{"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","url":"https:\/\/partsvu.com\/en-ca\/products\/mercury-mercruiser-spark-plug-wire-kit-fits-gm-ford-v-8-engines-with-conventional-points-or-thunderbolt-ignition-84-816761q9","provider":"PartsVu","version":"1.0","type":"link"}