{"product_id":"merc-679","title":"Mercury MerCruiser Ignition Wire Kit 816761Q3","description":"\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv data-message-author-role=\"assistant\" data-message-id=\"338f0257-70c6-426e-8c4c-1862cb2af3c6\" dir=\"auto\" data-message-model-slug=\"gpt-5-3\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal [.text-message+\u0026amp;]:mt-1\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert w-full wrap-break-word dark markdown-new-styling\"\u003e\n\u003ch2 data-section-id=\"f2dq3j\" data-start=\"0\" data-end=\"68\"\u003eMercury \/ MerCruiser Quicksilver \u003cstrong data-start=\"36\" data-end=\"68\"\u003eIgnition Wire Kit — 816761Q3\u003c\/strong\u003e\n\u003c\/h2\u003e\n\u003cp data-start=\"70\" data-end=\"451\"\u003eThe \u003cstrong data-start=\"74\" data-end=\"124\"\u003eMercury Quicksilver 816761Q3 Ignition Wire Kit\u003c\/strong\u003e is a genuine OEM \u003cstrong data-start=\"142\" data-end=\"165\"\u003espark plug wire set\u003c\/strong\u003e designed for \u003cstrong data-start=\"179\" data-end=\"213\"\u003eMerCruiser V8 gasoline engines\u003c\/strong\u003e equipped with Thunderbolt ignition systems. The wires deliver high-voltage current from the ignition coil and distributor to the spark plugs to ensure proper ignition timing and engine performance. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"453\" data-end=\"456\"\u003e\n\u003ch3 data-section-id=\"uvdx3z\" data-start=\"458\" data-end=\"480\"\u003eKey Specifications\u003c\/h3\u003e\n\u003cul data-start=\"481\" data-end=\"725\"\u003e\n\u003cli data-section-id=\"3hmgrv\" data-start=\"481\" data-end=\"510\"\u003e\n\u003cp data-start=\"483\" data-end=\"510\"\u003e\u003cstrong data-start=\"483\" data-end=\"499\"\u003ePart Number:\u003c\/strong\u003e 816761Q3\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"7ll55m\" data-start=\"511\" data-end=\"546\"\u003e\n\u003cp data-start=\"513\" data-end=\"546\"\u003e\u003cstrong data-start=\"513\" data-end=\"532\"\u003eMercury Format:\u003c\/strong\u003e 84-816761Q3\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"io684u\" data-start=\"547\" data-end=\"599\"\u003e\n\u003cp data-start=\"549\" data-end=\"599\"\u003e\u003cstrong data-start=\"549\" data-end=\"568\"\u003eComponent Type:\u003c\/strong\u003e Spark plug ignition wire set\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1537t5o\" data-start=\"600\" data-end=\"639\"\u003e\n\u003cp data-start=\"602\" data-end=\"639\"\u003e\u003cstrong data-start=\"602\" data-end=\"622\"\u003eIgnition System:\u003c\/strong\u003e Thunderbolt IV\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1xvppf9\" data-start=\"640\" data-end=\"725\"\u003e\n\u003cp data-start=\"642\" data-end=\"725\"\u003e\u003cstrong data-start=\"642\" data-end=\"656\"\u003eOEM Brand:\u003c\/strong\u003e Mercury Marine \/ Quicksilver \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"727\" data-end=\"730\"\u003e\n\u003ch3 data-section-id=\"1p4y2xn\" data-start=\"732\" data-end=\"769\"\u003eCompatible Engines \/ Applications\u003c\/h3\u003e\n\u003cp data-start=\"770\" data-end=\"833\"\u003eCommonly used on \u003cstrong data-start=\"787\" data-end=\"821\"\u003eMerCruiser GM-based V8 engines\u003c\/strong\u003e, including:\u003c\/p\u003e\n\u003cul data-start=\"835\" data-end=\"886\"\u003e\n\u003cli data-section-id=\"1q43dw8\" data-start=\"835\" data-end=\"860\"\u003e\n\u003cp data-start=\"837\" data-end=\"860\"\u003e\u003cstrong data-start=\"837\" data-end=\"858\"\u003e305 CID V8 (5.0L)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1fdav27\" data-start=\"861\" data-end=\"886\"\u003e\n\u003cp data-start=\"863\" data-end=\"886\"\u003e\u003cstrong data-start=\"863\" data-end=\"884\"\u003e350 CID V8 (5.7L)\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"888\" data-end=\"1063\"\u003eTypically used on \u003cstrong data-start=\"906\" data-end=\"948\"\u003eright-hand rotation MerCruiser engines\u003c\/strong\u003e with \u003cstrong data-start=\"954\" data-end=\"1022\"\u003eThunderbolt IV ignition systems produced approximately 1981–1993\u003c\/strong\u003e. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1065\" data-end=\"1068\"\u003e\n\u003ch3 data-section-id=\"1212f2c\" data-start=\"1070\" data-end=\"1082\"\u003eFunction\u003c\/h3\u003e\n\u003cp data-start=\"1083\" data-end=\"1281\"\u003eThe ignition wire kit transfers \u003cstrong data-start=\"1115\" data-end=\"1144\"\u003ehigh-voltage spark energy\u003c\/strong\u003e from the ignition coil and distributor to each spark plug in the proper firing order. Correctly functioning ignition wires help provide:\u003c\/p\u003e\n\u003cul data-start=\"1283\" data-end=\"1401\"\u003e\n\u003cli data-section-id=\"zkysxq\" data-start=\"1283\" data-end=\"1315\"\u003e\n\u003cp data-start=\"1285\" data-end=\"1315\"\u003eReliable \u003cstrong data-start=\"1294\" data-end=\"1313\"\u003eengine starting\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1jhplrb\" data-start=\"1316\" data-end=\"1352\"\u003e\n\u003cp data-start=\"1318\" data-end=\"1352\"\u003eSmooth \u003cstrong data-start=\"1325\" data-end=\"1350\"\u003eidle and acceleration\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1np3yx0\" data-start=\"1353\" data-end=\"1401\"\u003e\n\u003cp data-start=\"1355\" data-end=\"1401\"\u003eConsistent \u003cstrong data-start=\"1366\" data-end=\"1401\"\u003espark delivery to all cylinders\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1403\" data-end=\"1613\"\u003eEach wire is manufactured to OEM specifications with \u003cstrong data-start=\"1456\" data-end=\"1483\"\u003emarine-grade insulation\u003c\/strong\u003e designed to withstand heat, vibration, and moisture common in marine engine compartments. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1615\" data-end=\"1618\"\u003e\n\u003ch3 data-section-id=\"1mducwm\" data-start=\"1620\" data-end=\"1655\"\u003eSymptoms of Worn Ignition Wires\u003c\/h3\u003e\n\u003cp data-start=\"1656\" data-end=\"1699\"\u003eA deteriorated ignition wire set may cause:\u003c\/p\u003e\n\u003cul data-start=\"1701\" data-end=\"1794\"\u003e\n\u003cli data-section-id=\"87qohm\" data-start=\"1701\" data-end=\"1722\"\u003e\n\u003cp data-start=\"1703\" data-end=\"1722\"\u003eEngine \u003cstrong data-start=\"1710\" data-end=\"1722\"\u003emisfires\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"hb2z6f\" data-start=\"1723\" data-end=\"1738\"\u003e\n\u003cp data-start=\"1725\" data-end=\"1738\"\u003eHard starting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"1gmo3pk\" data-start=\"1739\" data-end=\"1765\"\u003e\n\u003cp data-start=\"1741\" data-end=\"1765\"\u003eRough idle or hesitation\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-section-id=\"s8yil6\" data-start=\"1766\" data-end=\"1794\"\u003e\n\u003cp data-start=\"1768\" data-end=\"1794\"\u003eReduced engine performance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1796\" data-end=\"1889\"\u003eReplacing the ignition wire kit helps restore proper ignition performance and spark delivery.\u003c\/p\u003e\n\u003chr data-start=\"1891\" data-end=\"1894\"\u003e\n\u003cp data-start=\"1896\" data-end=\"2134\"\u003e⚠️ \u003cstrong data-start=\"1899\" data-end=\"1915\"\u003eFitment Tip:\u003c\/strong\u003e\u003cbr data-start=\"1915\" data-end=\"1918\"\u003eAlways verify compatibility using the \u003cstrong data-start=\"1956\" data-end=\"1990\"\u003eengine model and serial number\u003c\/strong\u003e. MerCruiser engines may use different ignition wire sets depending on the \u003cstrong data-start=\"2065\" data-end=\"2133\"\u003eengine family, rotation direction, and ignition system installed\u003c\/strong\u003e.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003c\/div\u003e\n\u003cp\u003e\u003cbr\u003e\u003c\/p\u003e\n\u003cp\u003eOEM parts ship same or next day for fast Canada wide shipping.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eTechnical Specifications:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eType: Ignition wire kit\u003c\/li\u003e\n\u003cli\u003eCompatible with: Mercury MerCruiser marine engines\u003c\/li\u003e\n\u003cli\u003ePart Number: 816761Q3\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"MERC","offers":[{"title":"Default Title","offer_id":43563882151972,"sku":"816761Q3","price":131.3,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/816761Q3_main.jpg?v=1773362908","url":"https:\/\/marisolmarine.com\/products\/merc-679","provider":"Marisol Marine Company","version":"1.0","type":"link"}