{"product_id":"mercury-ngk-ilkar7k-4-33-8m0180173","title":"Mercury – Spark Plug | V12 Verado \u0026 SeaPro Series | Precision-Engineered Metal Core | Priced Individually | 8M0180173","description":"\u003cp\u003e\u003cstrong\u003eMercury – Spark Plug | V12 Verado \u0026amp; SeaPro Series | Precision-Engineered Metal Core | Priced Individually | 8M0180173\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\"\u003eWhen you run a Mercury V12, you’re counting on an engine that answers instantly whether you’re easing out of the marina at sunrise or pushing hard through a rolling offshore swell. There’s a quiet confidence that comes from knowing every ignition cycle fires clean, steady, and strong. \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThese Mercury Marine spark plugs deliver that feeling. They bring a sense of trust you can literally feel under your feet, the kind that lets you focus on the horizon instead of worrying about hesitation, rough idle, or lost power.\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\"\u003eDesigned to deliver consistent ignition in high-output Mercury Marine V12 engines\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePrecision-built NGK-ILKAR7G-9 spark plugs included (set of four)\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngineered metal core for clean, reliable combustion\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOptimized for smooth idle, crisp throttle response, and sustained high-rpm performance\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eManufactured to Mercury Marine’s strict OEM standards for fit and durability\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReplacement for NGK-LKAR7G-9 plugs\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 Mercury 7.6-liter V12 Verado outboards, 600 horsepower\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCompatible with Mercury 7.6-liter V12 SeaPro commercial series outboards, 500 horsepower\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for engines with serial numbers 3B060051 and above\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIdeal for offshore center consoles, heavy commercial hulls, cruisers, and performance fishing boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt for both recreational and demanding commercial applications\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\"\u003eOn a big-power outboard like the Mercury V12, spark energy isn’t just a technical detail—it’s the heartbeat of the whole experience. With these plugs installed, the engine lights off quickly, idles with a confident steadiness, and climbs through the powerband without hesitation. You’ll notice how smooth the throttle feels, how cleanly it holds plane, and how secure the engine sounds when conditions get rough.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThese plugs are built to handle extreme combustion pressures and long hours of operation. Their refined construction helps resist fouling, supports better fuel economy, and keeps the ignition cycle tight and predictable. Whether you’re running long-distance offshore trips or shuttling guests all season, you’ll feel the dependable consistency that only true OEM components provide.\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\"\u003eWhen it comes to ignition components—especially for a powerhouse like the Mercury V12—it’s simply not worth cutting corners. Aftermarket plugs might fit, but they rarely match the exact heat range, electrode design, and long-term durability required for this platform. OEM plugs ensure proper combustion, correct load handling, and reduced long-term maintenance hassles.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eChoosing this Mercury Marine part means you’re giving your engine what it was engineered to run with. It’\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003es a smart, practical decision that pays off in smoother operation, fewer surprises, and a longer service life. When another boater asks what you’re running, you’ll have the confidence of knowing you chose the plug set designed specifically for your engine.\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 Mercury Spark Plug 8M0180173 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\"\u003e fits Mercury 7.6-liter V12 outboards, including the 600 horsepower Verado and 500 horsepower SeaPro models.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What makes these plugs different from aftermarket options?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e They match Mercury’s exact ignition requirements, helping maintain smooth idle, full power delivery, and long-term durability.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I know if this is the correct replacement set for my engine?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your serial number—these plugs fit engines numbered 3B060051 and above.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Can these spark plugs be used in both saltwater and freshwater applications?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes. They’re engineered for the full range of marine environments.\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 Most boat owners can install them with common tools, but always check and set gap per your owner’s manual or cowling decal.\u003c\/span\u003e\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940551577891,"sku":"33-8M0180173","price":27.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8M0180173_Main.jpg?v=1760631559","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-ngk-ilkar7k-4-33-8m0180173","provider":"PartsVu","version":"1.0","type":"link"}