ5: Why choose OEM wires?\u003c\/strong\u003e\u003cbr data-start=\"3286\" data-end=\"3289\"\u003eA: OEM wires provide the right resistance, perfect fit, and long-term reliability that aftermarket parts often can’t match.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069472547,"sku":"84-816761Q13","price":54.08,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q13_main.jpg?v=1760631221"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-v-8-305-350-cid-engines-with-thunderbolt-iv-and-v-ignition-84-816761q17","title":"Mercury – Quicksilver 816761Q17 Spark Plug Wire Kit | V8 GM MerCruiser (LH) Engines (305 \u0026 350 CID) | Thunderbolt IV Ignition | 816761Q17","description":"\u003cp data-start=\"0\" data-end=\"143\"\u003e\u003cstrong data-start=\"0\" data-end=\"141\"\u003eMercury – Quicksilver 816761Q17 Spark Plug Wire Kit | V8 GM MerCruiser (LH) Engines (305 \u0026amp; 350 CID) | Thunderbolt IV Ignition | 816761Q17\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"145\" data-end=\"148\"\u003e\n\u003ch3 data-start=\"150\" data-end=\"168\"\u003e\u003cstrong data-start=\"154\" data-end=\"166\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"169\" data-end=\"472\"\u003eYour engine’s spark system is its heartbeat — and strong, steady spark is key to dependable power. The \u003cstrong data-start=\"272\" data-end=\"317\"\u003eQuicksilver 816761Q17 Spark Plug Wire Kit\u003c\/strong\u003e keeps that spark strong in \u003cstrong data-start=\"345\" data-end=\"407\"\u003eV8 left-hand rotation MerCruiser engines (305 and 350 CID)\u003c\/strong\u003e equipped with \u003cstrong data-start=\"422\" data-end=\"469\"\u003eThunderbolt IV ignition systems (1993–2003)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"474\" data-end=\"807\"\u003eThis OEM kit is built for the realities of boating: salt air, vibration, and heat. Each wire is the right length for your setup, with molded boots that lock securely onto the plugs for a tight, moisture-resistant fit. Swap them in and you’ll instantly restore smooth idle, clean acceleration, and confident ignition on every start.\u003c\/p\u003e\n\u003chr data-start=\"809\" data-end=\"812\"\u003e\n\u003ch3 data-start=\"814\" data-end=\"836\"\u003e\u003cstrong data-start=\"818\" data-end=\"834\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"839\" data-end=\"943\"\u003e\n\u003cstrong data-start=\"839\" data-end=\"851\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or cracked wires to restore full ignition performance and prevent misfires.\u003c\/li\u003e\n\u003cli data-start=\"946\" data-end=\"1093\"\u003e\n\u003cstrong data-start=\"946\" data-end=\"958\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"963\" data-end=\"1037\"\u003eV8 LH (left-hand rotation) GM-based MerCruiser engines (305 \u0026amp; 350 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"1043\" data-end=\"1090\"\u003eThunderbolt IV ignition systems (1993–2003)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1096\" data-end=\"1206\"\u003e\n\u003cstrong data-start=\"1096\" data-end=\"1113\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1123\" data-end=\"1150\"\u003eset of spark plug wires\u003c\/strong\u003e with molded plug-end boots for easy, snug connection.\u003c\/li\u003e\n\u003cli data-start=\"1209\" data-end=\"1296\"\u003e\n\u003cstrong data-start=\"1209\" data-end=\"1220\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1234\" data-end=\"1252\"\u003efactory-length\u003c\/strong\u003e for proper routing and tidy installation.\u003c\/li\u003e\n\u003cli data-start=\"1299\" data-end=\"1412\"\u003e\n\u003cstrong data-start=\"1299\" data-end=\"1321\"\u003eMarine Durability:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1332\" data-end=\"1376\"\u003eheat, moisture, and vibration resistance\u003c\/strong\u003e in demanding marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1414\" data-end=\"1417\"\u003e\n\u003ch3 data-start=\"1419\" data-end=\"1456\"\u003e\u003cstrong data-start=\"1423\" data-end=\"1454\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1459\" data-end=\"1516\"\u003eGM-based V8 MerCruiser LH engines (305 CID and 350 CID)\u003c\/li\u003e\n\u003cli data-start=\"1519\" data-end=\"1564\"\u003eThunderbolt IV ignition systems (1993–2003)\u003c\/li\u003e\n\u003cli data-start=\"1567\" data-end=\"1636\"\u003eCommon on inboard\/outboard cruisers, tow boats, and sport runabouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1638\" data-end=\"1641\"\u003e\n\u003ch3 data-start=\"1643\" data-end=\"1685\"\u003e\u003cstrong data-start=\"1647\" data-end=\"1683\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1686\" data-end=\"1942\"\u003eThe \u003cstrong data-start=\"1690\" data-end=\"1703\"\u003e816761Q17\u003c\/strong\u003e wire set helps your ignition fire cleaner and stronger, giving smoother idle, quicker starts, and a steady pull at any speed. Each wire’s low-resistance core maintains strong spark energy for complete combustion and efficient fuel burn.\u003c\/p\u003e\n\u003cp data-start=\"1944\" data-end=\"2233\"\u003eThe heavy-duty insulation won’t crack under heat or stiffen over time, while the snug-fitting boots keep out water and corrosion. Installation is simple — replace one wire at a time to keep your firing order intact — and once fitted, you’ll notice the engine running quieter and cleaner.\u003c\/p\u003e\n\u003chr data-start=\"2235\" data-end=\"2238\"\u003e\n\u003ch3 data-start=\"2240\" data-end=\"2261\"\u003e\u003cstrong data-start=\"2244\" data-end=\"2259\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2262\" data-end=\"2560\"\u003eMercury’s OEM plug wires are built specifically for marine use — not modified automotive parts. Every Quicksilver wire is tested for correct resistance, flexibility, and temperature tolerance. Aftermarket options often miss on length or insulation quality, leading to early failure or weak spark.\u003c\/p\u003e\n\u003cp data-start=\"2562\" data-end=\"2792\"\u003eA \u003cstrong data-start=\"2564\" data-end=\"2596\"\u003egenuine Quicksilver wire kit\u003c\/strong\u003e means exact fit, consistent performance, and the peace of mind that comes with Mercury’s proven design. It’s the same ignition quality your engine had when it left the factory — just new again.\u003c\/p\u003e\n\u003chr data-start=\"2794\" data-end=\"2797\"\u003e\n\u003ch3 data-start=\"2799\" data-end=\"2812\"\u003e\u003cstrong data-start=\"2803\" data-end=\"2810\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2813\" data-end=\"2991\"\u003e\u003cstrong data-start=\"2813\" data-end=\"2868\"\u003eQ1: What engines use the Quicksilver 816761Q17 kit?\u003c\/strong\u003e\u003cbr data-start=\"2868\" data-end=\"2871\"\u003eA: It fits \u003cstrong data-start=\"2882\" data-end=\"2935\"\u003eV8 LH GM-based MerCruiser engines (305 \u0026amp; 350 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"2941\" data-end=\"2988\"\u003eThunderbolt IV ignition systems (1993–2003)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2993\" data-end=\"3137\"\u003e\u003cstrong data-start=\"2993\" data-end=\"3028\"\u003eQ2: What’s included in the kit?\u003c\/strong\u003e\u003cbr data-start=\"3028\" data-end=\"3031\"\u003eA: A complete \u003cstrong data-start=\"3045\" data-end=\"3072\"\u003eset of spark plug wires\u003c\/strong\u003e, each with molded plug boots for a precise, weather-tight fit.\u003c\/p\u003e\n\u003cp data-start=\"3139\" data-end=\"3269\"\u003e\u003cstrong data-start=\"3139\" data-end=\"3171\"\u003eQ3: Can I install it myself?\u003c\/strong\u003e\u003cbr data-start=\"3171\" data-end=\"3174\"\u003eA: Yes. Replace one wire at a time to maintain firing order — it’s a straightforward DIY job.\u003c\/p\u003e\n\u003cp data-start=\"3271\" data-end=\"3432\"\u003e\u003cstrong data-start=\"3271\" data-end=\"3311\"\u003eQ4: Are these wires saltwater-ready?\u003c\/strong\u003e\u003cbr data-start=\"3311\" data-end=\"3314\"\u003eA: Absolutely. The materials and terminals are corrosion-resistant and built to perform in both salt and freshwater.\u003c\/p\u003e\n\u003cp data-start=\"3434\" data-end=\"3602\"\u003e\u003cstrong data-start=\"3434\" data-end=\"3467\"\u003eQ5: Why OEM over aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3467\" data-end=\"3470\"\u003eA: OEM wires guarantee the right length, correct resistance, and long-term marine durability that aftermarket options can’t match.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069505315,"sku":"84-816761Q17","price":76.87,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q17.jpg?v=1761577091"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-gm-v-6-282-cid-engines-with-thunderbolt-iv-ignition-84-816761q16","title":"Mercury – Quicksilver 816761Q16 Spark Plug Wire Kit | V6 MerCruiser Engines | Thunderbolt IV Ignition | 816761Q16","description":"\u003cp data-start=\"0\" data-end=\"119\"\u003e\u003cstrong data-start=\"0\" data-end=\"117\"\u003eMercury – Quicksilver 816761Q16 Spark Plug Wire Kit | V6 MerCruiser Engines | Thunderbolt IV Ignition | 816761Q16\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"121\" data-end=\"124\"\u003e\n\u003ch3 data-start=\"126\" data-end=\"144\"\u003e\u003cstrong data-start=\"130\" data-end=\"142\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"145\" data-end=\"541\"\u003eSmooth, reliable ignition is what keeps your boat running like it should. The \u003cstrong data-start=\"223\" data-end=\"268\"\u003eQuicksilver 816761Q16 Spark Plug Wire Kit\u003c\/strong\u003e brings your \u003cstrong data-start=\"281\" data-end=\"317\"\u003eV6 MerCruiser engine (1985–2003)\u003c\/strong\u003e back to that factory-fresh performance. Built for \u003cstrong data-start=\"368\" data-end=\"403\"\u003eThunderbolt IV ignition systems\u003c\/strong\u003e, this OEM wire set restores clean spark delivery, steady idle, and quick starts — everything you need for dependable days on the water.\u003c\/p\u003e\n\u003cp data-start=\"543\" data-end=\"793\"\u003eEach wire is precision-cut for your engine’s exact layout and fitted with molded boots that lock tightly to the plugs, keeping moisture out and spark energy in. It’s a simple replacement that pays off with smoother running and long-term durability.\u003c\/p\u003e\n\u003chr data-start=\"795\" data-end=\"798\"\u003e\n\u003ch3 data-start=\"800\" data-end=\"822\"\u003e\u003cstrong data-start=\"804\" data-end=\"820\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"825\" data-end=\"914\"\u003e\n\u003cstrong data-start=\"825\" data-end=\"837\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or corroded plug wires to restore full ignition performance.\u003c\/li\u003e\n\u003cli data-start=\"917\" data-end=\"1024\"\u003e\n\u003cstrong data-start=\"917\" data-end=\"929\"\u003eFitment:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"943\" data-end=\"980\"\u003eV6 MerCruiser engines (1985–2003)\u003c\/strong\u003e with \u003cstrong data-start=\"986\" data-end=\"1021\"\u003eThunderbolt IV ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1027\" data-end=\"1133\"\u003e\n\u003cstrong data-start=\"1027\" data-end=\"1044\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1054\" data-end=\"1081\"\u003eset of spark plug wires\u003c\/strong\u003e with molded plug-end boots for secure connection.\u003c\/li\u003e\n\u003cli data-start=\"1136\" data-end=\"1214\"\u003e\n\u003cstrong data-start=\"1136\" data-end=\"1147\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1161\" data-end=\"1178\"\u003ecustom-length\u003c\/strong\u003e for proper fit and clean routing.\u003c\/li\u003e\n\u003cli data-start=\"1217\" data-end=\"1321\"\u003e\n\u003cstrong data-start=\"1217\" data-end=\"1239\"\u003eMarine Durability:\u003c\/strong\u003e Built to handle \u003cstrong data-start=\"1256\" data-end=\"1289\"\u003eheat, vibration, and moisture\u003c\/strong\u003e found in marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1323\" data-end=\"1326\"\u003e\n\u003ch3 data-start=\"1328\" data-end=\"1365\"\u003e\u003cstrong data-start=\"1332\" data-end=\"1363\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1368\" data-end=\"1426\"\u003eV6 MerCruiser inboard and sterndrive engines (1985–2003)\u003c\/li\u003e\n\u003cli data-start=\"1429\" data-end=\"1462\"\u003eThunderbolt IV ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1465\" data-end=\"1529\"\u003eCommon on family cruisers, sport boats, and mid-size runabouts\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1531\" data-end=\"1534\"\u003e\n\u003ch3 data-start=\"1536\" data-end=\"1578\"\u003e\u003cstrong data-start=\"1540\" data-end=\"1576\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1579\" data-end=\"1885\"\u003eThe \u003cstrong data-start=\"1583\" data-end=\"1605\"\u003e816761Q16 wire kit\u003c\/strong\u003e delivers strong, consistent voltage to every plug, helping your engine start faster, idle smoother, and accelerate more cleanly. The low-resistance cores ensure each cylinder fires evenly, while the marine-rated insulation protects against heat, salt, and engine-bay vibration.\u003c\/p\u003e\n\u003cp data-start=\"1887\" data-end=\"2155\"\u003eYou’ll notice immediate improvements in throttle response and overall reliability. Installation is straightforward — just replace one wire at a time to maintain the correct firing order. Once in place, you’ll have years of dependable spark and confident performance.\u003c\/p\u003e\n\u003chr data-start=\"2157\" data-end=\"2160\"\u003e\n\u003ch3 data-start=\"2162\" data-end=\"2183\"\u003e\u003cstrong data-start=\"2166\" data-end=\"2181\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2184\" data-end=\"2470\"\u003eMercury’s OEM wires are built specifically for marine use — with the right resistance, perfect length, and materials that hold up to the heat and moisture of life on the water. Aftermarket wires might look similar but can vary in size or resistance, leading to weak spark or misfires.\u003c\/p\u003e\n\u003cp data-start=\"2472\" data-end=\"2647\"\u003eWith \u003cstrong data-start=\"2477\" data-end=\"2502\"\u003eQuicksilver OEM wires\u003c\/strong\u003e, you get the exact fit and dependable ignition your engine was designed for. They’re proven in the same conditions your boat faces every trip.\u003c\/p\u003e\n\u003chr data-start=\"2649\" data-end=\"2652\"\u003e\n\u003ch3 data-start=\"2654\" data-end=\"2667\"\u003e\u003cstrong data-start=\"2658\" data-end=\"2665\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2668\" data-end=\"2827\"\u003e\u003cstrong data-start=\"2668\" data-end=\"2723\"\u003eQ1: What engines use the Quicksilver 816761Q16 kit?\u003c\/strong\u003e\u003cbr data-start=\"2723\" data-end=\"2726\"\u003eA: It fits \u003cstrong data-start=\"2737\" data-end=\"2774\"\u003eV6 MerCruiser engines (1985–2003)\u003c\/strong\u003e equipped with \u003cstrong data-start=\"2789\" data-end=\"2824\"\u003eThunderbolt IV ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2829\" data-end=\"2954\"\u003e\u003cstrong data-start=\"2829\" data-end=\"2865\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"2865\" data-end=\"2868\"\u003eA: A complete set of \u003cstrong data-start=\"2889\" data-end=\"2909\"\u003espark plug wires\u003c\/strong\u003e — one for each plug, all with molded ends.\u003c\/p\u003e\n\u003cp data-start=\"2956\" data-end=\"3091\"\u003e\u003cstrong data-start=\"2956\" data-end=\"2997\"\u003eQ3: Can these wires handle saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2997\" data-end=\"3000\"\u003eA: Yes. They’re made with corrosion-resistant materials for both salt and freshwater use.\u003c\/p\u003e\n\u003cp data-start=\"3093\" data-end=\"3218\"\u003e\u003cstrong data-start=\"3093\" data-end=\"3126\"\u003eQ4: Are they easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3126\" data-end=\"3129\"\u003eA: Very. Each wire is pre-cut to length — just replace them one by one and you’re done.\u003c\/p\u003e\n\u003cp data-start=\"3220\" data-end=\"3367\"\u003e\u003cstrong data-start=\"3220\" data-end=\"3243\"\u003eQ5: Why choose OEM?\u003c\/strong\u003e\u003cbr data-start=\"3243\" data-end=\"3246\"\u003eA: OEM wires guarantee a perfect fit, longer lifespan, and factory-level performance that aftermarket sets can’t match.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936069538083,"sku":"84-816761Q16","price":68.31,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816761q16_main.jpg?v=1760631226"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-red-fits-gm-v-8-305-350-377-cid-engines-with-mercury-ignition-84-816608q83","title":"Mercury – Quicksilver 816608Q83 Red Wire Spark Plug Wire Kit | V8 GM MerCruiser Engines (305, 350, 377 CID) | Mercury Ignition | 816608Q83","description":"\u003cp data-start=\"0\" data-end=\"144\"\u003e\u003cstrong data-start=\"0\" data-end=\"142\"\u003eMercury – Quicksilver 816608Q83 Red Wire Spark Plug Wire Kit | V8 GM MerCruiser Engines (305, 350, 377 CID) | Mercury Ignition | 816608Q83\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"146\" data-end=\"149\"\u003e\n\u003ch3 data-start=\"151\" data-end=\"169\"\u003e\u003cstrong data-start=\"155\" data-end=\"167\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"170\" data-end=\"415\"\u003eGood spark is what keeps your boat running smooth and strong. The \u003cstrong data-start=\"236\" data-end=\"290\"\u003eQuicksilver 816608Q83 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e is built for \u003cstrong data-start=\"304\" data-end=\"362\"\u003eV8 GM-based MerCruiser engines (305, 350, and 377 CID)\u003c\/strong\u003e that use \u003cstrong data-start=\"372\" data-end=\"412\"\u003eMercury ignition systems (1999–2001)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"417\" data-end=\"719\"\u003eEach wire is cut to the exact length for your setup, with molded boots that fit snug and seal out moisture. The red jacket looks clean under the cowl, but it’s more than just color — it’s made from heat-resistant, marine-grade insulation that stands up to salt, vibration, and long days on the water.\u003c\/p\u003e\n\u003chr data-start=\"721\" data-end=\"724\"\u003e\n\u003ch3 data-start=\"726\" data-end=\"748\"\u003e\u003cstrong data-start=\"730\" data-end=\"746\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"751\" data-end=\"832\"\u003e\n\u003cstrong data-start=\"751\" data-end=\"763\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or weak plug wires to bring back strong, even spark.\u003c\/li\u003e\n\u003cli data-start=\"835\" data-end=\"950\"\u003e\n\u003cstrong data-start=\"835\" data-end=\"847\"\u003eFitment:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"861\" data-end=\"909\"\u003eV8 GM MerCruiser engines (305, 350, 377 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"915\" data-end=\"947\"\u003eMercury ignition (1999–2001)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"953\" data-end=\"1052\"\u003e\n\u003cstrong data-start=\"953\" data-end=\"970\"\u003eKit Includes:\u003c\/strong\u003e \u003cstrong data-start=\"971\" data-end=\"990\"\u003eEight red wires\u003c\/strong\u003e with molded plug boots, each cut to factory-correct length.\u003c\/li\u003e\n\u003cli data-start=\"1055\" data-end=\"1137\"\u003e\n\u003cstrong data-start=\"1055\" data-end=\"1070\"\u003eDurability:\u003c\/strong\u003e Marine-rated construction that resists heat, oil, and corrosion.\u003c\/li\u003e\n\u003cli data-start=\"1140\" data-end=\"1240\"\u003e\n\u003cstrong data-start=\"1140\" data-end=\"1156\"\u003ePerformance:\u003c\/strong\u003e Delivers consistent voltage and keeps spark energy steady through all RPM ranges.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1242\" data-end=\"1245\"\u003e\n\u003ch3 data-start=\"1247\" data-end=\"1284\"\u003e\u003cstrong data-start=\"1251\" data-end=\"1282\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1287\" data-end=\"1339\"\u003eGM-based MerCruiser V8 engines (305, 350, 377 CID)\u003c\/li\u003e\n\u003cli data-start=\"1342\" data-end=\"1391\"\u003eMercury ignition systems, model years 1999–2001\u003c\/li\u003e\n\u003cli data-start=\"1394\" data-end=\"1455\"\u003eCommon in inboards, tow-sports boats, and mid-size cruisers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1457\" data-end=\"1460\"\u003e\n\u003ch3 data-start=\"1462\" data-end=\"1504\"\u003e\u003cstrong data-start=\"1466\" data-end=\"1502\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1505\" data-end=\"1774\"\u003eA fresh wire set can do more for your engine than you think. The \u003cstrong data-start=\"1570\" data-end=\"1583\"\u003e816608Q83\u003c\/strong\u003e restores clean spark delivery across all cylinders, helping your motor fire instantly and run smoother under load. You’ll feel crisper throttle response and a stronger pull when it counts.\u003c\/p\u003e\n\u003cp data-start=\"1776\" data-end=\"2043\"\u003eThe heavy-duty insulation stays flexible even in hot engine bays, while the snug boots keep out water and corrosion. Because every wire is the right length from the factory, routing is neat and simple — replace one at a time and you’re back on the water in no time.\u003c\/p\u003e\n\u003chr data-start=\"2045\" data-end=\"2048\"\u003e\n\u003ch3 data-start=\"2050\" data-end=\"2071\"\u003e\u003cstrong data-start=\"2054\" data-end=\"2069\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2072\" data-end=\"2354\"\u003eMercury builds their ignition parts for life on the water — constant heat, vibration, and exposure that most aftermarket brands never test for. The OEM wires are made with the right resistance, proper core materials, and perfectly molded ends to fit your engine the way it should.\u003c\/p\u003e\n\u003cp data-start=\"2356\" data-end=\"2627\"\u003eAftermarket wires might look close, but they can be off by an inch or two in length or lose insulation strength after a season. \u003cstrong data-start=\"2484\" data-end=\"2503\"\u003eQuicksilver OEM\u003c\/strong\u003e gives you peace of mind: perfect fit, proven durability, and the same quality that came with your engine when it was new.\u003c\/p\u003e\n\u003chr data-start=\"2629\" data-end=\"2632\"\u003e\n\u003ch3 data-start=\"2634\" data-end=\"2647\"\u003e\u003cstrong data-start=\"2638\" data-end=\"2645\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2648\" data-end=\"2808\"\u003e\u003cstrong data-start=\"2648\" data-end=\"2691\"\u003eQ1: What engines fit the 816608Q83 kit?\u003c\/strong\u003e\u003cbr data-start=\"2691\" data-end=\"2694\"\u003eA: It fits \u003cstrong data-start=\"2705\" data-end=\"2759\"\u003eV8 GM-based MerCruiser engines (305, 350, 377 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"2765\" data-end=\"2805\"\u003eMercury ignition systems (1999–2001)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2810\" data-end=\"2913\"\u003e\u003cstrong data-start=\"2810\" data-end=\"2834\"\u003eQ2: What’s included?\u003c\/strong\u003e\u003cbr data-start=\"2834\" data-end=\"2837\"\u003eA: A complete \u003cstrong data-start=\"2851\" data-end=\"2877\"\u003eset of eight red wires\u003c\/strong\u003e, each pre-fitted with plug boots.\u003c\/p\u003e\n\u003cp data-start=\"2915\" data-end=\"3044\"\u003e\u003cstrong data-start=\"2915\" data-end=\"2952\"\u003eQ3: Can I use these in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"2952\" data-end=\"2955\"\u003eA: Absolutely. The marine-grade insulation and terminals are built to resist corrosion.\u003c\/p\u003e\n\u003cp data-start=\"3046\" data-end=\"3168\"\u003e\u003cstrong data-start=\"3046\" data-end=\"3077\"\u003eQ4: Is installation simple?\u003c\/strong\u003e\u003cbr data-start=\"3077\" data-end=\"3080\"\u003eA: Yes. Swap them one by one to keep the firing order right — no special tools needed.\u003c\/p\u003e\n\u003cp data-start=\"3170\" data-end=\"3331\"\u003e\u003cstrong data-start=\"3170\" data-end=\"3212\"\u003eQ5: Why go OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3212\" data-end=\"3215\"\u003eA: OEM wires fit perfectly, last longer, and deliver the consistent spark Mercury engines need for smooth running.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936070750499,"sku":"84-816608Q83","price":91.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q83_main.jpg?v=1760631219"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-black-scorpion-tow-sports-with-delco-hei-ignition-84-816608q81","title":"Mercury – Quicksilver 816608Q81 Red Wire Spark Plug Wire Kit | MerCruiser Inboard Tow Sports Engines | Delco HEI Ignition | 816608Q81","description":"\u003cp data-start=\"0\" data-end=\"139\"\u003e\u003cstrong data-start=\"0\" data-end=\"137\"\u003eMercury – Quicksilver 816608Q81 Red Wire Spark Plug Wire Kit | MerCruiser Inboard Tow Sports Engines | Delco HEI Ignition | 816608Q81\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"141\" data-end=\"144\"\u003e\n\u003ch3 data-start=\"146\" data-end=\"164\"\u003e\u003cstrong data-start=\"150\" data-end=\"162\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"165\" data-end=\"565\"\u003eYour ignition system works hard every time you hit the key, and it needs solid, reliable plug wires to keep your engine performing like it should. The \u003cstrong data-start=\"316\" data-end=\"370\"\u003eQuicksilver 816608Q81 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e is built for \u003cstrong data-start=\"384\" data-end=\"437\"\u003eMerCruiser inboard tow-sports engines (1999–2001)\u003c\/strong\u003e with \u003cstrong data-start=\"443\" data-end=\"473\"\u003eDelco HEI ignition systems\u003c\/strong\u003e, delivering strong, consistent spark and long-term reliability in real marine conditions.\u003c\/p\u003e\n\u003cp data-start=\"567\" data-end=\"820\"\u003eEach wire is precision-cut to the correct length for easy routing and a perfect fit. With heavy-duty red insulation and marine-grade connectors, these wires are made to handle heat, vibration, and moisture — the kind of punishment boats see every day.\u003c\/p\u003e\n\u003chr data-start=\"822\" data-end=\"825\"\u003e\n\u003ch3 data-start=\"827\" data-end=\"849\"\u003e\u003cstrong data-start=\"831\" data-end=\"847\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"852\" data-end=\"947\"\u003e\n\u003cstrong data-start=\"852\" data-end=\"864\"\u003ePurpose:\u003c\/strong\u003e Restores strong ignition performance by replacing worn or aged spark plug wires.\u003c\/li\u003e\n\u003cli data-start=\"950\" data-end=\"1068\"\u003e\n\u003cstrong data-start=\"950\" data-end=\"962\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"967\" data-end=\"1020\"\u003eMerCruiser inboard tow-sports engines (1999–2001)\u003c\/strong\u003e equipped with \u003cstrong data-start=\"1035\" data-end=\"1065\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1071\" data-end=\"1180\"\u003e\n\u003cstrong data-start=\"1071\" data-end=\"1088\"\u003eKit Contents:\u003c\/strong\u003e Includes a \u003cstrong data-start=\"1100\" data-end=\"1142\"\u003ecomplete set of 8 red spark plug wires\u003c\/strong\u003e with molded boots at the plug ends.\u003c\/li\u003e\n\u003cli data-start=\"1183\" data-end=\"1284\"\u003e\n\u003cstrong data-start=\"1183\" data-end=\"1194\"\u003eDesign:\u003c\/strong\u003e Each lead is \u003cstrong data-start=\"1208\" data-end=\"1239\"\u003ecut to exact factory length\u003c\/strong\u003e for proper routing and clean installation.\u003c\/li\u003e\n\u003cli data-start=\"1287\" data-end=\"1404\"\u003e\n\u003cstrong data-start=\"1287\" data-end=\"1304\"\u003eMarine Grade:\u003c\/strong\u003e Engineered for \u003cstrong data-start=\"1320\" data-end=\"1367\"\u003eendurance, flexibility, and heat resistance\u003c\/strong\u003e in demanding boating environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1406\" data-end=\"1409\"\u003e\n\u003ch3 data-start=\"1411\" data-end=\"1448\"\u003e\u003cstrong data-start=\"1415\" data-end=\"1446\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1451\" data-end=\"1515\"\u003eMerCruiser inboard tow-sports engines (V8 GM-based, 1999–2001)\u003c\/li\u003e\n\u003cli data-start=\"1518\" data-end=\"1546\"\u003eDelco HEI ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1549\" data-end=\"1621\"\u003eCommon in wake boats, ski boats, and high-performance tow-sport setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1623\" data-end=\"1626\"\u003e\n\u003ch3 data-start=\"1628\" data-end=\"1670\"\u003e\u003cstrong data-start=\"1632\" data-end=\"1668\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1671\" data-end=\"1936\"\u003eThe \u003cstrong data-start=\"1675\" data-end=\"1697\"\u003e816608Q81 wire kit\u003c\/strong\u003e brings your ignition system back to peak performance. Each wire delivers low-resistance conductivity to keep spark energy strong from the distributor to each plug. The result — cleaner starts, smoother idle, and steady power under load.\u003c\/p\u003e\n\u003cp data-start=\"1938\" data-end=\"2223\"\u003eThe marine-rated insulation resists cracking, fading, and moisture, even after long days in the sun or spray. With snug-fitting boots and factory-cut lengths, these wires install easily and stay locked in place, giving your engine the reliable spark it needs to perform on every run.\u003c\/p\u003e\n\u003chr data-start=\"2225\" data-end=\"2228\"\u003e\n\u003ch3 data-start=\"2230\" data-end=\"2251\"\u003e\u003cstrong data-start=\"2234\" data-end=\"2249\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2252\" data-end=\"2516\"\u003eMercury’s OEM ignition components are built for real-world marine use — not repurposed automotive parts. Every Quicksilver wire set is tested for proper resistance, heat tolerance, and flexibility, ensuring it won’t fail under vibration or exposure to saltwater.\u003c\/p\u003e\n\u003cp data-start=\"2518\" data-end=\"2736\"\u003eAftermarket wire sets might fit, but they rarely match Mercury’s standards for precision and longevity. With OEM, you’re getting the exact wires your engine was designed to run — built for performance, built to last.\u003c\/p\u003e\n\u003chr data-start=\"2738\" data-end=\"2741\"\u003e\n\u003ch3 data-start=\"2743\" data-end=\"2756\"\u003e\u003cstrong data-start=\"2747\" data-end=\"2754\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2757\" data-end=\"2918\"\u003e\u003cstrong data-start=\"2757\" data-end=\"2812\"\u003eQ1: What engines fit the Quicksilver 816608Q81 kit?\u003c\/strong\u003e\u003cbr data-start=\"2812\" data-end=\"2815\"\u003eA: It fits \u003cstrong data-start=\"2826\" data-end=\"2879\"\u003eMerCruiser inboard tow-sports engines (1999–2001)\u003c\/strong\u003e with \u003cstrong data-start=\"2885\" data-end=\"2915\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2920\" data-end=\"3034\"\u003e\u003cstrong data-start=\"2920\" data-end=\"2944\"\u003eQ2: What’s included?\u003c\/strong\u003e\u003cbr data-start=\"2944\" data-end=\"2947\"\u003eA: A \u003cstrong data-start=\"2952\" data-end=\"2994\"\u003ecomplete set of 8 red spark plug wires\u003c\/strong\u003e, each pre-fitted with plug-end boots.\u003c\/p\u003e\n\u003cp data-start=\"3036\" data-end=\"3207\"\u003e\u003cstrong data-start=\"3036\" data-end=\"3077\"\u003eQ3: Can these wires handle saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3077\" data-end=\"3080\"\u003eA: Yes. They’re built with corrosion-resistant terminals and marine-rated insulation for both fresh and saltwater conditions.\u003c\/p\u003e\n\u003cp data-start=\"3209\" data-end=\"3337\"\u003e\u003cstrong data-start=\"3209\" data-end=\"3242\"\u003eQ4: Are they easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3242\" data-end=\"3245\"\u003eA: Yes. Replace one wire at a time to keep firing order correct — no special tools needed.\u003c\/p\u003e\n\u003cp data-start=\"3339\" data-end=\"3538\"\u003e\u003cstrong data-start=\"3339\" data-end=\"3381\"\u003eQ5: Why choose OEM over generic wires?\u003c\/strong\u003e\u003cbr data-start=\"3381\" data-end=\"3384\"\u003eA: OEM wires are cut to exact factory length, use higher-quality materials, and are tested for marine performance — they last longer and perform better.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936070816035,"sku":"84-816608Q81","price":94.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q81_main.jpg?v=1760631222"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-red-fits-gm-v-8-350-cid-engines-with-delco-hei-ignition-84-816608q71","title":"Mercury – Quicksilver 816608Q71 Red Wire Spark Plug Wire Kit | GM 350 CID V8 Marine Engines | Delco HEI Ignition | 816608Q71","description":"\u003cp data-start=\"0\" data-end=\"130\"\u003e\u003cstrong data-start=\"0\" data-end=\"128\"\u003eMercury – Quicksilver 816608Q71 Red Wire Spark Plug Wire Kit | GM 350 CID V8 Marine Engines | Delco HEI Ignition | 816608Q71\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"132\" data-end=\"135\"\u003e\n\u003ch3 data-start=\"137\" data-end=\"155\"\u003e\u003cstrong data-start=\"141\" data-end=\"153\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"156\" data-end=\"457\"\u003eWhen your engine starts smooth and pulls strong, it’s a sign your ignition system is working right — and that starts with solid plug wires. The \u003cstrong data-start=\"300\" data-end=\"354\"\u003eQuicksilver 816608Q71 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e is built for \u003cstrong data-start=\"368\" data-end=\"403\"\u003eV8 GM 350 CID marinized engines\u003c\/strong\u003e running \u003cstrong data-start=\"412\" data-end=\"454\"\u003eDelco HEI ignition systems (1995–1998)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"459\" data-end=\"743\"\u003eThis OEM kit includes a full set of eight red wires, each pre-fitted with spark plug boots and cut to the exact length for clean routing. Made to handle marine heat, vibration, and moisture, they deliver the dependable spark your boat needs every time you fire up and throttle down.\u003c\/p\u003e\n\u003chr data-start=\"745\" data-end=\"748\"\u003e\n\u003ch3 data-start=\"750\" data-end=\"772\"\u003e\u003cstrong data-start=\"754\" data-end=\"770\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"775\" data-end=\"876\"\u003e\n\u003cstrong data-start=\"775\" data-end=\"787\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or aged plug wires to restore consistent ignition and clean performance.\u003c\/li\u003e\n\u003cli data-start=\"879\" data-end=\"988\"\u003e\n\u003cstrong data-start=\"879\" data-end=\"891\"\u003eFitment:\u003c\/strong\u003e Designed for \u003cstrong data-start=\"905\" data-end=\"949\"\u003eV8 GM 350 CID marine engines (1995–1998)\u003c\/strong\u003e with \u003cstrong data-start=\"955\" data-end=\"985\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"991\" data-end=\"1115\"\u003e\n\u003cstrong data-start=\"991\" data-end=\"1008\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1018\" data-end=\"1049\"\u003eset of eight red plug wires\u003c\/strong\u003e with pre-installed boots for secure, moisture-tight connection.\u003c\/li\u003e\n\u003cli data-start=\"1118\" data-end=\"1221\"\u003e\n\u003cstrong data-start=\"1118\" data-end=\"1129\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1143\" data-end=\"1160\"\u003ecustom-length\u003c\/strong\u003e to reach the correct plug without excess slack or tension.\u003c\/li\u003e\n\u003cli data-start=\"1224\" data-end=\"1341\"\u003e\n\u003cstrong data-start=\"1224\" data-end=\"1246\"\u003eMarine Durability:\u003c\/strong\u003e Engineered for \u003cstrong data-start=\"1262\" data-end=\"1306\"\u003eheat, moisture, and vibration resistance\u003c\/strong\u003e in demanding boating conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1343\" data-end=\"1346\"\u003e\n\u003ch3 data-start=\"1348\" data-end=\"1385\"\u003e\u003cstrong data-start=\"1352\" data-end=\"1383\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1388\" data-end=\"1451\"\u003eGM-based V8 350 CID MerCruiser inboard and sterndrive engines\u003c\/li\u003e\n\u003cli data-start=\"1454\" data-end=\"1494\"\u003eDelco HEI ignition systems (1995–1998)\u003c\/li\u003e\n\u003cli data-start=\"1497\" data-end=\"1575\"\u003eFound on classic cruisers, mid-size sport boats, and inboard\/outboard setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1577\" data-end=\"1580\"\u003e\n\u003ch3 data-start=\"1582\" data-end=\"1624\"\u003e\u003cstrong data-start=\"1586\" data-end=\"1622\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1625\" data-end=\"1911\"\u003eThe \u003cstrong data-start=\"1629\" data-end=\"1642\"\u003e816608Q71\u003c\/strong\u003e kit restores the crisp, reliable spark your engine depends on. Each wire is built for high conductivity and low resistance, giving you strong voltage delivery from the distributor to the plugs. That means easier starts, cleaner throttle response, and fewer misfires.\u003c\/p\u003e\n\u003cp data-start=\"1913\" data-end=\"2222\"\u003eThe red jacket not only looks sharp but also resists cracking and fading, even under marine heat. Installation is straightforward — match each wire to its plug, click it into place, and you’re done. Once installed, you’ll notice smoother idle, stronger acceleration, and better reliability out on the water.\u003c\/p\u003e\n\u003chr data-start=\"2224\" data-end=\"2227\"\u003e\n\u003ch3 data-start=\"2229\" data-end=\"2250\"\u003e\u003cstrong data-start=\"2233\" data-end=\"2248\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2251\" data-end=\"2596\"\u003eMercury’s OEM wires are designed specifically for their marine engines — they’re not rebranded automotive parts. Every wire and boot is tested for proper resistance, heat tolerance, and vibration durability. Aftermarket sets might fit, but they often miss on length or use lower-quality insulation that breaks down under heat or salt exposure.\u003c\/p\u003e\n\u003cp data-start=\"2598\" data-end=\"2808\"\u003eA \u003cstrong data-start=\"2600\" data-end=\"2632\"\u003egenuine Quicksilver wire kit\u003c\/strong\u003e gives you the exact fit, clean routing, and performance you’d expect from factory equipment. It’s a small upgrade that makes a big difference in reliability and engine life.\u003c\/p\u003e\n\u003chr data-start=\"2810\" data-end=\"2813\"\u003e\n\u003ch3 data-start=\"2815\" data-end=\"2828\"\u003e\u003cstrong data-start=\"2819\" data-end=\"2826\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2829\" data-end=\"2988\"\u003e\u003cstrong data-start=\"2829\" data-end=\"2885\"\u003eQ1: What engines does the Quicksilver 816608Q71 fit?\u003c\/strong\u003e\u003cbr data-start=\"2885\" data-end=\"2888\"\u003eA: It’s made for \u003cstrong data-start=\"2905\" data-end=\"2937\"\u003eV8 GM 350 CID marine engines\u003c\/strong\u003e with \u003cstrong data-start=\"2943\" data-end=\"2985\"\u003eDelco HEI ignition systems (1995–1998)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2990\" data-end=\"3124\"\u003e\u003cstrong data-start=\"2990\" data-end=\"3026\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"3026\" data-end=\"3029\"\u003eA: The kit comes with \u003cstrong data-start=\"3051\" data-end=\"3070\"\u003eeight red wires\u003c\/strong\u003e, each cut and fitted for the correct plug location.\u003c\/p\u003e\n\u003cp data-start=\"3126\" data-end=\"3261\"\u003e\u003cstrong data-start=\"3126\" data-end=\"3171\"\u003eQ3: Can these wires be used in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3171\" data-end=\"3174\"\u003eA: Yes. They’re built with marine-rated insulation and corrosion-resistant terminals.\u003c\/p\u003e\n\u003cp data-start=\"3263\" data-end=\"3406\"\u003e\u003cstrong data-start=\"3263\" data-end=\"3296\"\u003eQ4: Are they easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3296\" data-end=\"3299\"\u003eA: Very. Just remove and replace one wire at a time to maintain firing order — no special tools required.\u003c\/p\u003e\n\u003cp data-start=\"3408\" data-end=\"3594\"\u003e\u003cstrong data-start=\"3408\" data-end=\"3463\"\u003eQ5: Why choose OEM wires instead of universal ones?\u003c\/strong\u003e\u003cbr data-start=\"3463\" data-end=\"3466\"\u003eA: OEM wires are made for your exact engine, ensuring correct length, resistance, and lasting durability in marine conditions.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936070881571,"sku":"84-816608Q71","price":91.66,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q71_main.jpg?v=1760631227"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-red-fits-5-7l-mie-tow-sports-with-thunderbolt-iv-ignition-84-816608q80","title":"Mercury – Quicksilver 816608Q80 Red Wire Spark Plug Wire Kit | MerCruiser 5.7L Inboard \u0026 Tow Sports Engines | Thunderbolt IV Ignition | 816608Q80","description":"\u003cp data-start=\"0\" data-end=\"151\"\u003e\u003cstrong data-start=\"0\" data-end=\"149\"\u003eMercury – Quicksilver 816608Q80 Red Wire Spark Plug Wire Kit | MerCruiser 5.7L Inboard \u0026amp; Tow Sports Engines | Thunderbolt IV Ignition | 816608Q80\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"153\" data-end=\"156\"\u003e\n\u003ch3 data-start=\"158\" data-end=\"176\"\u003e\u003cstrong data-start=\"162\" data-end=\"174\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"177\" data-end=\"577\"\u003eGood spark equals good power — and that starts with quality wires. The \u003cstrong data-start=\"248\" data-end=\"302\"\u003eQuicksilver 816608Q80 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e keeps your \u003cstrong data-start=\"314\" data-end=\"363\"\u003eMerCruiser 5.7L inboard and tow-sports engine\u003c\/strong\u003e firing clean and strong. Designed for \u003cstrong data-start=\"402\" data-end=\"449\"\u003eThunderbolt IV ignition systems (1998–2010)\u003c\/strong\u003e, this OEM wire set delivers reliable spark, clean combustion, and the kind of long-term dependability serious boaters expect.\u003c\/p\u003e\n\u003cp data-start=\"579\" data-end=\"804\"\u003eEach wire is cut to the perfect length for your engine’s layout, making routing simple and tidy. The bright red jacket adds a sharp, factory look under the cover while protecting the core from heat, moisture, and vibration.\u003c\/p\u003e\n\u003chr data-start=\"806\" data-end=\"809\"\u003e\n\u003ch3 data-start=\"811\" data-end=\"833\"\u003e\u003cstrong data-start=\"815\" data-end=\"831\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"836\" data-end=\"926\"\u003e\n\u003cstrong data-start=\"836\" data-end=\"848\"\u003ePurpose:\u003c\/strong\u003e Replaces worn plug wires to restore ignition strength and prevent misfires.\u003c\/li\u003e\n\u003cli data-start=\"929\" data-end=\"1053\"\u003e\n\u003cstrong data-start=\"929\" data-end=\"941\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"946\" data-end=\"996\"\u003eMerCruiser 5.7L inboard and tow-sports engines\u003c\/strong\u003e using \u003cstrong data-start=\"1003\" data-end=\"1050\"\u003eThunderbolt IV ignition systems (1998–2010)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1056\" data-end=\"1158\"\u003e\n\u003cstrong data-start=\"1056\" data-end=\"1073\"\u003eKit Contents:\u003c\/strong\u003e Includes \u003cstrong data-start=\"1083\" data-end=\"1113\"\u003eeight red spark plug wires\u003c\/strong\u003e with pre-installed boots at the plug ends.\u003c\/li\u003e\n\u003cli data-start=\"1161\" data-end=\"1251\"\u003e\n\u003cstrong data-start=\"1161\" data-end=\"1172\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1186\" data-end=\"1203\"\u003ecustom-length\u003c\/strong\u003e for the correct plug reach and clean routing.\u003c\/li\u003e\n\u003cli data-start=\"1254\" data-end=\"1341\"\u003e\n\u003cstrong data-start=\"1254\" data-end=\"1269\"\u003eDurability:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1280\" data-end=\"1338\"\u003emarine-grade heat, vibration, and corrosion resistance\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1343\" data-end=\"1346\"\u003e\n\u003ch3 data-start=\"1348\" data-end=\"1385\"\u003e\u003cstrong data-start=\"1352\" data-end=\"1383\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1388\" data-end=\"1467\"\u003eMerCruiser 5.7L V8 engines (inboard and tow-sports configurations, 1998–2010)\u003c\/li\u003e\n\u003cli data-start=\"1470\" data-end=\"1503\"\u003eThunderbolt IV ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1506\" data-end=\"1578\"\u003eCommon on ski boats, wake boats, and high-performance inboard cruisers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1580\" data-end=\"1583\"\u003e\n\u003ch3 data-start=\"1585\" data-end=\"1627\"\u003e\u003cstrong data-start=\"1589\" data-end=\"1625\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1628\" data-end=\"1936\"\u003eThe \u003cstrong data-start=\"1632\" data-end=\"1649\"\u003e816608Q80 kit\u003c\/strong\u003e brings your ignition system back to life with strong, even spark delivery to every cylinder. The low-resistance wire core ensures full voltage transfer for smooth starts and steady throttle response. You’ll notice cleaner idling, stronger acceleration, and less hesitation under load.\u003c\/p\u003e\n\u003cp data-start=\"1938\" data-end=\"2208\"\u003eThe red insulation isn’t just for looks — it’s marine-tough. It resists cracking and fading from heat or sunlight and seals tightly against moisture and oil. The result? Wires that last longer, perform better, and keep your engine running like new season after season.\u003c\/p\u003e\n\u003chr data-start=\"2210\" data-end=\"2213\"\u003e\n\u003ch3 data-start=\"2215\" data-end=\"2236\"\u003e\u003cstrong data-start=\"2219\" data-end=\"2234\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2237\" data-end=\"2555\"\u003eMercury’s OEM ignition wires are made for marine use from the inside out. Each wire is tested for proper resistance, insulation integrity, and heat endurance to meet Mercury’s exact standards. Aftermarket wire sets may be cheaper, but they rarely match the correct lengths or materials that marine conditions demand.\u003c\/p\u003e\n\u003cp data-start=\"2557\" data-end=\"2719\"\u003eA \u003cstrong data-start=\"2559\" data-end=\"2591\"\u003egenuine Quicksilver wire kit\u003c\/strong\u003e gives you peace of mind — exact fit, tested durability, and factory performance. It’s what your engine was built to run with.\u003c\/p\u003e\n\u003chr data-start=\"2721\" data-end=\"2724\"\u003e\n\u003ch3 data-start=\"2726\" data-end=\"2739\"\u003e\u003cstrong data-start=\"2730\" data-end=\"2737\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2740\" data-end=\"2922\"\u003e\u003cstrong data-start=\"2740\" data-end=\"2795\"\u003eQ1: What engines fit the Quicksilver 816608Q80 kit?\u003c\/strong\u003e\u003cbr data-start=\"2795\" data-end=\"2798\"\u003eA: It’s built for \u003cstrong data-start=\"2816\" data-end=\"2866\"\u003eMerCruiser 5.7L inboard and tow-sports engines\u003c\/strong\u003e with \u003cstrong data-start=\"2872\" data-end=\"2919\"\u003eThunderbolt IV ignition systems (1998–2010)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2924\" data-end=\"3057\"\u003e\u003cstrong data-start=\"2924\" data-end=\"2963\"\u003eQ2: How many wires come in the kit?\u003c\/strong\u003e\u003cbr data-start=\"2963\" data-end=\"2966\"\u003eA: The kit includes \u003cstrong data-start=\"2986\" data-end=\"3016\"\u003eeight red spark plug wires\u003c\/strong\u003e, all pre-fitted with spark plug boots.\u003c\/p\u003e\n\u003cp data-start=\"3059\" data-end=\"3201\"\u003e\u003cstrong data-start=\"3059\" data-end=\"3098\"\u003eQ3: Can these be used in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3098\" data-end=\"3101\"\u003eA: Yes. The insulation and terminals are corrosion-resistant and designed for marine environments.\u003c\/p\u003e\n\u003cp data-start=\"3203\" data-end=\"3320\"\u003e\u003cstrong data-start=\"3203\" data-end=\"3237\"\u003eQ4: Is installation difficult?\u003c\/strong\u003e\u003cbr data-start=\"3237\" data-end=\"3240\"\u003eA: No. The wires are pre-cut and labeled for a simple one-for-one replacement.\u003c\/p\u003e\n\u003cp data-start=\"3322\" data-end=\"3479\"\u003e\u003cstrong data-start=\"3322\" data-end=\"3351\"\u003eQ5: Why choose OEM wires?\u003c\/strong\u003e\u003cbr data-start=\"3351\" data-end=\"3354\"\u003eA: OEM wires fit perfectly, last longer, and maintain the proper resistance your ignition system needs for top performance.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936071209251,"sku":"84-816608Q80","price":91.45,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q80_main.jpg?v=1760631224"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-red-fits-gm-v-8-305-350-cid-engines-with-delco-hei-ignition-84-816608q70","title":"Mercury – Quicksilver 816608Q70 Red Wire Spark Plug Wire Kit | GM V8 Marine Engines | Delco HEI Ignition | 816608Q70","description":"\u003cp data-start=\"0\" data-end=\"122\"\u003e\u003cstrong data-start=\"0\" data-end=\"120\"\u003eMercury – Quicksilver 816608Q70 Red Wire Spark Plug Wire Kit | GM V8 Marine Engines | Delco HEI Ignition | 816608Q70\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"124\" data-end=\"127\"\u003e\n\u003ch3 data-start=\"129\" data-end=\"147\"\u003e\u003cstrong data-start=\"133\" data-end=\"145\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"148\" data-end=\"443\"\u003eA strong, even spark keeps your boat running smooth and powerful — and that starts with quality plug wires. The \u003cstrong data-start=\"260\" data-end=\"314\"\u003eQuicksilver 816608Q70 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e is made for \u003cstrong data-start=\"327\" data-end=\"375\"\u003eV8 GM-based marine engines (305 and 350 CID)\u003c\/strong\u003e running \u003cstrong data-start=\"384\" data-end=\"414\"\u003eDelco HEI ignition systems\u003c\/strong\u003e between \u003cstrong data-start=\"423\" data-end=\"440\"\u003e1995 and 1998\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"445\" data-end=\"729\"\u003eEach wire is built for precision, cut to the exact length for your setup, and finished in a durable red jacket that’s made to handle marine heat, vibration, and moisture. It’s a simple upgrade that restores the crisp ignition response and dependability your engine was designed for.\u003c\/p\u003e\n\u003chr data-start=\"731\" data-end=\"734\"\u003e\n\u003ch3 data-start=\"736\" data-end=\"758\"\u003e\u003cstrong data-start=\"740\" data-end=\"756\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"761\" data-end=\"861\"\u003e\n\u003cstrong data-start=\"761\" data-end=\"773\"\u003ePurpose:\u003c\/strong\u003e Replaces old, worn, or corroded spark plug wires to restore strong, consistent spark.\u003c\/li\u003e\n\u003cli data-start=\"864\" data-end=\"976\"\u003e\n\u003cstrong data-start=\"864\" data-end=\"876\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"881\" data-end=\"924\"\u003eV8 GM marinized engines (305 \u0026amp; 350 CID)\u003c\/strong\u003e using \u003cstrong data-start=\"931\" data-end=\"973\"\u003eDelco HEI ignition systems (1995–1998)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"979\" data-end=\"1084\"\u003e\n\u003cstrong data-start=\"979\" data-end=\"996\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1006\" data-end=\"1039\"\u003eset of 8 red spark plug wires\u003c\/strong\u003e with pre-installed boots at the plug ends.\u003c\/li\u003e\n\u003cli data-start=\"1087\" data-end=\"1188\"\u003e\n\u003cstrong data-start=\"1087\" data-end=\"1098\"\u003eDesign:\u003c\/strong\u003e Each lead is \u003cstrong data-start=\"1112\" data-end=\"1129\"\u003ecustom-length\u003c\/strong\u003e to reach the correct plug location cleanly and securely.\u003c\/li\u003e\n\u003cli data-start=\"1191\" data-end=\"1306\"\u003e\n\u003cstrong data-start=\"1191\" data-end=\"1206\"\u003eDurability:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1217\" data-end=\"1274\"\u003emarine-grade heat, vibration, and moisture resistance\u003c\/strong\u003e for long-lasting performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1308\" data-end=\"1311\"\u003e\n\u003ch3 data-start=\"1313\" data-end=\"1350\"\u003e\u003cstrong data-start=\"1317\" data-end=\"1348\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1353\" data-end=\"1403\"\u003eGM-based V8 MerCruiser engines (305 and 350 CID)\u003c\/li\u003e\n\u003cli data-start=\"1406\" data-end=\"1453\"\u003eDelco HEI ignition systems (1995–1998 models)\u003c\/li\u003e\n\u003cli data-start=\"1456\" data-end=\"1536\"\u003eUsed on sport boats, performance cruisers, and classic inboard\/outboard setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1538\" data-end=\"1541\"\u003e\n\u003ch3 data-start=\"1543\" data-end=\"1585\"\u003e\u003cstrong data-start=\"1547\" data-end=\"1583\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1586\" data-end=\"1843\"\u003eThe \u003cstrong data-start=\"1590\" data-end=\"1612\"\u003e816608Q70 wire kit\u003c\/strong\u003e restores the clean, steady ignition your engine depends on. Each wire is engineered for low resistance and high conductivity, helping deliver full voltage to the plugs for faster starts, smoother idle, and stronger acceleration.\u003c\/p\u003e\n\u003cp data-start=\"1845\" data-end=\"2190\"\u003eThe marine-grade insulation stands up to constant heat and moisture, while the red jacket resists cracking or fading. Because each wire is cut to fit perfectly, installation is quick — no trimming or guesswork, just match and snap them into place. Once installed, you’ll notice a cleaner-running engine and more responsive throttle right away.\u003c\/p\u003e\n\u003chr data-start=\"2192\" data-end=\"2195\"\u003e\n\u003ch3 data-start=\"2197\" data-end=\"2218\"\u003e\u003cstrong data-start=\"2201\" data-end=\"2216\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2219\" data-end=\"2480\"\u003eMercury’s OEM ignition wires are made to the same standards as their factory engines — tested for strength, resistance, and conductivity in real marine conditions. Aftermarket sets often miss on length or use materials that break down faster in heat and salt.\u003c\/p\u003e\n\u003cp data-start=\"2482\" data-end=\"2693\"\u003eWith \u003cstrong data-start=\"2487\" data-end=\"2512\"\u003eQuicksilver OEM wires\u003c\/strong\u003e, you get a guaranteed fit, correct resistance, and durability built for the long haul. It’s the same quality Mercury installs on their new engines, so you know it’s made to last.\u003c\/p\u003e\n\u003chr data-start=\"2695\" data-end=\"2698\"\u003e\n\u003ch3 data-start=\"2700\" data-end=\"2713\"\u003e\u003cstrong data-start=\"2704\" data-end=\"2711\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2714\" data-end=\"2897\"\u003e\u003cstrong data-start=\"2714\" data-end=\"2769\"\u003eQ1: What engines fit the Quicksilver 816608Q70 kit?\u003c\/strong\u003e\u003cbr data-start=\"2769\" data-end=\"2772\"\u003eA: It’s made for \u003cstrong data-start=\"2789\" data-end=\"2831\"\u003eV8 GM marine engines (305 and 350 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"2837\" data-end=\"2867\"\u003eDelco HEI ignition systems\u003c\/strong\u003e, model years \u003cstrong data-start=\"2881\" data-end=\"2894\"\u003e1995–1998\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2899\" data-end=\"3021\"\u003e\u003cstrong data-start=\"2899\" data-end=\"2934\"\u003eQ2: What’s included in the kit?\u003c\/strong\u003e\u003cbr data-start=\"2934\" data-end=\"2937\"\u003eA: A \u003cstrong data-start=\"2942\" data-end=\"2984\"\u003ecomplete set of 8 red spark plug wires\u003c\/strong\u003e with pre-installed plug-end boots.\u003c\/p\u003e\n\u003cp data-start=\"3023\" data-end=\"3165\"\u003e\u003cstrong data-start=\"3023\" data-end=\"3070\"\u003eQ3: Are these wires safe for saltwater use?\u003c\/strong\u003e\u003cbr data-start=\"3070\" data-end=\"3073\"\u003eA: Yes. They’re designed with marine-rated insulation to handle salt, heat, and vibration.\u003c\/p\u003e\n\u003cp data-start=\"3167\" data-end=\"3343\"\u003e\u003cstrong data-start=\"3167\" data-end=\"3201\"\u003eQ4: Can I install them myself?\u003c\/strong\u003e\u003cbr data-start=\"3201\" data-end=\"3204\"\u003eA: Absolutely. The wires are pre-cut and labeled for easy one-to-one replacement — just match the old wire and push the new one in place.\u003c\/p\u003e\n\u003cp data-start=\"3345\" data-end=\"3542\"\u003e\u003cstrong data-start=\"3345\" data-end=\"3385\"\u003eQ5: Why choose OEM over aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3385\" data-end=\"3388\"\u003eA: OEM wires fit correctly, perform better, and last longer under marine stress. Aftermarket versions may use weaker insulation or incorrect resistance.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936071242019,"sku":"84-816608Q70","price":91.8,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q70_main.jpg?v=1760631220"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-fits-black-scorpion-tow-sports-with-delco-hei-ignition-84-816608q78","title":"Mercury – Quicksilver 816608Q78 Red Wire Spark Plug Wire Kit | MerCruiser Black Scorpion Tow Sports Engines | Delco HEI Ignition | 816608Q78","description":"\u003cp data-start=\"0\" data-end=\"146\"\u003e\u003cstrong data-start=\"0\" data-end=\"144\"\u003eMercury – Quicksilver 816608Q78 Red Wire Spark Plug Wire Kit | MerCruiser Black Scorpion Tow Sports Engines | Delco HEI Ignition | 816608Q78\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"148\" data-end=\"151\"\u003e\n\u003ch3 data-start=\"153\" data-end=\"171\"\u003e\u003cstrong data-start=\"157\" data-end=\"169\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"172\" data-end=\"532\"\u003eThe \u003cstrong data-start=\"176\" data-end=\"230\"\u003eQuicksilver 816608Q78 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e keeps your \u003cstrong data-start=\"242\" data-end=\"289\"\u003eMerCruiser Black Scorpion tow-sports engine\u003c\/strong\u003e firing strong and running clean. Built for \u003cstrong data-start=\"333\" data-end=\"407\"\u003eV8 GM-based marine engines with Delco HEI ignition systems (1997–1998)\u003c\/strong\u003e, this OEM wire set delivers a sharp, reliable spark and the durability you need for hard-pulling performance on the water.\u003c\/p\u003e\n\u003cp data-start=\"534\" data-end=\"803\"\u003eEach wire is precision-cut to the correct length, with pre-fitted boots that snap into place easily. The bright red jacket isn’t just for looks — it’s made from high-temp, marine-grade material that holds up against heat, vibration, and moisture, season after season.\u003c\/p\u003e\n\u003chr data-start=\"805\" data-end=\"808\"\u003e\n\u003ch3 data-start=\"810\" data-end=\"832\"\u003e\u003cstrong data-start=\"814\" data-end=\"830\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"835\" data-end=\"942\"\u003e\n\u003cstrong data-start=\"835\" data-end=\"847\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or corroded spark plug wires for stronger ignition and consistent performance.\u003c\/li\u003e\n\u003cli data-start=\"945\" data-end=\"1063\"\u003e\n\u003cstrong data-start=\"945\" data-end=\"957\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"962\" data-end=\"1023\"\u003eV8 GM-based MerCruiser Black Scorpion engines (1997–1998)\u003c\/strong\u003e using \u003cstrong data-start=\"1030\" data-end=\"1060\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1066\" data-end=\"1182\"\u003e\n\u003cstrong data-start=\"1066\" data-end=\"1083\"\u003eKit Contents:\u003c\/strong\u003e Includes a \u003cstrong data-start=\"1095\" data-end=\"1131\"\u003ecomplete set of 8 red plug wires\u003c\/strong\u003e with pre-installed boots for quick installation.\u003c\/li\u003e\n\u003cli data-start=\"1185\" data-end=\"1304\"\u003e\n\u003cstrong data-start=\"1185\" data-end=\"1196\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1210\" data-end=\"1227\"\u003ecustom-length\u003c\/strong\u003e to fit cleanly and reach the correct plug without tension or excess slack.\u003c\/li\u003e\n\u003cli data-start=\"1307\" data-end=\"1433\"\u003e\n\u003cstrong data-start=\"1307\" data-end=\"1329\"\u003eMarine Durability:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1340\" data-end=\"1407\"\u003eefficiency, endurance, and resistance to heat and salt exposure\u003c\/strong\u003e in marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1435\" data-end=\"1438\"\u003e\n\u003ch3 data-start=\"1440\" data-end=\"1477\"\u003e\u003cstrong data-start=\"1444\" data-end=\"1475\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1480\" data-end=\"1551\"\u003eMerCruiser Black Scorpion tow-sports engines (V8 GM-based, 1997–1998)\u003c\/li\u003e\n\u003cli data-start=\"1554\" data-end=\"1582\"\u003eDelco HEI ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1585\" data-end=\"1664\"\u003eCommonly used in tournament ski boats, wake boats, and high-torque tow setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1666\" data-end=\"1669\"\u003e\n\u003ch3 data-start=\"1671\" data-end=\"1713\"\u003e\u003cstrong data-start=\"1675\" data-end=\"1711\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1714\" data-end=\"2038\"\u003eIf your ignition feels weak or your idle’s gotten rough, worn plug wires could be the reason. The \u003cstrong data-start=\"1812\" data-end=\"1829\"\u003e816608Q78 kit\u003c\/strong\u003e brings back crisp spark delivery and steady firing across all eight cylinders. Each wire’s low-resistance core ensures full voltage transfer for better combustion, quicker starts, and smoother acceleration.\u003c\/p\u003e\n\u003cp data-start=\"2040\" data-end=\"2338\"\u003eThese wires are tough enough for repeated hot starts, long idle sessions, and hours under load. The marine-grade insulation resists cracking and corrosion, while the snug-fitting boots help keep moisture out. The red jacket gives your engine bay that clean, professional look that’s pure Mercury.\u003c\/p\u003e\n\u003chr data-start=\"2340\" data-end=\"2343\"\u003e\n\u003ch3 data-start=\"2345\" data-end=\"2366\"\u003e\u003cstrong data-start=\"2349\" data-end=\"2364\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2367\" data-end=\"2620\"\u003eWith ignition components, precision matters. Mercury’s OEM wires are designed specifically for their marine engines — not repurposed automotive sets. Each wire is tested for correct resistance, flexibility, and heat resistance to handle marine stress.\u003c\/p\u003e\n\u003cp data-start=\"2622\" data-end=\"2839\"\u003eAftermarket wire kits might be cheaper, but the fit and materials rarely hold up the same way. \u003cstrong data-start=\"2717\" data-end=\"2742\"\u003eQuicksilver OEM wires\u003c\/strong\u003e ensure the right spark, the right length, and the long-term reliability Mercury owners expect.\u003c\/p\u003e\n\u003chr data-start=\"2841\" data-end=\"2844\"\u003e\n\u003ch3 data-start=\"2846\" data-end=\"2859\"\u003e\u003cstrong data-start=\"2850\" data-end=\"2857\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2860\" data-end=\"3046\"\u003e\u003cstrong data-start=\"2860\" data-end=\"2915\"\u003eQ1: What engines fit the Quicksilver 816608Q78 kit?\u003c\/strong\u003e\u003cbr data-start=\"2915\" data-end=\"2918\"\u003eA: It’s made for \u003cstrong data-start=\"2935\" data-end=\"3007\"\u003eV8 GM-based MerCruiser Black Scorpion tow-sports engines (1997–1998)\u003c\/strong\u003e with \u003cstrong data-start=\"3013\" data-end=\"3043\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3048\" data-end=\"3171\"\u003e\u003cstrong data-start=\"3048\" data-end=\"3083\"\u003eQ2: What’s included in the kit?\u003c\/strong\u003e\u003cbr data-start=\"3083\" data-end=\"3086\"\u003eA: A \u003cstrong data-start=\"3091\" data-end=\"3137\"\u003ecomplete set of eight red spark plug wires\u003c\/strong\u003e, each with pre-installed boots.\u003c\/p\u003e\n\u003cp data-start=\"3173\" data-end=\"3348\"\u003e\u003cstrong data-start=\"3173\" data-end=\"3225\"\u003eQ3: Can these wires handle saltwater conditions?\u003c\/strong\u003e\u003cbr data-start=\"3225\" data-end=\"3228\"\u003eA: Yes. They’re built with corrosion-resistant terminals and marine-grade insulation for both salt and freshwater use.\u003c\/p\u003e\n\u003cp data-start=\"3350\" data-end=\"3482\"\u003e\u003cstrong data-start=\"3350\" data-end=\"3383\"\u003eQ4: Are they easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3383\" data-end=\"3386\"\u003eA: Very. Each wire is cut to length — just swap them one by one to maintain your firing order.\u003c\/p\u003e\n\u003cp data-start=\"3484\" data-end=\"3680\"\u003e\u003cstrong data-start=\"3484\" data-end=\"3536\"\u003eQ5: Why choose OEM instead of aftermarket wires?\u003c\/strong\u003e\u003cbr data-start=\"3536\" data-end=\"3539\"\u003eA: OEM wires guarantee the right fit, better spark transfer, and durability tested for marine conditions — no guesswork, no early failures.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936071307555,"sku":"84-816608Q78","price":92.16,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q78_Main.jpg?v=1760631223"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-red-fits-gm-v-8-350-454-502-cid-engines-with-delco-hei-ignition-84-816608q68","title":"Mercury – Quicksilver 816608Q68 Red Wire Spark Plug Wire Kit | GM V8 Marine Engines | Delco HEI Ignition | 816608Q68","description":"\u003cp data-start=\"0\" data-end=\"122\"\u003e\u003cstrong data-start=\"0\" data-end=\"120\"\u003eMercury – Quicksilver 816608Q68 Red Wire Spark Plug Wire Kit | GM V8 Marine Engines | Delco HEI Ignition | 816608Q68\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"124\" data-end=\"127\"\u003e\n\u003ch3 data-start=\"129\" data-end=\"147\"\u003e\u003cstrong data-start=\"133\" data-end=\"145\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"148\" data-end=\"505\"\u003eStrong spark starts with solid connections. The \u003cstrong data-start=\"196\" data-end=\"250\"\u003eQuicksilver 816608Q68 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e gives your \u003cstrong data-start=\"262\" data-end=\"291\"\u003eGM-based V8 marine engine\u003c\/strong\u003e the clean, consistent ignition it was designed for. Built for \u003cstrong data-start=\"354\" data-end=\"396\"\u003eDelco HEI ignition systems (1993–2010)\u003c\/strong\u003e, this complete set of eight red wires delivers reliability, endurance, and a bold OEM look under the cowl.\u003c\/p\u003e\n\u003cp data-start=\"507\" data-end=\"822\"\u003eEach wire is precision-cut for perfect length, routed neatly to each plug without stress or slack. Designed to handle the heat, vibration, and moisture of real boating life, these wires keep your spark strong and your engine firing smooth — whether you’re idling in the marina or pushing wide open across the bay.\u003c\/p\u003e\n\u003chr data-start=\"824\" data-end=\"827\"\u003e\n\u003ch3 data-start=\"829\" data-end=\"851\"\u003e\u003cstrong data-start=\"833\" data-end=\"849\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"854\" data-end=\"964\"\u003e\n\u003cstrong data-start=\"854\" data-end=\"866\"\u003ePurpose:\u003c\/strong\u003e Replaces old or corroded plug wires to restore strong, steady spark across all eight cylinders.\u003c\/li\u003e\n\u003cli data-start=\"967\" data-end=\"1102\"\u003e\n\u003cstrong data-start=\"967\" data-end=\"979\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"984\" data-end=\"1035\"\u003eV8 GM marinized engines (350, 454, and 502 CID)\u003c\/strong\u003e using \u003cstrong data-start=\"1042\" data-end=\"1072\"\u003eDelco HEI ignition systems\u003c\/strong\u003e, model years \u003cstrong data-start=\"1086\" data-end=\"1099\"\u003e1993–2010\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1105\" data-end=\"1221\"\u003e\n\u003cstrong data-start=\"1105\" data-end=\"1122\"\u003eKit Contents:\u003c\/strong\u003e Includes a \u003cstrong data-start=\"1134\" data-end=\"1176\"\u003ecomplete set of 8 red spark plug wires\u003c\/strong\u003e with pre-installed boots at the plug ends.\u003c\/li\u003e\n\u003cli data-start=\"1224\" data-end=\"1313\"\u003e\n\u003cstrong data-start=\"1224\" data-end=\"1235\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1249\" data-end=\"1266\"\u003ecustom-length\u003c\/strong\u003e for precise routing and secure plug seating.\u003c\/li\u003e\n\u003cli data-start=\"1316\" data-end=\"1428\"\u003e\n\u003cstrong data-start=\"1316\" data-end=\"1332\"\u003ePerformance:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1343\" data-end=\"1396\"\u003edurability, efficiency, and electrical insulation\u003c\/strong\u003e in harsh marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1430\" data-end=\"1433\"\u003e\n\u003ch3 data-start=\"1435\" data-end=\"1472\"\u003e\u003cstrong data-start=\"1439\" data-end=\"1470\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1475\" data-end=\"1550\"\u003eV8 GM-based MerCruiser inboard and sterndrive engines (350, 454, 502 CID)\u003c\/li\u003e\n\u003cli data-start=\"1553\" data-end=\"1599\"\u003eDelco HEI ignition systems, 1993–2010 models\u003c\/li\u003e\n\u003cli data-start=\"1602\" data-end=\"1668\"\u003eCommon in sport cruisers, large runabouts, and performance boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1670\" data-end=\"1673\"\u003e\n\u003ch3 data-start=\"1675\" data-end=\"1717\"\u003e\u003cstrong data-start=\"1679\" data-end=\"1715\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1718\" data-end=\"2059\"\u003eThe \u003cstrong data-start=\"1722\" data-end=\"1744\"\u003e816608Q68 wire kit\u003c\/strong\u003e gives your ignition system new life. Each wire is engineered for low resistance and excellent conductivity, delivering consistent voltage from the distributor to every spark plug. That means stronger ignition, smoother starts, and better throttle response — no more misfires or uneven idle from weak connections.\u003c\/p\u003e\n\u003cp data-start=\"2061\" data-end=\"2368\"\u003eThe marine-grade insulation protects against heat, oil, and moisture, while the red jacket adds a clean, custom look to your engine bay. Because each lead is pre-fitted and measured for your setup, installation is simple — just pull the old wires, match them one by one, and press these firmly into place.\u003c\/p\u003e\n\u003chr data-start=\"2370\" data-end=\"2373\"\u003e\n\u003ch3 data-start=\"2375\" data-end=\"2396\"\u003e\u003cstrong data-start=\"2379\" data-end=\"2394\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2397\" data-end=\"2666\"\u003eMercury’s OEM ignition components are built to the same high standards as the engines themselves. Unlike generic wire sets that may be slightly off in length or resistance, \u003cstrong data-start=\"2570\" data-end=\"2591\"\u003eQuicksilver wires\u003c\/strong\u003e are engineered for exact fit and optimal performance under marine loads.\u003c\/p\u003e\n\u003cp data-start=\"2668\" data-end=\"2961\"\u003eAftermarket sets can’t always handle marine heat and vibration, often breaking down or corroding early. With OEM, you’re getting the right wire lengths, correct terminal boots, and the durability tested in Mercury’s own labs. It’s the same ignition quality your engine left the factory with.\u003c\/p\u003e\n\u003chr data-start=\"2963\" data-end=\"2966\"\u003e\n\u003ch3 data-start=\"2968\" data-end=\"2981\"\u003e\u003cstrong data-start=\"2972\" data-end=\"2979\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2982\" data-end=\"3154\"\u003e\u003cstrong data-start=\"2982\" data-end=\"3037\"\u003eQ1: What engines fit the Quicksilver 816608Q68 kit?\u003c\/strong\u003e\u003cbr data-start=\"3037\" data-end=\"3040\"\u003eA: It fits \u003cstrong data-start=\"3051\" data-end=\"3095\"\u003eV8 GM marine engines (350, 454, 502 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"3101\" data-end=\"3131\"\u003eDelco HEI ignition systems\u003c\/strong\u003e, from \u003cstrong data-start=\"3138\" data-end=\"3151\"\u003e1993–2010\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3156\" data-end=\"3290\"\u003e\u003cstrong data-start=\"3156\" data-end=\"3192\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"3192\" data-end=\"3195\"\u003eA: The kit includes a \u003cstrong data-start=\"3217\" data-end=\"3259\"\u003ecomplete set of 8 red spark plug wires\u003c\/strong\u003e, pre-fitted with plug boots.\u003c\/p\u003e\n\u003cp data-start=\"3292\" data-end=\"3463\"\u003e\u003cstrong data-start=\"3292\" data-end=\"3335\"\u003eQ3: Can it handle saltwater conditions?\u003c\/strong\u003e\u003cbr data-start=\"3335\" data-end=\"3338\"\u003eA: Yes. The insulation and terminals are designed to resist corrosion and maintain performance in both salt and freshwater.\u003c\/p\u003e\n\u003cp data-start=\"3465\" data-end=\"3608\"\u003e\u003cstrong data-start=\"3465\" data-end=\"3501\"\u003eQ4: Is installation complicated?\u003c\/strong\u003e\u003cbr data-start=\"3501\" data-end=\"3504\"\u003eA: No. The wires are already cut to length — just replace them one at a time to maintain firing order.\u003c\/p\u003e\n\u003cp data-start=\"3610\" data-end=\"3802\"\u003e\u003cstrong data-start=\"3610\" data-end=\"3670\"\u003eQ5: What are the benefits of OEM wires over aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3670\" data-end=\"3673\"\u003eA: OEM wires ensure perfect fit, proper resistance, and marine-grade durability. They’ll last longer and deliver cleaner spark.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936071340323,"sku":"84-816608Q68","price":86.71,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q68_main.jpg?v=1760631225"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-red-fits-gm-v-8-454-502-cid-engines-with-thunderbolt-iv-v-ignition-84-816608q61","title":"Mercury – Quicksilver 816608Q61 Red Wire Spark Plug Wire Kit | GM V8 Marine Engines (454–502 CID) | Thunderbolt IV \u0026 V Ignition | 816608Q61","description":"\u003cp data-start=\"0\" data-end=\"145\"\u003e\u003cstrong data-start=\"0\" data-end=\"143\"\u003eMercury – Quicksilver 816608Q61 Red Wire Spark Plug Wire Kit | GM V8 Marine Engines (454–502 CID) | Thunderbolt IV \u0026amp; V Ignition | 816608Q61\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"147\" data-end=\"150\"\u003e\n\u003ch3 data-start=\"152\" data-end=\"170\"\u003e\u003cstrong data-start=\"156\" data-end=\"168\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"171\" data-end=\"580\"\u003eThe right spark plug wires can bring an older engine back to life. The \u003cstrong data-start=\"242\" data-end=\"296\"\u003eQuicksilver 816608Q61 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e is designed for \u003cstrong data-start=\"313\" data-end=\"369\"\u003evintage V8 GM-based MerCruiser engines (454–502 CID)\u003c\/strong\u003e using \u003cstrong data-start=\"376\" data-end=\"429\"\u003eThunderbolt IV and V ignition systems (1981–1997)\u003c\/strong\u003e. Built to Mercury’s standards, this OEM set keeps your ignition system firing clean and strong, restoring smooth starts and crisp throttle response.\u003c\/p\u003e\n\u003cp data-start=\"582\" data-end=\"808\"\u003eEach wire is precision-cut to factory length, finished in a tough red jacket that resists heat and moisture. It’s a direct-fit upgrade that installs easily and looks great while keeping your engine running the way it should.\u003c\/p\u003e\n\u003chr data-start=\"810\" data-end=\"813\"\u003e\n\u003ch3 data-start=\"815\" data-end=\"837\"\u003e\u003cstrong data-start=\"819\" data-end=\"835\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"840\" data-end=\"929\"\u003e\n\u003cstrong data-start=\"840\" data-end=\"852\"\u003ePurpose:\u003c\/strong\u003e Replaces old or damaged wires to restore clean, consistent spark delivery.\u003c\/li\u003e\n\u003cli data-start=\"932\" data-end=\"1057\"\u003e\n\u003cstrong data-start=\"932\" data-end=\"944\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"949\" data-end=\"997\"\u003eV8 GM-based MerCruiser engines (454–502 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"1003\" data-end=\"1054\"\u003eThunderbolt IV \u0026amp; V ignition systems (1981–1997)\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1060\" data-end=\"1184\"\u003e\n\u003cstrong data-start=\"1060\" data-end=\"1077\"\u003eKit Contents:\u003c\/strong\u003e Includes a \u003cstrong data-start=\"1089\" data-end=\"1131\"\u003efull set of eight red spark plug wires\u003c\/strong\u003e with pre-installed boots for plug-end connections.\u003c\/li\u003e\n\u003cli data-start=\"1187\" data-end=\"1280\"\u003e\n\u003cstrong data-start=\"1187\" data-end=\"1198\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1212\" data-end=\"1229\"\u003ecustom-length\u003c\/strong\u003e for the correct plug location and clean routing.\u003c\/li\u003e\n\u003cli data-start=\"1283\" data-end=\"1390\"\u003e\n\u003cstrong data-start=\"1283\" data-end=\"1305\"\u003eMarine Durability:\u003c\/strong\u003e Built for \u003cstrong data-start=\"1316\" data-end=\"1360\"\u003eheat, vibration, and moisture resistance\u003c\/strong\u003e in harsh marine conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1392\" data-end=\"1395\"\u003e\n\u003ch3 data-start=\"1397\" data-end=\"1434\"\u003e\u003cstrong data-start=\"1401\" data-end=\"1432\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1437\" data-end=\"1488\"\u003eGM-based V8 MerCruiser engines (454 CID, 502 CID)\u003c\/li\u003e\n\u003cli data-start=\"1491\" data-end=\"1542\"\u003eThunderbolt IV and V ignition systems (1981–1997)\u003c\/li\u003e\n\u003cli data-start=\"1545\" data-end=\"1621\"\u003eCommon on performance cruisers, large tow boats, and classic offshore rigs\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1623\" data-end=\"1626\"\u003e\n\u003ch3 data-start=\"1628\" data-end=\"1670\"\u003e\u003cstrong data-start=\"1632\" data-end=\"1668\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1671\" data-end=\"1993\"\u003eThe \u003cstrong data-start=\"1675\" data-end=\"1697\"\u003e816608Q61 wire kit\u003c\/strong\u003e keeps spark energy strong and even across all eight cylinders. With low-resistance cores and tight-fitting boots, these wires deliver full voltage for easy starts, smooth idle, and better fuel burn. You’ll feel the difference — quicker throttle response and a cleaner pull when you open it up.\u003c\/p\u003e\n\u003cp data-start=\"1995\" data-end=\"2225\"\u003eThe marine-grade insulation stands up to heat, vibration, and salt exposure without cracking or fading. The red jacket gives your engine bay a sharp, clean look while providing a durable layer of protection that lasts for years.\u003c\/p\u003e\n\u003chr data-start=\"2227\" data-end=\"2230\"\u003e\n\u003ch3 data-start=\"2232\" data-end=\"2253\"\u003e\u003cstrong data-start=\"2236\" data-end=\"2251\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2254\" data-end=\"2596\"\u003eMercury’s OEM ignition components are purpose-built for marine use — not rebranded automotive parts. Every Quicksilver wire set is tested for correct resistance, length, and durability in the toughest environments. Aftermarket kits often fall short, with materials that degrade faster or mismatched wire lengths that throw off spark timing.\u003c\/p\u003e\n\u003cp data-start=\"2598\" data-end=\"2798\"\u003eWith a \u003cstrong data-start=\"2605\" data-end=\"2637\"\u003egenuine Quicksilver wire kit\u003c\/strong\u003e, you get the right fit, the right resistance, and the same performance your engine had when it was new. It’s reliable, tested, and made for life on the water.\u003c\/p\u003e\n\u003chr data-start=\"2800\" data-end=\"2803\"\u003e\n\u003ch3 data-start=\"2805\" data-end=\"2818\"\u003e\u003cstrong data-start=\"2809\" data-end=\"2816\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2819\" data-end=\"2998\"\u003e\u003cstrong data-start=\"2819\" data-end=\"2875\"\u003eQ1: Which engines use the Quicksilver 816608Q61 kit?\u003c\/strong\u003e\u003cbr data-start=\"2875\" data-end=\"2878\"\u003eA: It fits \u003cstrong data-start=\"2889\" data-end=\"2937\"\u003eV8 GM-based MerCruiser engines (454–502 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"2943\" data-end=\"2995\"\u003eThunderbolt IV or V ignition systems (1981–1997)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3000\" data-end=\"3120\"\u003e\u003cstrong data-start=\"3000\" data-end=\"3036\"\u003eQ2: How many wires are included?\u003c\/strong\u003e\u003cbr data-start=\"3036\" data-end=\"3039\"\u003eA: The kit includes \u003cstrong data-start=\"3059\" data-end=\"3078\"\u003eeight red wires\u003c\/strong\u003e, each pre-fitted with spark plug boots.\u003c\/p\u003e\n\u003cp data-start=\"3122\" data-end=\"3253\"\u003e\u003cstrong data-start=\"3122\" data-end=\"3161\"\u003eQ3: Can these be used in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3161\" data-end=\"3164\"\u003eA: Yes. They’re made from marine-rated materials that resist corrosion, salt, and heat.\u003c\/p\u003e\n\u003cp data-start=\"3255\" data-end=\"3390\"\u003e\u003cstrong data-start=\"3255\" data-end=\"3288\"\u003eQ4: Are they easy to install?\u003c\/strong\u003e\u003cbr data-start=\"3288\" data-end=\"3291\"\u003eA: Very. Replace one wire at a time to keep your firing order straight — no special tools needed.\u003c\/p\u003e\n\u003cp data-start=\"3392\" data-end=\"3564\"\u003e\u003cstrong data-start=\"3392\" data-end=\"3421\"\u003eQ5: Why choose OEM wires?\u003c\/strong\u003e\u003cbr data-start=\"3421\" data-end=\"3424\"\u003eA: OEM wires fit perfectly, perform better, and last longer under marine stress. You’ll get factory-quality performance without guesswork.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936071373091,"sku":"84-816608Q61","price":88.05,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q61_main.jpg?v=1760631220"},{"product_id":"mercury-mercruiser-spark-plug-wire-kit-red-fits-gm-v-6-262-cid-engines-with-delco-hei-ignition-84-816608q82","title":"Mercury – Quicksilver 816608Q82 Red Wire Spark Plug Wire Kit | V6 GM MerCruiser Engines (262 CID) | Delco HEI Ignition | 816608Q82","description":"\u003cp data-start=\"0\" data-end=\"136\"\u003e\u003cstrong data-start=\"0\" data-end=\"134\"\u003eMercury – Quicksilver 816608Q82 Red Wire Spark Plug Wire Kit | V6 GM MerCruiser Engines (262 CID) | Delco HEI Ignition | 816608Q82\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"138\" data-end=\"141\"\u003e\n\u003ch3 data-start=\"143\" data-end=\"161\"\u003e\u003cstrong data-start=\"147\" data-end=\"159\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"162\" data-end=\"472\"\u003eIf your MerCruiser isn’t running as smooth as it used to, weak or worn plug wires could be to blame. The \u003cstrong data-start=\"267\" data-end=\"321\"\u003eQuicksilver 816608Q82 Red Wire Spark Plug Wire Kit\u003c\/strong\u003e restores clean ignition and steady power to your \u003cstrong data-start=\"371\" data-end=\"424\"\u003eV6 GM-based 262 CID MerCruiser engine (1996–2001)\u003c\/strong\u003e equipped with \u003cstrong data-start=\"439\" data-end=\"469\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"474\" data-end=\"790\"\u003eEach wire in this OEM kit is precision-cut to the proper length, finished in a bright red marine-grade jacket, and fitted with snug, pre-installed boots that keep moisture out and spark in. It’s a simple swap that delivers better throttle response, easier starts, and the reliable performance your engine deserves.\u003c\/p\u003e\n\u003chr data-start=\"792\" data-end=\"795\"\u003e\n\u003ch3 data-start=\"797\" data-end=\"819\"\u003e\u003cstrong data-start=\"801\" data-end=\"817\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"822\" data-end=\"923\"\u003e\n\u003cstrong data-start=\"822\" data-end=\"834\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or damaged plug wires to restore consistent spark and reliable ignition.\u003c\/li\u003e\n\u003cli data-start=\"926\" data-end=\"1058\"\u003e\n\u003cstrong data-start=\"926\" data-end=\"938\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"943\" data-end=\"978\"\u003eV6 MerCruiser engines (262 CID)\u003c\/strong\u003e built by \u003cstrong data-start=\"988\" data-end=\"1018\"\u003eGeneral Motors (1996–2001)\u003c\/strong\u003e using \u003cstrong data-start=\"1025\" data-end=\"1055\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1061\" data-end=\"1173\"\u003e\n\u003cstrong data-start=\"1061\" data-end=\"1078\"\u003eKit Contents:\u003c\/strong\u003e Complete \u003cstrong data-start=\"1088\" data-end=\"1123\"\u003eset of six red spark plug wires\u003c\/strong\u003e with pre-installed boots for quick replacement.\u003c\/li\u003e\n\u003cli data-start=\"1176\" data-end=\"1268\"\u003e\n\u003cstrong data-start=\"1176\" data-end=\"1187\"\u003eDesign:\u003c\/strong\u003e Each wire is \u003cstrong data-start=\"1201\" data-end=\"1218\"\u003ecustom-length\u003c\/strong\u003e to reach the correct plug cleanly and securely.\u003c\/li\u003e\n\u003cli data-start=\"1271\" data-end=\"1378\"\u003e\n\u003cstrong data-start=\"1271\" data-end=\"1293\"\u003eMarine Durability:\u003c\/strong\u003e Built to withstand \u003cstrong data-start=\"1313\" data-end=\"1346\"\u003eheat, vibration, and moisture\u003c\/strong\u003e found in marine environments.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1380\" data-end=\"1383\"\u003e\n\u003ch3 data-start=\"1385\" data-end=\"1422\"\u003e\u003cstrong data-start=\"1389\" data-end=\"1420\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1425\" data-end=\"1490\"\u003eGM-based V6 (262 CID) MerCruiser inboard and sterndrive engines\u003c\/li\u003e\n\u003cli data-start=\"1493\" data-end=\"1544\"\u003eDelco HEI ignition systems, model years 1996–2001\u003c\/li\u003e\n\u003cli data-start=\"1547\" data-end=\"1630\"\u003eCommon on mid-size cruisers, tow boats, and multi-purpose inboard\/outboard setups\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1632\" data-end=\"1635\"\u003e\n\u003ch3 data-start=\"1637\" data-end=\"1679\"\u003e\u003cstrong data-start=\"1641\" data-end=\"1677\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1680\" data-end=\"2000\"\u003eThe \u003cstrong data-start=\"1684\" data-end=\"1706\"\u003e816608Q82 wire kit\u003c\/strong\u003e brings your ignition system back to life. Each wire’s low-resistance core provides efficient voltage transfer, ensuring each cylinder fires strong and on time. That means smoother idle, improved acceleration, and more dependable starts — even after long layups or cold mornings on the water.\u003c\/p\u003e\n\u003cp data-start=\"2002\" data-end=\"2264\"\u003eThe heavy-duty red insulation resists cracking and fading under high heat, while the snug-fitting boots keep moisture and corrosion at bay. With the wires cut to exact OEM lengths, installation is easy — just replace one at a time, and you’re back in business.\u003c\/p\u003e\n\u003chr data-start=\"2266\" data-end=\"2269\"\u003e\n\u003ch3 data-start=\"2271\" data-end=\"2292\"\u003e\u003cstrong data-start=\"2275\" data-end=\"2290\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2293\" data-end=\"2545\"\u003eMercury’s OEM wire kits are designed specifically for marine applications — not rebranded automotive parts. Every wire is tested for correct length, flexibility, resistance, and insulation integrity to handle salt spray, heat, and constant vibration.\u003c\/p\u003e\n\u003cp data-start=\"2547\" data-end=\"2827\"\u003eAftermarket sets can look similar but often miss on quality. The insulation breaks down faster, lengths don’t match perfectly, and electrical resistance can vary. A \u003cstrong data-start=\"2712\" data-end=\"2744\"\u003egenuine Quicksilver wire kit\u003c\/strong\u003e ensures the exact fit, clean routing, and performance your engine was built for.\u003c\/p\u003e\n\u003chr data-start=\"2829\" data-end=\"2832\"\u003e\n\u003ch3 data-start=\"2834\" data-end=\"2847\"\u003e\u003cstrong data-start=\"2838\" data-end=\"2845\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2848\" data-end=\"3012\"\u003e\u003cstrong data-start=\"2848\" data-end=\"2903\"\u003eQ1: What engines use the Quicksilver 816608Q82 kit?\u003c\/strong\u003e\u003cbr data-start=\"2903\" data-end=\"2906\"\u003eA: It fits \u003cstrong data-start=\"2917\" data-end=\"2961\"\u003eV6 GM-based MerCruiser engines (262 CID)\u003c\/strong\u003e with \u003cstrong data-start=\"2967\" data-end=\"3009\"\u003eDelco HEI ignition systems (1996–2001)\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3014\" data-end=\"3143\"\u003e\u003cstrong data-start=\"3014\" data-end=\"3049\"\u003eQ2: What’s included in the kit?\u003c\/strong\u003e\u003cbr data-start=\"3049\" data-end=\"3052\"\u003eA: A \u003cstrong data-start=\"3057\" data-end=\"3101\"\u003ecomplete set of six red spark plug wires\u003c\/strong\u003e, each pre-fitted with spark plug boots.\u003c\/p\u003e\n\u003cp data-start=\"3145\" data-end=\"3293\"\u003e\u003cstrong data-start=\"3145\" data-end=\"3184\"\u003eQ3: Can these be used in saltwater?\u003c\/strong\u003e\u003cbr data-start=\"3184\" data-end=\"3187\"\u003eA: Yes. The insulation and terminals are corrosion-resistant and built for both fresh and saltwater use.\u003c\/p\u003e\n\u003cp data-start=\"3295\" data-end=\"3454\"\u003e\u003cstrong data-start=\"3295\" data-end=\"3328\"\u003eQ4: How easy is installation?\u003c\/strong\u003e\u003cbr data-start=\"3328\" data-end=\"3331\"\u003eA: Very simple — the wires are pre-cut and ready to install. Replace one wire at a time to keep the firing order correct.\u003c\/p\u003e\n\u003cp data-start=\"3456\" data-end=\"3618\"\u003e\u003cstrong data-start=\"3456\" data-end=\"3502\"\u003eQ5: Why choose OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3502\" data-end=\"3505\"\u003eA: OEM wires deliver factory-quality fit and spark performance, lasting longer in the tough marine environment.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936071569699,"sku":"84-816608Q82","price":80.9,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/816608q82_main.jpg?v=1760631221"}],"url":"https:\/\/partsvu.com\/en-au\/collections\/mercruiser-spark-plug-wire-kits.oembed","provider":"PartsVu","version":"1.0","type":"link"}