{"product_id":"mercury-mercruiser-distributor-cap-fits-gm-v-6-engines-with-thunderbolt-iv-v-hei-ignitions-815407a2","title":"Mercury – Quicksilver 815407A2 Distributor Cap Kit | V6 GM MerCruiser Engines | Thunderbolt IV \u0026 V HEI Ignition | 815407A2","description":"\u003cp data-start=\"0\" data-end=\"128\"\u003e\u003cstrong data-start=\"0\" data-end=\"126\"\u003eMercury – Quicksilver 815407A2 Distributor Cap Kit | V6 GM MerCruiser Engines | Thunderbolt IV \u0026amp; V HEI Ignition | 815407A2\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"130\" data-end=\"133\"\u003e\n\u003ch3 data-start=\"135\" data-end=\"153\"\u003e\u003cstrong data-start=\"139\" data-end=\"151\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"154\" data-end=\"508\"\u003eWhen your boat fires up instantly and idles smooth, that’s your ignition system doing its job — and the \u003cstrong data-start=\"258\" data-end=\"302\"\u003eQuicksilver 815407A2 Distributor Cap Kit\u003c\/strong\u003e helps keep it that way. Built for \u003cstrong data-start=\"337\" data-end=\"383\"\u003emarinized V6 MerCruiser engines made by GM\u003c\/strong\u003e using \u003cstrong data-start=\"390\" data-end=\"435\"\u003eThunderbolt IV and V HEI ignition systems\u003c\/strong\u003e, this OEM cap delivers the clean, steady spark your engine depends on.\u003c\/p\u003e\n\u003cp data-start=\"510\" data-end=\"823\"\u003eIt’s made from durable, heat-resistant materials that stand up to marine life — salt spray, vibration, and constant temperature swings. If your engine has been misfiring, idling rough, or showing corrosion around the terminals, this simple replacement will bring your ignition back to factory-fresh reliability.\u003c\/p\u003e\n\u003chr data-start=\"825\" data-end=\"828\"\u003e\n\u003ch3 data-start=\"830\" data-end=\"852\"\u003e\u003cstrong data-start=\"834\" data-end=\"850\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"855\" data-end=\"961\"\u003e\n\u003cstrong data-start=\"855\" data-end=\"867\"\u003ePurpose:\u003c\/strong\u003e Replaces a worn or corroded distributor cap to maintain accurate spark delivery and timing.\u003c\/li\u003e\n\u003cli data-start=\"964\" data-end=\"1087\"\u003e\n\u003cstrong data-start=\"964\" data-end=\"976\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"981\" data-end=\"1024\"\u003eV6 MerCruiser engines by General Motors\u003c\/strong\u003e equipped with \u003cstrong data-start=\"1039\" data-end=\"1084\"\u003eThunderbolt IV and V HEI ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1090\" data-end=\"1206\"\u003e\n\u003cstrong data-start=\"1090\" data-end=\"1107\"\u003eConstruction:\u003c\/strong\u003e Molded from a \u003cstrong data-start=\"1122\" data-end=\"1149\"\u003ePBT\/PET composite blend\u003c\/strong\u003e for superior stiffness and resistance to heat warping.\u003c\/li\u003e\n\u003cli data-start=\"1209\" data-end=\"1336\"\u003e\n\u003cstrong data-start=\"1209\" data-end=\"1233\"\u003eElectrical Contacts:\u003c\/strong\u003e \u003cstrong data-start=\"1234\" data-end=\"1257\"\u003eSolid brass inserts\u003c\/strong\u003e ensure excellent conductivity and corrosion resistance in marine conditions.\u003c\/li\u003e\n\u003cli data-start=\"1339\" data-end=\"1462\"\u003e\n\u003cstrong data-start=\"1339\" data-end=\"1358\"\u003eDesign Benefit:\u003c\/strong\u003e Built to \u003cstrong data-start=\"1368\" data-end=\"1397\"\u003eminimize RFI interference\u003c\/strong\u003e, keeping your onboard electronics and radios free from static.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1464\" data-end=\"1467\"\u003e\n\u003ch3 data-start=\"1469\" data-end=\"1506\"\u003e\u003cstrong data-start=\"1473\" data-end=\"1504\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1509\" data-end=\"1564\"\u003eGM-based V6 MerCruiser sterndrive and inboard engines\u003c\/li\u003e\n\u003cli data-start=\"1567\" data-end=\"1610\"\u003eThunderbolt IV and V HEI ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1613\" data-end=\"1673\"\u003eCommon on sport cruisers, bowriders, and performance boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1675\" data-end=\"1678\"\u003e\n\u003ch3 data-start=\"1680\" data-end=\"1722\"\u003e\u003cstrong data-start=\"1684\" data-end=\"1720\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1723\" data-end=\"2122\"\u003eThe \u003cstrong data-start=\"1727\" data-end=\"1743\"\u003e815407A2 cap\u003c\/strong\u003e plays a big role in how your engine starts, idles, and accelerates. Its brass contacts keep the spark path clean and even, preventing misfires or hesitation under load. The tough PBT\/PET housing keeps its shape even in a hot, enclosed engine compartment, while the RFI-resistant design helps keep electronic systems — like depth finders and radios — running interference-free.\u003c\/p\u003e\n\u003cp data-start=\"2124\" data-end=\"2310\"\u003eReplacing a distributor cap might feel like small maintenance, but it restores the sharp spark timing that gives your motor that confident, effortless sound every boater wants to hear.\u003c\/p\u003e\n\u003chr data-start=\"2312\" data-end=\"2315\"\u003e\n\u003ch3 data-start=\"2317\" data-end=\"2338\"\u003e\u003cstrong data-start=\"2321\" data-end=\"2336\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2339\" data-end=\"2678\"\u003eMercury builds its ignition components specifically for marine conditions, not automotive ones. Their OEM caps are engineered for resistance to salt corrosion, vibration, and long-term heat exposure. Aftermarket caps might look similar, but small differences in materials or internal tolerances can lead to poor sealing or early failure.\u003c\/p\u003e\n\u003cp data-start=\"2680\" data-end=\"2898\"\u003eWhen you use a \u003cstrong data-start=\"2695\" data-end=\"2722\"\u003egenuine Quicksilver cap\u003c\/strong\u003e, you’re putting the same part back on your motor that it had when it left the factory — tested, trusted, and built to last. It’s the right fit and the right fix, every time.\u003c\/p\u003e\n\u003chr data-start=\"2900\" data-end=\"2903\"\u003e\n\u003ch3 data-start=\"2905\" data-end=\"2918\"\u003e\u003cstrong data-start=\"2909\" data-end=\"2916\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2919\" data-end=\"3093\"\u003e\u003cstrong data-start=\"2919\" data-end=\"2969\"\u003eQ1: What engines fit the Quicksilver 815407A2?\u003c\/strong\u003e\u003cbr data-start=\"2969\" data-end=\"2972\"\u003eA: It fits \u003cstrong data-start=\"2983\" data-end=\"3040\"\u003eV6 GM-based MerCruiser sterndrive and inboard engines\u003c\/strong\u003e with \u003cstrong data-start=\"3046\" data-end=\"3090\"\u003eThunderbolt IV or V HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3095\" data-end=\"3222\"\u003e\u003cstrong data-start=\"3095\" data-end=\"3135\"\u003eQ2: Does this kit include the rotor?\u003c\/strong\u003e\u003cbr data-start=\"3135\" data-end=\"3138\"\u003eA: This part includes the \u003cstrong data-start=\"3164\" data-end=\"3188\"\u003edistributor cap only\u003c\/strong\u003e — the rotor is sold separately.\u003c\/p\u003e\n\u003cp data-start=\"3224\" data-end=\"3385\"\u003e\u003cstrong data-start=\"3224\" data-end=\"3263\"\u003eQ3: Is it safe for saltwater boats?\u003c\/strong\u003e\u003cbr data-start=\"3263\" data-end=\"3266\"\u003eA: Yes. The cap’s brass terminals and composite shell resist corrosion and heat in both saltwater and freshwater use.\u003c\/p\u003e\n\u003cp data-start=\"3387\" data-end=\"3518\"\u003e\u003cstrong data-start=\"3387\" data-end=\"3419\"\u003eQ4: Can I install it myself?\u003c\/strong\u003e\u003cbr data-start=\"3419\" data-end=\"3422\"\u003eA: Definitely. With a few hand tools and basic knowledge, you can replace it in under an hour.\u003c\/p\u003e\n\u003cp data-start=\"3520\" data-end=\"3703\"\u003e\u003cstrong data-start=\"3520\" data-end=\"3578\"\u003eQ5: What are signs my distributor cap needs replacing?\u003c\/strong\u003e\u003cbr data-start=\"3578\" data-end=\"3581\"\u003eA: Rough idle, hard starting, or visible corrosion or cracks around the terminals are all signs it’s time for a new one.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936159650083,"sku":"815407A2","price":36.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/815407a2_main.jpg?v=1760631217","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-mercruiser-distributor-cap-fits-gm-v-6-engines-with-thunderbolt-iv-v-hei-ignitions-815407a2","provider":"PartsVu","version":"1.0","type":"link"}