{"product_id":"mercury-mercruiser-cap-and-rotor-kit-fits-gm-v-8-engines-with-thunderbolt-iv-v-hei-ignitions-805759t3","title":"Mercury – Cap and Rotor Kit | For GM V8 MerCruiser Engines with Thunderbolt IV \u0026 V Systems | 805759T3","description":"\u003cp data-start=\"0\" data-end=\"107\"\u003e\u003cstrong data-start=\"0\" data-end=\"105\"\u003eMercury – Cap and Rotor Kit | For GM V8 MerCruiser Engines with Thunderbolt IV \u0026amp; V Systems | 805759T3\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"109\" data-end=\"112\"\u003e\n\u003ch3 data-start=\"114\" data-end=\"132\"\u003e\u003cstrong data-start=\"118\" data-end=\"130\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"133\" data-end=\"700\"\u003eA strong, reliable spark is the backbone of every good running engine. The \u003cstrong data-start=\"208\" data-end=\"253\"\u003eMercury Marine 805759T3 Cap and Rotor Kit\u003c\/strong\u003e restores smooth ignition performance to your \u003cstrong data-start=\"299\" data-end=\"325\"\u003eGM-based V8 MerCruiser\u003c\/strong\u003e equipped with \u003cstrong data-start=\"340\" data-end=\"384\"\u003eThunderbolt IV or V HEI ignition systems\u003c\/strong\u003e. Built with durable marine-grade materials, this kit is designed to handle the heat, vibration, and humidity that come with boating. With precision-molded components and corrosion-resistant brass contacts, it delivers consistent spark timing — helping your engine fire clean, idle smooth, and perform at its best.\u003c\/p\u003e\n\u003chr data-start=\"702\" data-end=\"705\"\u003e\n\u003ch3 data-start=\"707\" data-end=\"729\"\u003e\u003cstrong data-start=\"711\" data-end=\"727\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"732\" data-end=\"814\"\u003e\n\u003cstrong data-start=\"732\" data-end=\"744\"\u003ePurpose:\u003c\/strong\u003e Replaces worn ignition components to restore smooth spark delivery.\u003c\/li\u003e\n\u003cli data-start=\"817\" data-end=\"904\"\u003e\n\u003cstrong data-start=\"817\" data-end=\"828\"\u003eDesign:\u003c\/strong\u003e Includes a \u003cstrong data-start=\"840\" data-end=\"878\"\u003edistributor cap, rotor, and gasket\u003c\/strong\u003e built to OEM standards.\u003c\/li\u003e\n\u003cli data-start=\"907\" data-end=\"1008\"\u003e\n\u003cstrong data-start=\"907\" data-end=\"924\"\u003eConstruction:\u003c\/strong\u003e Molded from a \u003cstrong data-start=\"939\" data-end=\"960\"\u003ePBT\/PET composite\u003c\/strong\u003e for strength, stiffness, and heat resistance.\u003c\/li\u003e\n\u003cli data-start=\"1011\" data-end=\"1114\"\u003e\n\u003cstrong data-start=\"1011\" data-end=\"1027\"\u003ePerformance:\u003c\/strong\u003e \u003cstrong data-start=\"1028\" data-end=\"1056\"\u003eCoated brass rotor blade\u003c\/strong\u003e ensures clean electrical contact and long service life.\u003c\/li\u003e\n\u003cli data-start=\"1117\" data-end=\"1210\"\u003e\n\u003cstrong data-start=\"1117\" data-end=\"1132\"\u003eProtection:\u003c\/strong\u003e Designed to minimize RFI interference with onboard electronics and sensors.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1212\" data-end=\"1215\"\u003e\n\u003ch3 data-start=\"1217\" data-end=\"1254\"\u003e\u003cstrong data-start=\"1221\" data-end=\"1252\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1257\" data-end=\"1357\"\u003e\n\u003cstrong data-start=\"1257\" data-end=\"1291\"\u003eGM-built V8 MerCruiser engines\u003c\/strong\u003e using \u003cstrong data-start=\"1298\" data-end=\"1355\"\u003eThunderbolt IV and Thunderbolt V HEI ignition systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1359\" data-end=\"1362\"\u003e\n\u003ch3 data-start=\"1364\" data-end=\"1407\"\u003e\u003cstrong data-start=\"1368\" data-end=\"1405\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1408\" data-end=\"1737\"\u003eThe \u003cstrong data-start=\"1412\" data-end=\"1442\"\u003e805759T3 Cap and Rotor Kit\u003c\/strong\u003e keeps your ignition system running like it should. Over time, corrosion, arcing, and heat can wear down the distributor components, leading to misfires, rough idle, or weak throttle response. Installing this Mercury OEM kit restores the spark timing and consistency your engine was built for.\u003c\/p\u003e\n\u003cp data-start=\"1739\" data-end=\"2059\"\u003eThe high-strength housing stays rigid under marine heat, while the brass rotor and terminals provide excellent conductivity and resistance to corrosion. With fresh components, you’ll notice easier starts, smoother acceleration, and a steady idle — exactly what you want when you turn the key and head out on the water.\u003c\/p\u003e\n\u003chr data-start=\"2061\" data-end=\"2064\"\u003e\n\u003ch3 data-start=\"2066\" data-end=\"2098\"\u003e\u003cstrong data-start=\"2070\" data-end=\"2096\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2099\" data-end=\"2364\"\u003eThe \u003cstrong data-start=\"2103\" data-end=\"2123\"\u003eMercury 805759T3\u003c\/strong\u003e is a \u003cstrong data-start=\"2129\" data-end=\"2160\"\u003egenuine Mercury Marine part\u003c\/strong\u003e, made to withstand the demanding conditions that aftermarket parts often can’t. While generic kits may fit, they often use inferior materials that warp or fail early, especially in marine environments.\u003c\/p\u003e\n\u003cp data-start=\"2366\" data-end=\"2627\"\u003eMercury’s OEM ignition components are precision-tested to deliver the same spark quality and longevity as the originals installed in new MerCruiser engines. It’s the same kit trusted by factory technicians to keep engines running smooth, reliable, and strong.\u003c\/p\u003e\n\u003chr data-start=\"2629\" data-end=\"2632\"\u003e\n\u003ch3 data-start=\"2634\" data-end=\"2647\"\u003e\u003cstrong data-start=\"2638\" data-end=\"2645\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2649\" data-end=\"2809\"\u003e\u003cstrong data-start=\"2649\" data-end=\"2685\"\u003eQ1: What’s included in this kit?\u003c\/strong\u003e\u003cbr data-start=\"2685\" data-end=\"2688\"\u003eIt includes a \u003cstrong data-start=\"2702\" data-end=\"2759\"\u003edistributor cap, coated brass rotor blade, and gasket\u003c\/strong\u003e — everything needed for a complete replacement.\u003c\/p\u003e\n\u003cp data-start=\"2811\" data-end=\"2948\"\u003e\u003cstrong data-start=\"2811\" data-end=\"2844\"\u003eQ2: What engines does it fit?\u003c\/strong\u003e\u003cbr data-start=\"2844\" data-end=\"2847\"\u003eIt’s made for \u003cstrong data-start=\"2861\" data-end=\"2895\"\u003eGM-built V8 MerCruiser engines\u003c\/strong\u003e with \u003cstrong data-start=\"2901\" data-end=\"2945\"\u003eThunderbolt IV or V HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2950\" data-end=\"3096\"\u003e\u003cstrong data-start=\"2950\" data-end=\"2997\"\u003eQ3: Why replace the cap and rotor together?\u003c\/strong\u003e\u003cbr data-start=\"2997\" data-end=\"3000\"\u003eReplacing both ensures consistent spark timing and strong, even ignition across all cylinders.\u003c\/p\u003e\n\u003cp data-start=\"3098\" data-end=\"3246\"\u003e\u003cstrong data-start=\"3098\" data-end=\"3135\"\u003eQ4: How long do these parts last?\u003c\/strong\u003e\u003cbr data-start=\"3135\" data-end=\"3138\"\u003eThey’re built from \u003cstrong data-start=\"3157\" data-end=\"3194\"\u003emarine-grade composites and brass\u003c\/strong\u003e, lasting several seasons under normal marine use.\u003c\/p\u003e\n\u003cp data-start=\"3248\" data-end=\"3421\"\u003e\u003cstrong data-start=\"3248\" data-end=\"3281\"\u003eQ5: Why OEM over aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3281\" data-end=\"3284\"\u003eBecause \u003cstrong data-start=\"3292\" data-end=\"3313\"\u003eMercury OEM parts\u003c\/strong\u003e are built for precise fit, lasting durability, and corrosion resistance — crucial for marine reliability.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936197071139,"sku":"805759T3","price":56.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/805759t3.jpg?v=1761570213","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-mercruiser-cap-and-rotor-kit-fits-gm-v-8-engines-with-thunderbolt-iv-v-hei-ignitions-805759t3","provider":"PartsVu","version":"1.0","type":"link"}