{"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","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-mercruiser-spark-plug-wire-kit-red-fits-gm-v-8-350-454-502-cid-engines-with-delco-hei-ignition-84-816608q68","provider":"PartsVu","version":"1.0","type":"link"}