{"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","url":"https:\/\/partsvu.com\/fr-ca\/products\/mercury-mercruiser-spark-plug-wire-kit-red-fits-5-7l-mie-tow-sports-with-thunderbolt-iv-ignition-84-816608q80","provider":"PartsVu","version":"1.0","type":"link"}