{"title":"MerCruiser Distributor Caps","description":"","products":[{"product_id":"mercury-mercruiser-distributor-cap-fits-2001-2015-mcm-mie-5-0l-5-7l-6-2l-mpi-engines-with-ecm-555-8m6001106","title":"Mercury Mercruiser - Distributor Cap - Fits 2001-2015 MCM\/MIE 5.0L, 5.7L \u0026 6.2L MPI Engines with ECM 555 - 8M6001106","description":"\u003cp\u003eCAP DISTRIBUTOR  555 ECM  MZ\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935069917475,"sku":"8M6001106","price":88.97,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/8m6001106.jpg?v=1698791869"},{"product_id":"mercury-mercruiser-distributor-cap-fits-mcm-4-3l-mpi-898253t23","title":"Mercury Mercruiser - Distributor Cap - Fits MCM 4.3L MPI - 898253T23","description":"\u003cp\u003eFits MCM 4.3L MPI\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935505404195,"sku":"898253T23","price":94.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/898253t23_main.jpg?v=1760631290"},{"product_id":"mercury-mercruiser-distributor-cap-fits-gm-v-6-engines-with-delco-hei-ignition-850484t2","title":"Mercury – Distributor Cap | Marinized V6 Engines by GM | Delco HEI Ignition |850484T2","description":"\u003ch3 data-start=\"0\" data-end=\"106\"\u003e\u003cstrong data-start=\"4\" data-end=\"106\"\u003eMercury – Distributor Cap | Marinized V6 Engines by GM | Delco HEI Ignition |850484T2\u003c\/strong\u003e\u003c\/h3\u003e\n\u003chr data-start=\"108\" data-end=\"111\"\u003e\n\u003ch3 data-start=\"113\" data-end=\"129\"\u003e\u003cstrong data-start=\"117\" data-end=\"129\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"131\" data-end=\"593\"\u003eIf you’ve spent any time maintaining your own boat, you know that dependable ignition means everything. The \u003cstrong data-start=\"239\" data-end=\"287\"\u003eMercury Quicksilver 850484T2 Distributor Cap\u003c\/strong\u003e is one of those small but vital components that separates a smooth-running engine from a frustrating day at the dock. Built for marinized V6 MerCruiser engines by General Motors, this cap keeps your ignition system firing clean and consistent so your power stays strong and your confidence never wavers.\u003c\/p\u003e\n\u003cp data-start=\"595\" data-end=\"881\"\u003eThere’s something deeply satisfying about turning the key, hearing that steady rumble, and knowing your setup is tuned right. With this Mercury Marine part in place, you get that reassurance every time you head out — whether you’re cruising at sunset or throttling up across open water.\u003c\/p\u003e\n\u003chr data-start=\"883\" data-end=\"886\"\u003e\n\u003ch3 data-start=\"888\" data-end=\"908\"\u003e\u003cstrong data-start=\"892\" data-end=\"908\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"910\" data-end=\"1426\"\u003e\n\u003cli data-start=\"910\" data-end=\"1032\"\u003e\n\u003cp data-start=\"912\" data-end=\"1032\"\u003eDistributor cap designed for \u003cstrong data-start=\"941\" data-end=\"994\"\u003emarinized V6 MerCruiser engines by General Motors\u003c\/strong\u003e with \u003cstrong data-start=\"1000\" data-end=\"1030\"\u003eDelco HEI ignition systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1033\" data-end=\"1138\"\u003e\n\u003cp data-start=\"1035\" data-end=\"1138\"\u003eMade from a blend of \u003cstrong data-start=\"1056\" data-end=\"1080\"\u003ePBT and PET plastics\u003c\/strong\u003e for exceptional strength and resistance to heat warping\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1139\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1141\" data-end=\"1240\"\u003e\u003cstrong data-start=\"1141\" data-end=\"1164\"\u003eSolid brass inserts\u003c\/strong\u003e provide superior conductivity and resist corrosion and electrical pitting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1327\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1327\"\u003eBuilt to minimize \u003cstrong data-start=\"1261\" data-end=\"1281\"\u003eRFI interference\u003c\/strong\u003e for smooth operation of onboard electronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1328\" data-end=\"1426\"\u003e\n\u003cp data-start=\"1330\" data-end=\"1426\"\u003eManufactured to \u003cstrong data-start=\"1346\" data-end=\"1383\"\u003eMercury Marine OEM specifications\u003c\/strong\u003e for long-term performance and protection\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1428\" data-end=\"1431\"\u003e\n\u003ch3 data-start=\"1433\" data-end=\"1468\"\u003e\u003cstrong data-start=\"1437\" data-end=\"1468\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1470\" data-end=\"1810\"\u003e\n\u003cli data-start=\"1470\" data-end=\"1577\"\u003e\n\u003cp data-start=\"1472\" data-end=\"1577\"\u003eFits \u003cstrong data-start=\"1477\" data-end=\"1530\"\u003emarinized V6 MerCruiser engines by General Motors\u003c\/strong\u003e equipped with \u003cstrong data-start=\"1545\" data-end=\"1575\"\u003eDelco HEI ignition systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1578\" data-end=\"1661\"\u003e\n\u003cp data-start=\"1580\" data-end=\"1661\"\u003eSuitable for a wide range of \u003cstrong data-start=\"1609\" data-end=\"1659\"\u003eMerCruiser sterndrive and inboard applications\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1662\" data-end=\"1741\"\u003e\n\u003cp data-start=\"1664\" data-end=\"1741\"\u003eCommonly used in \u003cstrong data-start=\"1681\" data-end=\"1718\"\u003erunabouts, cruisers, sport boats,\u003c\/strong\u003e and \u003cstrong data-start=\"1723\" data-end=\"1739\"\u003ecuddy cabins\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1742\" data-end=\"1810\"\u003e\n\u003cp data-start=\"1744\" data-end=\"1810\"\u003eIdeal for both \u003cstrong data-start=\"1759\" data-end=\"1787\"\u003efreshwater and saltwater\u003c\/strong\u003e boating environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1812\" data-end=\"1815\"\u003e\n\u003ch3 data-start=\"1817\" data-end=\"1857\"\u003e\u003cstrong data-start=\"1821\" data-end=\"1857\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1859\" data-end=\"2217\"\u003eThe \u003cstrong data-start=\"1863\" data-end=\"1903\"\u003eQuicksilver 850484T2 Distributor Cap\u003c\/strong\u003e delivers more than just a spark — it delivers reliability you can feel. With precise engineering and quality materials, it ensures each cylinder fires with clean, even timing, keeping your engine responsive and efficient. You’ll notice smoother acceleration, steadier idling, and consistent top-end performance.\u003c\/p\u003e\n\u003cp data-start=\"2219\" data-end=\"2570\"\u003eThis cap is built tough, using a high-strength plastic blend that resists heat and moisture — two of the toughest challenges in marine environments. Inside, solid brass inserts maintain perfect conductivity, even after years of vibration and exposure. That means fewer misfires, less corrosion, and dependable performance no matter how far you roam.\u003c\/p\u003e\n\u003cp data-start=\"2572\" data-end=\"2849\"\u003eIt’s easy to install, fits cleanly without modification, and immediately brings that feeling of a tight, well-tuned system back to your engine. Once it’s in place, you’ll know it’s done right — the kind of quality that lets you trust your boat like you used to when it was new.\u003c\/p\u003e\n\u003chr data-start=\"2851\" data-end=\"2854\"\u003e\n\u003ch3 data-start=\"2856\" data-end=\"2875\"\u003e\u003cstrong data-start=\"2860\" data-end=\"2875\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2877\" data-end=\"3250\"\u003eBuying a \u003cstrong data-start=\"2886\" data-end=\"2917\"\u003egenuine Mercury Marine part\u003c\/strong\u003e is about more than getting the right fit — it’s about getting lasting value and protection for your investment. Aftermarket caps might look the same, but their materials and tolerances can’t match Mercury’s factory standards. An ill-fitting cap or poor-quality metal can mean arcing, pitting, and performance issues down the line.\u003c\/p\u003e\n\u003cp data-start=\"3252\" data-end=\"3552\"\u003eWith this OEM cap, you’re getting the exact same precision and durability your MerCruiser engine was built with. It fits right the first time, holds up under heat and vibration, and maintains consistent ignition timing trip after trip. In short, it’s peace of mind you can install with a screwdriver.\u003c\/p\u003e\n\u003chr data-start=\"3554\" data-end=\"3557\"\u003e\n\u003ch3 data-start=\"3559\" data-end=\"3570\"\u003e\u003cstrong data-start=\"3563\" data-end=\"3570\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3572\" data-end=\"3752\"\u003e\u003cstrong data-start=\"3572\" data-end=\"3642\"\u003eQ1: Which Mercury engines or systems does the Distributor Cap fit?\u003c\/strong\u003e\u003cbr data-start=\"3642\" data-end=\"3645\"\u003eIt fits \u003cstrong data-start=\"3653\" data-end=\"3688\"\u003emarinized V6 MerCruiser engines\u003c\/strong\u003e made by \u003cstrong data-start=\"3697\" data-end=\"3715\"\u003eGeneral Motors\u003c\/strong\u003e with \u003cstrong data-start=\"3721\" data-end=\"3751\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3754\" data-end=\"3982\"\u003e\u003cstrong data-start=\"3754\" data-end=\"3823\"\u003eQ2: What makes this part different from aftermarket alternatives?\u003c\/strong\u003e\u003cbr data-start=\"3823\" data-end=\"3826\"\u003eMercury uses high-grade plastics and brass inserts engineered for marine conditions, ensuring long life, perfect fit, and dependable electrical performance.\u003c\/p\u003e\n\u003cp data-start=\"3984\" data-end=\"4179\"\u003e\u003cstrong data-start=\"3984\" data-end=\"4054\"\u003eQ3: How do I know if this is the correct replacement for my setup?\u003c\/strong\u003e\u003cbr data-start=\"4054\" data-end=\"4057\"\u003eCheck your owner’s or service manual for \u003cstrong data-start=\"4098\" data-end=\"4122\"\u003epart number 850484T2\u003c\/strong\u003e to confirm compatibility with your V6 MerCruiser engine.\u003c\/p\u003e\n\u003cp data-start=\"4181\" data-end=\"4370\"\u003e\u003cstrong data-start=\"4181\" data-end=\"4252\"\u003eQ4: Can this be used in both saltwater and freshwater applications?\u003c\/strong\u003e\u003cbr data-start=\"4252\" data-end=\"4255\"\u003eYes — it’s made from corrosion-resistant materials built to withstand harsh marine conditions in both environments.\u003c\/p\u003e\n\u003cp data-start=\"4372\" data-end=\"4555\"\u003e\u003cstrong data-start=\"4372\" data-end=\"4433\"\u003eQ5: Is installation straightforward for most boat owners?\u003c\/strong\u003e\u003cbr data-start=\"4433\" data-end=\"4436\"\u003eYes. It’s a direct replacement part that installs easily using standard tools, following your engine manual’s guidance.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935894917411,"sku":"850484T2","price":33.41,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/850484t2_02.jpg?v=1761577598"},{"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"},{"product_id":"mercury-mercruiser-distributor-cap-815407q02","title":"Mercury – Quicksilver 815407Q02 Distributor Cap Kit | V6 GM MerCruiser Engines | Thunderbolt IV \u0026 V HEI Ignition | 815407Q02","description":"\u003cp data-start=\"0\" data-end=\"130\"\u003e\u003cstrong data-start=\"0\" data-end=\"128\"\u003eMercury – Quicksilver 815407Q02 Distributor Cap Kit | V6 GM MerCruiser Engines | Thunderbolt IV \u0026amp; V HEI Ignition | 815407Q02\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"132\" data-end=\"135\"\u003e\n\u003ch3 data-start=\"137\" data-end=\"155\"\u003e\u003cstrong data-start=\"141\" data-end=\"153\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"156\" data-end=\"523\"\u003eWhen you turn the key and that V6 comes to life without a stumble, you can thank a good ignition system. The \u003cstrong data-start=\"265\" data-end=\"310\"\u003eQuicksilver 815407Q02 Distributor Cap Kit\u003c\/strong\u003e helps keep it that way. Built for \u003cstrong data-start=\"345\" data-end=\"386\"\u003emarinized GM-based MerCruiser engines\u003c\/strong\u003e with \u003cstrong data-start=\"392\" data-end=\"428\"\u003eThunderbolt IV or V HEI ignition\u003c\/strong\u003e, this genuine Mercury part keeps the spark clean and steady from idle to wide-open throttle.\u003c\/p\u003e\n\u003cp data-start=\"525\" data-end=\"806\"\u003eIt’s made for the realities of boating — heat, humidity, vibration, and long days on the water. Swap this cap in when the old one starts to show corrosion or cracking, and you’ll notice the difference right away: quicker starts, smoother running, and more dependable performance.\u003c\/p\u003e\n\u003chr data-start=\"808\" data-end=\"811\"\u003e\n\u003ch3 data-start=\"813\" data-end=\"835\"\u003e\u003cstrong data-start=\"817\" data-end=\"833\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"838\" data-end=\"940\"\u003e\n\u003cstrong data-start=\"838\" data-end=\"850\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or corroded distributor caps to restore clean spark and smooth operation.\u003c\/li\u003e\n\u003cli data-start=\"943\" data-end=\"1056\"\u003e\n\u003cstrong data-start=\"943\" data-end=\"955\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"960\" data-end=\"1003\"\u003eV6 MerCruiser engines by General Motors\u003c\/strong\u003e with \u003cstrong data-start=\"1009\" data-end=\"1053\"\u003eThunderbolt IV or V HEI ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1059\" data-end=\"1152\"\u003e\n\u003cstrong data-start=\"1059\" data-end=\"1072\"\u003eMaterial:\u003c\/strong\u003e Molded from a \u003cstrong data-start=\"1087\" data-end=\"1108\"\u003ePBT\/PET composite\u003c\/strong\u003e that resists warping, heat, and cracking.\u003c\/li\u003e\n\u003cli data-start=\"1155\" data-end=\"1239\"\u003e\n\u003cstrong data-start=\"1155\" data-end=\"1168\"\u003eContacts:\u003c\/strong\u003e Uses \u003cstrong data-start=\"1174\" data-end=\"1199\"\u003esolid brass terminals\u003c\/strong\u003e for clean conductivity and long life.\u003c\/li\u003e\n\u003cli data-start=\"1242\" data-end=\"1347\"\u003e\n\u003cstrong data-start=\"1242\" data-end=\"1260\"\u003eDesign Detail:\u003c\/strong\u003e Built to reduce \u003cstrong data-start=\"1277\" data-end=\"1297\"\u003eRFI interference\u003c\/strong\u003e, keeping electronics like radios and GPS clear.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1349\" data-end=\"1352\"\u003e\n\u003ch3 data-start=\"1354\" data-end=\"1391\"\u003e\u003cstrong data-start=\"1358\" data-end=\"1389\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1394\" data-end=\"1449\"\u003eV6 GM-based MerCruiser inboard and sterndrive engines\u003c\/li\u003e\n\u003cli data-start=\"1452\" data-end=\"1495\"\u003eThunderbolt IV and V HEI ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1498\" data-end=\"1547\"\u003eCommon in runabouts, cruisers, and family boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1549\" data-end=\"1552\"\u003e\n\u003ch3 data-start=\"1554\" data-end=\"1596\"\u003e\u003cstrong data-start=\"1558\" data-end=\"1594\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1597\" data-end=\"1959\"\u003eThe \u003cstrong data-start=\"1601\" data-end=\"1614\"\u003e815407Q02\u003c\/strong\u003e might not be the flashiest part on your motor, but it’s one of the most important. It delivers steady spark timing that helps your engine start easier, idle smoother, and stay consistent when you open it up. The brass terminals resist corrosion and keep the current flowing evenly, while the rugged plastic shell stays true under engine heat.\u003c\/p\u003e\n\u003cp data-start=\"1961\" data-end=\"2235\"\u003eYou’ll notice fewer misfires and less hesitation under load, especially if your old cap has been sitting through a few humid seasons. Plus, its RFI-resistant design helps your electronics stay clear and steady — no more buzzing through the speakers when you rev the motor.\u003c\/p\u003e\n\u003chr data-start=\"2237\" data-end=\"2240\"\u003e\n\u003ch3 data-start=\"2242\" data-end=\"2263\"\u003e\u003cstrong data-start=\"2246\" data-end=\"2261\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2264\" data-end=\"2526\"\u003eThere’s a reason seasoned boaters stick with Mercury parts. This cap was built specifically for marine engines, not repurposed from automotive stock. Every material, contact point, and dimension is made to handle constant exposure to salt, vibration, and heat.\u003c\/p\u003e\n\u003cp data-start=\"2528\" data-end=\"2764\"\u003eAftermarket caps can look close but often fall short — soft plastics, loose fits, or weak contacts that cause misfires down the line. With an OEM Quicksilver cap, you get perfect fitment, reliable sealing, and long-term peace of mind.\u003c\/p\u003e\n\u003chr data-start=\"2766\" data-end=\"2769\"\u003e\n\u003ch3 data-start=\"2771\" data-end=\"2784\"\u003e\u003cstrong data-start=\"2775\" data-end=\"2782\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2785\" data-end=\"2938\"\u003e\u003cstrong data-start=\"2785\" data-end=\"2836\"\u003eQ1: What engines use the Quicksilver 815407Q02?\u003c\/strong\u003e\u003cbr data-start=\"2836\" data-end=\"2839\"\u003eA: It fits \u003cstrong data-start=\"2850\" data-end=\"2884\"\u003eV6 GM-based MerCruiser engines\u003c\/strong\u003e with \u003cstrong data-start=\"2890\" data-end=\"2935\"\u003eThunderbolt IV and V HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2940\" data-end=\"3067\"\u003e\u003cstrong data-start=\"2940\" data-end=\"2972\"\u003eQ2: Does it include a rotor?\u003c\/strong\u003e\u003cbr data-start=\"2972\" data-end=\"2975\"\u003eA: No, this part includes the \u003cstrong data-start=\"3005\" data-end=\"3029\"\u003edistributor cap only\u003c\/strong\u003e. The rotor is available separately.\u003c\/p\u003e\n\u003cp data-start=\"3069\" data-end=\"3218\"\u003e\u003cstrong data-start=\"3069\" data-end=\"3106\"\u003eQ3: Is it safe for saltwater use?\u003c\/strong\u003e\u003cbr data-start=\"3106\" data-end=\"3109\"\u003eA: Yes. The brass terminals and reinforced housing are built for corrosion resistance in marine conditions.\u003c\/p\u003e\n\u003cp data-start=\"3220\" data-end=\"3385\"\u003e\u003cstrong data-start=\"3220\" data-end=\"3272\"\u003eQ4: How can I tell it’s time to replace the cap?\u003c\/strong\u003e\u003cbr data-start=\"3272\" data-end=\"3275\"\u003eA: Look for cracks, corrosion on the terminals, rough idle, or hesitation — all signs it’s due for a change.\u003c\/p\u003e\n\u003cp data-start=\"3387\" data-end=\"3542\"\u003e\u003cstrong data-start=\"3387\" data-end=\"3419\"\u003eQ5: Can I replace it myself?\u003c\/strong\u003e\u003cbr data-start=\"3419\" data-end=\"3422\"\u003eA: Absolutely. It’s a quick, straightforward job with basic tools — just follow your manual for wire order and torque.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936159944995,"sku":"815407Q02","price":36.52,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/815407q02_main.jpg?v=1760631218"},{"product_id":"mercury-mercruiser-distributor-cap-fits-gm-4-cylinder-engines-with-delco-est-ignition-811635t3","title":"Mercury – Quicksilver 811635T3 Distributor Cap | GM 4-Cylinder Engines | Delco EST Ignition | 811635T3","description":"\u003cp\u003e\u003cstrong data-end=\"106\" data-start=\"0\"\u003eMercury – Quicksilver 811635T3 Distributor Cap | GM 4-Cylinder Engines | Delco EST Ignition | 811635T3\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"113\" data-start=\"110\"\u003e\n\u003ch3 data-end=\"133\" data-start=\"115\"\u003e\u003cstrong data-end=\"131\" data-start=\"119\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"561\" data-start=\"134\"\u003eA reliable start and a steady idle depend on a clean, consistent spark — and that begins right at the distributor. The \u003cstrong data-end=\"293\" data-start=\"253\"\u003eQuicksilver 811635T3 Distributor Cap\u003c\/strong\u003e is the genuine OEM replacement for \u003cstrong data-end=\"375\" data-start=\"329\"\u003emarinized GM 4-cylinder MerCruiser engines\u003c\/strong\u003e equipped with \u003cstrong data-end=\"420\" data-start=\"390\"\u003eDelco EST ignition systems\u003c\/strong\u003e. It’s the same cap Mercury installs at the factory, built to withstand the heat, vibration, and moisture that come with life on the water.\u003c\/p\u003e\n\u003cp data-end=\"737\" data-start=\"563\"\u003eThis part may not look exciting, but it’s one of those quiet heroes under the engine cover. A good cap means fewer misfires, faster starts, and a smoother day on the water.\u003c\/p\u003e\n\u003chr data-end=\"742\" data-start=\"739\"\u003e\n\u003ch3 data-end=\"766\" data-start=\"744\"\u003e\u003cstrong data-end=\"764\" data-start=\"748\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"885\" data-start=\"769\"\u003e\n\u003cstrong data-end=\"781\" data-start=\"769\"\u003ePurpose:\u003c\/strong\u003e Replaces worn or corroded distributor caps to maintain strong, consistent spark across all cylinders.\u003c\/li\u003e\n\u003cli data-end=\"1021\" data-start=\"888\"\u003e\n\u003cstrong data-end=\"900\" data-start=\"888\"\u003eFitment:\u003c\/strong\u003e Designed for \u003cstrong data-end=\"953\" data-start=\"914\"\u003e4-cylinder MerCruiser engines by GM\u003c\/strong\u003e running \u003cstrong data-end=\"1018\" data-start=\"962\"\u003eDelco EST (Electronic Spark Timing) ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-end=\"1155\" data-start=\"1024\"\u003e\n\u003cstrong data-end=\"1045\" data-start=\"1024\"\u003eMaterial Quality:\u003c\/strong\u003e Molded from a \u003cstrong data-end=\"1081\" data-start=\"1060\"\u003ePBT\/PET composite\u003c\/strong\u003e that resists warping, cracking, and thermal stress under constant heat.\u003c\/li\u003e\n\u003cli data-end=\"1280\" data-start=\"1158\"\u003e\n\u003cstrong data-end=\"1182\" data-start=\"1158\"\u003eElectrical Contacts:\u003c\/strong\u003e \u003cstrong data-end=\"1206\" data-start=\"1183\"\u003eSolid brass inserts\u003c\/strong\u003e ensure steady conductivity and resist corrosion and electrical pitting.\u003c\/li\u003e\n\u003cli data-end=\"1408\" data-start=\"1283\"\u003e\n\u003cstrong data-end=\"1301\" data-start=\"1283\"\u003eDesign Detail:\u003c\/strong\u003e Built to reduce \u003cstrong data-end=\"1338\" data-start=\"1318\"\u003eRFI interference\u003c\/strong\u003e, keeping marine electronics like GPS and radios clear and reliable.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1413\" data-start=\"1410\"\u003e\n\u003ch3 data-end=\"1452\" data-start=\"1415\"\u003e\u003cstrong data-end=\"1450\" data-start=\"1419\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1506\" data-start=\"1455\"\u003eGM-based 4-cylinder MerCruiser sterndrive engines\u003c\/li\u003e\n\u003cli data-end=\"1537\" data-start=\"1509\"\u003eDelco EST ignition systems\u003c\/li\u003e\n\u003cli data-end=\"1616\" data-start=\"1540\"\u003eCommon on small runabouts, bowriders, and compact inboard\/sterndrive boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1621\" data-start=\"1618\"\u003e\n\u003ch3 data-end=\"1665\" data-start=\"1623\"\u003e\u003cstrong data-end=\"1663\" data-start=\"1627\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"1978\" data-start=\"1666\"\u003eA distributor cap is a small part that makes a big difference. When your ignition system’s connections are clean and strong, you’ll notice easier starts, smoother idle, and a more responsive throttle. The \u003cstrong data-end=\"1883\" data-start=\"1871\"\u003e811635T3\u003c\/strong\u003e cap keeps spark timing accurate, helping your engine deliver full power and fuel efficiency.\u003c\/p\u003e\n\u003cp data-end=\"2335\" data-start=\"1980\"\u003eMercury’s use of a PBT\/PET composite means this cap won’t warp or crack when the engine compartment gets hot. The \u003cstrong data-end=\"2113\" data-start=\"2094\"\u003ebrass terminals\u003c\/strong\u003e maintain a clean, even connection through every cycle, reducing the risk of arcing or premature wear. And since it’s engineered to limit radio frequency interference, your electronics stay quiet and clear while you run.\u003c\/p\u003e\n\u003chr data-end=\"2340\" data-start=\"2337\"\u003e\n\u003ch3 data-end=\"2363\" data-start=\"2342\"\u003e\u003cstrong data-end=\"2361\" data-start=\"2346\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2619\" data-start=\"2364\"\u003eMercury’s OEM ignition components are built specifically for marine conditions — they’re not rebranded automotive parts. The materials are tougher, the tolerances tighter, and every component is tested to handle salt, spray, and heat over the long haul.\u003c\/p\u003e\n\u003cp data-end=\"2913\" data-start=\"2621\"\u003eAftermarket caps might look the same but often use cheaper plastic and aluminum contacts that don’t hold up. A genuine Mercury part fits perfectly, lasts longer, and performs exactly as the engine’s ignition system was designed to. It’s about doing the job once and knowing it’s done right.\u003c\/p\u003e\n\u003chr data-end=\"2918\" data-start=\"2915\"\u003e\n\u003ch3 data-end=\"2933\" data-start=\"2920\"\u003e\u003cstrong data-end=\"2931\" data-start=\"2924\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"3113\" data-start=\"2934\"\u003e\u003cstrong data-end=\"2989\" data-start=\"2934\"\u003eQ1: What engines does the Quicksilver 811635T3 fit?\u003c\/strong\u003e\u003cbr data-end=\"2992\" data-start=\"2989\"\u003eA: It’s made for \u003cstrong data-end=\"3042\" data-start=\"3009\"\u003e4-cylinder MerCruiser engines\u003c\/strong\u003e built by \u003cstrong data-end=\"3070\" data-start=\"3052\"\u003eGeneral Motors\u003c\/strong\u003e that use \u003cstrong data-end=\"3110\" data-start=\"3080\"\u003eDelco EST ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"3238\" data-start=\"3115\"\u003e\u003cstrong data-end=\"3152\" data-start=\"3115\"\u003eQ2: What’s included in this part?\u003c\/strong\u003e\u003cbr data-end=\"3155\" data-start=\"3152\"\u003eA: This kit includes the \u003cstrong data-end=\"3204\" data-start=\"3180\"\u003edistributor cap only\u003c\/strong\u003e — the rotor is sold separately.\u003c\/p\u003e\n\u003cp data-end=\"3389\" data-start=\"3240\"\u003e\u003cstrong data-end=\"3276\" data-start=\"3240\"\u003eQ3: Can it be used in saltwater?\u003c\/strong\u003e\u003cbr data-end=\"3279\" data-start=\"3276\"\u003eA: Yes. The brass terminals and composite housing resist corrosion in both salt and freshwater environments.\u003c\/p\u003e\n\u003cp data-end=\"3537\" data-start=\"3391\"\u003e\u003cstrong data-end=\"3434\" data-start=\"3391\"\u003eQ4: Will it affect onboard electronics?\u003c\/strong\u003e\u003cbr data-end=\"3437\" data-start=\"3434\"\u003eA: No. It’s designed to prevent \u003cstrong data-end=\"3489\" data-start=\"3469\"\u003eRFI interference\u003c\/strong\u003e, keeping radios and navigation systems clear.\u003c\/p\u003e\n\u003cp data-end=\"3699\" data-start=\"3539\"\u003e\u003cstrong data-end=\"3579\" data-start=\"3539\"\u003eQ5: How often should it be replaced?\u003c\/strong\u003e\u003cbr data-end=\"3582\" data-start=\"3579\"\u003eA: Inspect the cap annually and replace it every 100 hours or as needed if you see corrosion, cracks, or misfiring.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936176066851,"sku":"811635T3","price":13.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/811635t3_main.jpg?v=1760631191"},{"product_id":"mercury-mercruiser-distributor-cap-fits-gm-v-8-engines-with-delco-hei-ignition-except-mpi-engines-with-ecm-555-808483t3","title":"Mercury – Quicksilver 808483T3 Distributor Cap Kit | GM Marinized V8 Engines | Delco HEI Ignition | 808483T3","description":"\u003cp data-start=\"0\" data-end=\"114\"\u003e\u003cstrong data-start=\"0\" data-end=\"112\"\u003eMercury – Quicksilver 808483T3 Distributor Cap Kit | GM Marinized V8 Engines | Delco HEI Ignition | 808483T3\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"116\" data-end=\"119\"\u003e\n\u003ch3 data-start=\"121\" data-end=\"139\"\u003e\u003cstrong data-start=\"125\" data-end=\"137\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"140\" data-end=\"660\"\u003eThere’s a certain confidence that comes when you twist the key and your V8 turns over instantly — no lag, no stumble, just that smooth, deep rumble every boater loves to hear. The \u003cstrong data-start=\"320\" data-end=\"364\"\u003eQuicksilver 808483T3 Distributor Cap Kit\u003c\/strong\u003e helps make that moment reliable every single time. Designed for \u003cstrong data-start=\"429\" data-end=\"495\"\u003eGM-based MerCruiser V8 engines with Delco HEI ignition systems\u003c\/strong\u003e (excluding MPI engines with ECM 555 connectors), this OEM-quality cap keeps your ignition system firing crisp and consistent under the harshest marine conditions.\u003c\/p\u003e\n\u003cp data-start=\"662\" data-end=\"886\"\u003eMercury built this cap for the real world — where heat, moisture, and vibration are constant companions. It’s not the kind of part you’ll think about often, and that’s the point. When it’s doing its job, you won’t have to.\u003c\/p\u003e\n\u003chr data-start=\"888\" data-end=\"891\"\u003e\n\u003ch3 data-start=\"893\" data-end=\"915\"\u003e\u003cstrong data-start=\"897\" data-end=\"913\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"918\" data-end=\"1034\"\u003e\n\u003cstrong data-start=\"918\" data-end=\"930\"\u003ePurpose:\u003c\/strong\u003e Ensures steady spark delivery and precise timing for smooth starts and dependable engine performance.\u003c\/li\u003e\n\u003cli data-start=\"1037\" data-end=\"1172\"\u003e\n\u003cstrong data-start=\"1037\" data-end=\"1049\"\u003eFitment:\u003c\/strong\u003e Fits \u003cstrong data-start=\"1055\" data-end=\"1118\"\u003eV8 MerCruiser engines by GM with Delco HEI ignition systems\u003c\/strong\u003e, excluding \u003cstrong data-start=\"1130\" data-end=\"1169\"\u003eMPI engines with ECM 555 connectors\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"1175\" data-end=\"1309\"\u003e\n\u003cstrong data-start=\"1175\" data-end=\"1192\"\u003eConstruction:\u003c\/strong\u003e Made from a \u003cstrong data-start=\"1205\" data-end=\"1226\"\u003ePBT\/PET composite\u003c\/strong\u003e for superior strength, stiffness, and resistance to heat distortion or cracking.\u003c\/li\u003e\n\u003cli data-start=\"1312\" data-end=\"1441\"\u003e\n\u003cstrong data-start=\"1312\" data-end=\"1338\"\u003eElectrical Components:\u003c\/strong\u003e \u003cstrong data-start=\"1339\" data-end=\"1364\"\u003eSolid brass terminals\u003c\/strong\u003e offer long-lasting conductivity and protect against corrosion and pitting.\u003c\/li\u003e\n\u003cli data-start=\"1444\" data-end=\"1562\"\u003e\n\u003cstrong data-start=\"1444\" data-end=\"1465\"\u003eDesign Advantage:\u003c\/strong\u003e Engineered to reduce \u003cstrong data-start=\"1487\" data-end=\"1507\"\u003eRFI interference\u003c\/strong\u003e that can affect GPS, radios, or onboard electronics.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1564\" data-end=\"1567\"\u003e\n\u003ch3 data-start=\"1569\" data-end=\"1606\"\u003e\u003cstrong data-start=\"1573\" data-end=\"1604\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1609\" data-end=\"1661\"\u003eGM \/ MerCruiser V8 engines (excluding MPI ECM 555)\u003c\/li\u003e\n\u003cli data-start=\"1664\" data-end=\"1692\"\u003eDelco HEI ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1695\" data-end=\"1773\"\u003eCommonly found on inboard cruisers, sterndrive setups, and performance boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1775\" data-end=\"1778\"\u003e\n\u003ch3 data-start=\"1780\" data-end=\"1822\"\u003e\u003cstrong data-start=\"1784\" data-end=\"1820\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1823\" data-end=\"2231\"\u003eThe \u003cstrong data-start=\"1827\" data-end=\"1839\"\u003e808483T3\u003c\/strong\u003e distributor cap delivers more than spark — it delivers consistency. Every start, every throttle pull, every cruise feels cleaner and more predictable because the ignition system isn’t fighting weak or erratic spark transfer. The precision-molded cap keeps terminals perfectly aligned, while the brass inserts maintain a clean, low-resistance connection that stands up to heat and humidity.\u003c\/p\u003e\n\u003cp data-start=\"2233\" data-end=\"2523\"\u003eYou’ll notice smoother idling, quicker starts, and a more stable top-end response. And with its RFI-resistant design, you won’t get that annoying static across your depth finder or radio when the engine’s running. It’s one of those small details that adds up to a better day on the water.\u003c\/p\u003e\n\u003chr data-start=\"2525\" data-end=\"2528\"\u003e\n\u003ch3 data-start=\"2530\" data-end=\"2551\"\u003e\u003cstrong data-start=\"2534\" data-end=\"2549\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2552\" data-end=\"2907\"\u003eMercury’s OEM components are built for the marine environment — not adapted from automotive parts. The materials, tolerances, and coatings are designed to handle salt spray, constant heat cycling, and long periods of storage without failure. Aftermarket parts often cut corners on materials, leading to warping or misfiring that can ruin a weekend fast.\u003c\/p\u003e\n\u003cp data-start=\"2909\" data-end=\"3126\"\u003eWhen you stick with OEM, you’re keeping your ignition system the way Mercury intended — precise, durable, and ready for anything. It’s the kind of part you install once and don’t have to think about again for years.\u003c\/p\u003e\n\u003chr data-start=\"3128\" data-end=\"3131\"\u003e\n\u003ch3 data-start=\"3133\" data-end=\"3146\"\u003e\u003cstrong data-start=\"3137\" data-end=\"3144\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3147\" data-end=\"3335\"\u003e\u003cstrong data-start=\"3147\" data-end=\"3198\"\u003eQ1: Which engines use the Quicksilver 808483T3?\u003c\/strong\u003e\u003cbr data-start=\"3198\" data-end=\"3201\"\u003eA: It fits \u003cstrong data-start=\"3212\" data-end=\"3246\"\u003eGM-based V8 MerCruiser engines\u003c\/strong\u003e with \u003cstrong data-start=\"3252\" data-end=\"3282\"\u003eDelco HEI ignition systems\u003c\/strong\u003e, excluding \u003cstrong data-start=\"3294\" data-end=\"3332\"\u003eMPI models with ECM 555 connectors\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3337\" data-end=\"3565\"\u003e\u003cstrong data-start=\"3337\" data-end=\"3399\"\u003eQ2: What makes this different from other Quicksilver caps?\u003c\/strong\u003e\u003cbr data-start=\"3399\" data-end=\"3402\"\u003eA: The \u003cstrong data-start=\"3409\" data-end=\"3421\"\u003e808483T3\u003c\/strong\u003e is designed for non-MPI HEI systems, offering the same rugged build and fit as other Mercury OEM caps but with specific application coverage.\u003c\/p\u003e\n\u003cp data-start=\"3567\" data-end=\"3767\"\u003e\u003cstrong data-start=\"3567\" data-end=\"3606\"\u003eQ3: Can I install this part myself?\u003c\/strong\u003e\u003cbr data-start=\"3606\" data-end=\"3609\"\u003eA: Yes. It’s a simple replacement for most owners familiar with ignition maintenance. Just label your wires before swapping to maintain proper firing order.\u003c\/p\u003e\n\u003cp data-start=\"3769\" data-end=\"3953\"\u003e\u003cstrong data-start=\"3769\" data-end=\"3812\"\u003eQ4: Is it suitable for saltwater boats?\u003c\/strong\u003e\u003cbr data-start=\"3812\" data-end=\"3815\"\u003eA: Absolutely. The cap’s \u003cstrong data-start=\"3840\" data-end=\"3859\"\u003ebrass terminals\u003c\/strong\u003e and corrosion-resistant housing perform well in both saltwater and freshwater environments.\u003c\/p\u003e\n\u003cp data-start=\"3955\" data-end=\"4119\"\u003e\u003cstrong data-start=\"3955\" data-end=\"4009\"\u003eQ5: Will it interfere with my onboard electronics?\u003c\/strong\u003e\u003cbr data-start=\"4009\" data-end=\"4012\"\u003eA: No. It’s designed to minimize \u003cstrong data-start=\"4045\" data-end=\"4065\"\u003eRFI interference\u003c\/strong\u003e, keeping your electronic systems operating clearly.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936185078051,"sku":"808483T3","price":38.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/808483t3_main.jpg?v=1760631189"},{"product_id":"mercury-mercruiser-distributor-cap-fits-gm-v-8-engines-with-thunderbolt-iv-v-hei-ignitions-805759t1","title":"Mercury – Quicksilver Distributor Cap Kit | For GM V8 MerCruiser Engines with Thunderbolt IV \u0026 V Systems | 805759T1","description":"\u003cp data-start=\"0\" data-end=\"121\"\u003e\u003cstrong data-start=\"0\" data-end=\"119\"\u003eMercury – Quicksilver Distributor Cap Kit | For GM V8 MerCruiser Engines with Thunderbolt IV \u0026amp; V Systems | 805759T1\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"123\" data-end=\"126\"\u003e\n\u003ch3 data-start=\"128\" data-end=\"146\"\u003e\u003cstrong data-start=\"132\" data-end=\"144\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"147\" data-end=\"756\"\u003eWhen your engine starts hesitating, missing, or losing power, it’s often the distributor cap showing its age. The \u003cstrong data-start=\"261\" data-end=\"320\"\u003eMercury Marine 805759T1 Quicksilver Distributor Cap Kit\u003c\/strong\u003e brings back the clean, consistent spark your V8 MerCruiser needs. Designed for \u003cstrong data-start=\"400\" data-end=\"430\"\u003emarinized GM-built engines\u003c\/strong\u003e running \u003cstrong data-start=\"439\" data-end=\"484\"\u003eThunderbolt IV and V HEI ignition systems\u003c\/strong\u003e, this cap is built tough — molded from high-strength composite material and fitted with solid brass terminals that stay clean and resist corrosion. It’s made to take the heat, the vibration, and the salt so your boat keeps firing perfectly every time you hit the water.\u003c\/p\u003e\n\u003chr data-start=\"758\" data-end=\"761\"\u003e\n\u003ch3 data-start=\"763\" data-end=\"785\"\u003e\u003cstrong data-start=\"767\" data-end=\"783\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"788\" data-end=\"872\"\u003e\n\u003cstrong data-start=\"788\" data-end=\"800\"\u003ePurpose:\u003c\/strong\u003e Restores proper spark timing and power delivery across all cylinders.\u003c\/li\u003e\n\u003cli data-start=\"875\" data-end=\"973\"\u003e\n\u003cstrong data-start=\"875\" data-end=\"885\"\u003eBuild:\u003c\/strong\u003e Made from a \u003cstrong data-start=\"898\" data-end=\"919\"\u003ePBT\/PET composite\u003c\/strong\u003e that won’t warp, crack, or break under marine heat.\u003c\/li\u003e\n\u003cli data-start=\"976\" data-end=\"1063\"\u003e\n\u003cstrong data-start=\"976\" data-end=\"989\"\u003eContacts:\u003c\/strong\u003e Uses \u003cstrong data-start=\"995\" data-end=\"1020\"\u003esolid brass terminals\u003c\/strong\u003e for superior conductivity and long life.\u003c\/li\u003e\n\u003cli data-start=\"1066\" data-end=\"1141\"\u003e\n\u003cstrong data-start=\"1066\" data-end=\"1081\"\u003eProtection:\u003c\/strong\u003e Reduces electrical interference with onboard electronics.\u003c\/li\u003e\n\u003cli data-start=\"1144\" data-end=\"1240\"\u003e\n\u003cstrong data-start=\"1144\" data-end=\"1158\"\u003eLongevity:\u003c\/strong\u003e Designed to handle real marine stress — heat, moisture, and constant vibration.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1242\" data-end=\"1245\"\u003e\n\u003ch3 data-start=\"1247\" data-end=\"1284\"\u003e\u003cstrong data-start=\"1251\" data-end=\"1282\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1287\" data-end=\"1346\"\u003e\u003cstrong data-start=\"1287\" data-end=\"1344\"\u003eGM-based V8 MerCruiser sterndrive and inboard engines\u003c\/strong\u003e\u003c\/li\u003e\n\u003cli data-start=\"1349\" data-end=\"1419\"\u003eWorks with \u003cstrong data-start=\"1360\" data-end=\"1417\"\u003eThunderbolt IV and Thunderbolt V HEI ignition systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1421\" data-end=\"1424\"\u003e\n\u003ch3 data-start=\"1426\" data-end=\"1469\"\u003e\u003cstrong data-start=\"1430\" data-end=\"1467\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1470\" data-end=\"1787\"\u003eThe \u003cstrong data-start=\"1474\" data-end=\"1490\"\u003e805759T1 cap\u003c\/strong\u003e helps your ignition system do its job right — delivering a strong, even spark to every cylinder. As caps age, they can collect moisture, build up corrosion, or develop small cracks that weaken performance. Replacing it with this Mercury OEM cap restores consistent ignition and reliable starts.\u003c\/p\u003e\n\u003cp data-start=\"1789\" data-end=\"2046\"\u003eIts high-strength housing stands up to the extreme heat inside your engine compartment, while the brass terminals ensure a clean electrical path. The result? Faster starts, smoother idle, and stronger throttle response — whether you’re cruising or towing.\u003c\/p\u003e\n\u003cp data-start=\"2048\" data-end=\"2138\"\u003eAnd because it’s built for marine use, it holds up in ways automotive caps simply can’t.\u003c\/p\u003e\n\u003chr data-start=\"2140\" data-end=\"2143\"\u003e\n\u003ch3 data-start=\"2145\" data-end=\"2177\"\u003e\u003cstrong data-start=\"2149\" data-end=\"2175\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2178\" data-end=\"2413\"\u003eThe \u003cstrong data-start=\"2182\" data-end=\"2206\"\u003eQuicksilver 805759T1\u003c\/strong\u003e is built by Mercury for Mercury — the same part used in new MerCruiser engines. Aftermarket copies might look similar, but they often use softer plastics or cheaper metals that can corrode and fail early.\u003c\/p\u003e\n\u003cp data-start=\"2415\" data-end=\"2639\"\u003eMercury’s OEM components are tested under real-world marine conditions for strength, heat resistance, and precise fit. You’re not just replacing a part — you’re restoring your engine to factory performance and reliability.\u003c\/p\u003e\n\u003chr data-start=\"2641\" data-end=\"2644\"\u003e\n\u003ch3 data-start=\"2646\" data-end=\"2659\"\u003e\u003cstrong data-start=\"2650\" data-end=\"2657\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2661\" data-end=\"2801\"\u003e\u003cstrong data-start=\"2661\" data-end=\"2703\"\u003eQ1: What engines is this designed for?\u003c\/strong\u003e\u003cbr data-start=\"2703\" data-end=\"2706\"\u003eIt fits \u003cstrong data-start=\"2714\" data-end=\"2748\"\u003eGM-built V8 MerCruiser engines\u003c\/strong\u003e with \u003cstrong data-start=\"2754\" data-end=\"2798\"\u003eThunderbolt IV or V HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2803\" data-end=\"2896\"\u003e\u003cstrong data-start=\"2803\" data-end=\"2838\"\u003eQ2: What’s included in the kit?\u003c\/strong\u003e\u003cbr data-start=\"2838\" data-end=\"2841\"\u003eThe \u003cstrong data-start=\"2845\" data-end=\"2864\"\u003edistributor cap\u003c\/strong\u003e only (rotor sold separately).\u003c\/p\u003e\n\u003cp data-start=\"2898\" data-end=\"3008\"\u003e\u003cstrong data-start=\"2898\" data-end=\"2926\"\u003eQ3: Why brass terminals?\u003c\/strong\u003e\u003cbr data-start=\"2926\" data-end=\"2929\"\u003eBecause \u003cstrong data-start=\"2937\" data-end=\"2969\"\u003ebrass doesn’t corrode easily\u003c\/strong\u003e and delivers a steady, strong spark.\u003c\/p\u003e\n\u003cp data-start=\"3010\" data-end=\"3122\"\u003e\u003cstrong data-start=\"3010\" data-end=\"3042\"\u003eQ4: Can I install it myself?\u003c\/strong\u003e\u003cbr data-start=\"3042\" data-end=\"3045\"\u003eYes — it’s a \u003cstrong data-start=\"3058\" data-end=\"3088\"\u003edirect-fit OEM replacement\u003c\/strong\u003e that installs with basic tools.\u003c\/p\u003e\n\u003cp data-start=\"3124\" data-end=\"3258\"\u003e\u003cstrong data-start=\"3124\" data-end=\"3158\"\u003eQ5: Why use Mercury OEM parts?\u003c\/strong\u003e\u003cbr data-start=\"3158\" data-end=\"3161\"\u003eBecause \u003cstrong data-start=\"3169\" data-end=\"3221\"\u003eOEM means precision, durability, and reliability\u003c\/strong\u003e, built for real marine conditions.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936197234979,"sku":"805759T1","price":55.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/805759t1.jpg?v=1761570189"},{"product_id":"mercury-mercruiser-distributor-cap-fits-gm-v-8-engines-with-thunderbolt-iv-v-hei-ignitions-805759q01","title":"Mercury – Quicksilver Distributor Cap | For Marinized GM V8 MerCruiser Engines with Thunderbolt IV \u0026 V Ignition | 805759Q01","description":"\u003cp data-start=\"0\" data-end=\"129\"\u003e\u003cstrong data-start=\"0\" data-end=\"127\"\u003eMercury – Quicksilver Distributor Cap | For Marinized GM V8 MerCruiser Engines with Thunderbolt IV \u0026amp; V Ignition | 805759Q01\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"131\" data-end=\"134\"\u003e\n\u003ch3 data-start=\"136\" data-end=\"154\"\u003e\u003cstrong data-start=\"140\" data-end=\"152\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"155\" data-end=\"721\"\u003eA strong, clean spark starts with a reliable connection. The \u003cstrong data-start=\"216\" data-end=\"272\"\u003eMercury Marine 805759Q01 Quicksilver Distributor Cap\u003c\/strong\u003e is built specifically for \u003cstrong data-start=\"299\" data-end=\"347\"\u003eV8 MerCruiser engines made by General Motors\u003c\/strong\u003e using \u003cstrong data-start=\"354\" data-end=\"399\"\u003eThunderbolt IV and V HEI ignition systems\u003c\/strong\u003e. Made from a high-strength composite blend, it’s engineered to resist heat, vibration, and corrosion — all while delivering consistent electrical performance. Whether you’re doing a tune-up or replacing worn ignition parts, this OEM cap keeps your spark strong, your idle smooth, and your engine performing at its best.\u003c\/p\u003e\n\u003chr data-start=\"723\" data-end=\"726\"\u003e\n\u003ch3 data-start=\"728\" data-end=\"750\"\u003e\u003cstrong data-start=\"732\" data-end=\"748\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"753\" data-end=\"850\"\u003e\n\u003cstrong data-start=\"753\" data-end=\"765\"\u003ePurpose:\u003c\/strong\u003e Distributes ignition voltage evenly to all cylinders for strong, consistent spark.\u003c\/li\u003e\n\u003cli data-start=\"853\" data-end=\"967\"\u003e\n\u003cstrong data-start=\"853\" data-end=\"870\"\u003eConstruction:\u003c\/strong\u003e Made from a \u003cstrong data-start=\"883\" data-end=\"914\"\u003ePBT and PET composite blend\u003c\/strong\u003e for high strength, stiffness, and heat resistance.\u003c\/li\u003e\n\u003cli data-start=\"970\" data-end=\"1069\"\u003e\n\u003cstrong data-start=\"970\" data-end=\"983\"\u003eContacts:\u003c\/strong\u003e Equipped with \u003cstrong data-start=\"998\" data-end=\"1021\"\u003esolid brass inserts\u003c\/strong\u003e that resist corrosion and electrical pitting.\u003c\/li\u003e\n\u003cli data-start=\"1072\" data-end=\"1159\"\u003e\n\u003cstrong data-start=\"1072\" data-end=\"1088\"\u003ePerformance:\u003c\/strong\u003e Reduces RFI interference to protect onboard electronics and sensors.\u003c\/li\u003e\n\u003cli data-start=\"1162\" data-end=\"1264\"\u003e\n\u003cstrong data-start=\"1162\" data-end=\"1177\"\u003eDurability:\u003c\/strong\u003e High strength-to-weight ratio prevents cracking under thermal and mechanical stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1266\" data-end=\"1269\"\u003e\n\u003ch3 data-start=\"1271\" data-end=\"1308\"\u003e\u003cstrong data-start=\"1275\" data-end=\"1306\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1311\" data-end=\"1383\"\u003e\n\u003cstrong data-start=\"1311\" data-end=\"1346\"\u003eMarinized V8 MerCruiser engines\u003c\/strong\u003e manufactured by \u003cstrong data-start=\"1363\" data-end=\"1381\"\u003eGeneral Motors\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1386\" data-end=\"1450\"\u003eFor models using \u003cstrong data-start=\"1403\" data-end=\"1448\"\u003eThunderbolt IV and V HEI ignition systems\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1452\" data-end=\"1455\"\u003e\n\u003ch3 data-start=\"1457\" data-end=\"1500\"\u003e\u003cstrong data-start=\"1461\" data-end=\"1498\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1501\" data-end=\"1783\"\u003eThe \u003cstrong data-start=\"1505\" data-end=\"1534\"\u003e805759Q01 distributor cap\u003c\/strong\u003e plays a vital role in your ignition system. Over time, heat and moisture can degrade caps, causing misfires, weak spark, or hard starts. Replacing it with this Mercury OEM cap restores strong ignition performance and keeps your timing consistent.\u003c\/p\u003e\n\u003cp data-start=\"1785\" data-end=\"2076\"\u003eIts solid brass terminals provide excellent conductivity and longer service life compared to aluminum alternatives. The housing’s rugged composite design keeps its shape under extreme marine conditions, ensuring reliable spark delivery even during high-load operation or long idle periods.\u003c\/p\u003e\n\u003chr data-start=\"2078\" data-end=\"2081\"\u003e\n\u003ch3 data-start=\"2083\" data-end=\"2115\"\u003e\u003cstrong data-start=\"2087\" data-end=\"2113\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2116\" data-end=\"2389\"\u003eThe \u003cstrong data-start=\"2120\" data-end=\"2145\"\u003eQuicksilver 805759Q01\u003c\/strong\u003e is a \u003cstrong data-start=\"2151\" data-end=\"2182\"\u003egenuine Mercury Marine part\u003c\/strong\u003e, precision-built for MerCruiser ignition systems. Aftermarket caps may look similar but often use lower-grade materials that warp, crack, or corrode faster — especially in humid or saltwater environments.\u003c\/p\u003e\n\u003cp data-start=\"2391\" data-end=\"2604\"\u003eMercury’s OEM design is engineered for exact fit, perfect electrical alignment, and dependable long-term performance. It’s the same cap trusted by Mercury technicians for factory-quality repairs and maintenance.\u003c\/p\u003e\n\u003chr data-start=\"2606\" data-end=\"2609\"\u003e\n\u003ch3 data-start=\"2611\" data-end=\"2624\"\u003e\u003cstrong data-start=\"2615\" data-end=\"2622\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2626\" data-end=\"2783\"\u003e\u003cstrong data-start=\"2626\" data-end=\"2665\"\u003eQ1: What engines does this cap fit?\u003c\/strong\u003e\u003cbr data-start=\"2665\" data-end=\"2668\"\u003eIt’s designed for \u003cstrong data-start=\"2686\" data-end=\"2730\"\u003emarinized GM-built V8 MerCruiser engines\u003c\/strong\u003e with \u003cstrong data-start=\"2736\" data-end=\"2780\"\u003eThunderbolt IV or V HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2785\" data-end=\"2902\"\u003e\u003cstrong data-start=\"2785\" data-end=\"2813\"\u003eQ2: What’s it made from?\u003c\/strong\u003e\u003cbr data-start=\"2813\" data-end=\"2816\"\u003eA durable \u003cstrong data-start=\"2826\" data-end=\"2853\"\u003ePBT\/PET composite blend\u003c\/strong\u003e, reinforced for heat and vibration resistance.\u003c\/p\u003e\n\u003cp data-start=\"2904\" data-end=\"3033\"\u003e\u003cstrong data-start=\"2904\" data-end=\"2947\"\u003eQ3: Are the contacts aluminum or brass?\u003c\/strong\u003e\u003cbr data-start=\"2947\" data-end=\"2950\"\u003eThey’re \u003cstrong data-start=\"2958\" data-end=\"2973\"\u003esolid brass\u003c\/strong\u003e, offering superior conductivity and corrosion resistance.\u003c\/p\u003e\n\u003cp data-start=\"3035\" data-end=\"3175\"\u003e\u003cstrong data-start=\"3035\" data-end=\"3084\"\u003eQ4: How does it help reduce electrical noise?\u003c\/strong\u003e\u003cbr data-start=\"3084\" data-end=\"3087\"\u003eThe design resists \u003cstrong data-start=\"3106\" data-end=\"3126\"\u003eRFI interference\u003c\/strong\u003e, keeping your electronics stable and accurate.\u003c\/p\u003e\n\u003cp data-start=\"3177\" data-end=\"3354\"\u003e\u003cstrong data-start=\"3177\" data-end=\"3215\"\u003eQ5: Why choose an OEM Mercury cap?\u003c\/strong\u003e\u003cbr data-start=\"3215\" data-end=\"3218\"\u003eBecause OEM parts offer \u003cstrong data-start=\"3242\" data-end=\"3306\"\u003eperfect fit, tested performance, and marine-grade durability\u003c\/strong\u003e — something aftermarket options rarely match.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936197300515,"sku":"805759Q01","price":55.56,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/805759t1_1.jpg?v=1761569879"},{"product_id":"mercury-mercruiser-distributer-cap-fits-gm-4-cylinder-engines-with-delco-conventional-ignition-393-9459q1","title":"Mercury – Distributor Cap | Conventional Ignition | PBT\/PET Composite | 9459Q1","description":"\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Distributor Cap | Conventional Ignition | PBT\/PET Composite | 9459Q1\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere’s something reassuring\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e about turning the key on a MerCruiser engine and hearing it fire up instantly, no hesitation, no second guesses. That smooth, confident start comes from a lot of small parts doing their jobs quietly beneath the engine cover—and the distributor cap is one of the most important. The Mercury 9459Q1 Distributor Cap \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis built\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for the kind of reliability you feel every time you pull away from the dock. When you’re running a marinized GM 4-cylinder MerCruiser, this cap helps keep your ignition timing crisp, your engine running steady, and your time on the water worry-free.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for marinized \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e4-cylinder GM MerCruiser engines\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e with conventional ignition\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eConstructed from a durable blend of \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePBT and PET plastics\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for strength and resistance to heat\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSolid brass inserts\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e fight corrosion, arcing, and electrical pitting\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eEngineered to reduce \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eradio frequency interference (RFI)\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e with onboard electronics\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eHigh strength-to-weight ratio helps prevent thermal cracking under extended operation\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to Mercury Marine \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOEM specifications\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for proper fit and long service life\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThe Mercury 9459Q1 Distributor Cap is compatible with:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eMarinized \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eGM-based MerCruiser 4-cylinder engines\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e using conventional ignition systems\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eCommonly found on runabouts, family cruisers, classic sterndrive setups, and older bowriders\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIf your boat runs a carbureted 4-cylinder MerCruiser from the GM family, chances are this cap is the fit you’re looking for.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIn the real world, a distributor cap on a marine engine faces \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003etougher\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e conditions than its automotive counterpart—heat cycles, humidity, vibration, and salt-laden air. This cap \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eis designed\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e with those realities in mind.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eYo\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eu’ll notice the difference through:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSmooth, consistent ignition timing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e that keeps \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eidle\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e steady and \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eacceleration\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e crisp\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eReliable spark distribution\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, even on long days of stop-and-go trolling or high-RPM cruising\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTight, secure fitment\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e that prevents moisture intrusion and misfires\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLong-lasting corrosion resistance\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, thanks to brass terminals and the reinforced composite shell\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWh\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eether you’re easing through a no-wake zone or pushing offshore toward deep water, this distributor cap helps your engine respond cleanly and confidently.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen it comes to ignition components, precision matters. Using an OEM distributor cap ensures:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eThe \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ecorrect internal spacing\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for accurate spark delivery\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eMaterials that withstand \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003emarine-grade temperatures and moisture\u003c\/span\u003e\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eLo\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003enger service intervals and more dependable performance\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eAvoidance of misfires and electrical interference \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eoften\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e caused by generic caps\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuying OEM isn’t just about brand loyalty—it’s about protecting your engine and keeping your time on the water stress-free.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ Section\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which engines does the Mercury 9459Q1 Distributor Cap fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits marinized GM-based 4-cylinder MerCruiser engines using conventional ignition systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: How is this different from aftermarket caps?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt uses \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003emarine-rated\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e materials, brass terminals, and precision tolerances \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003edesigned\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e specifically for MerCruiser engines.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm compatibility?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Check your owner’s manual or match the ignition system type to ensure you have a conventional GM-based 4-cylinder setup.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Is it \u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003egood\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for both freshwater and saltwater use?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes—its composite body and brass inserts are designed to resist corrosion in all environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation simple?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Most boat owners can replace the cap with basic tools by following their service manual.\u003c\/span\u003e\u003c\/h3\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940263940387,"sku":"393-9459Q1","price":27.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/9459q1_main.jpg?v=1760631559"},{"product_id":"mercury-mercruiser-distributor-cap-fits-ford-gm-v-8-engines-with-prestolite-conventional-ignition-392-9766q1","title":"Mercury – Distributor Cap | Prestolite Ignition System | Marine-Grade Polymer | 9766Q1","description":"\u003ch3\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury – Distributor Cap | Prestolite Ignition System | Marine-Grade Polymer | 9766Q1\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h3\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eOverview\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThere’s a certain comfort that comes from turning the key on a V8 MerCruiser and hearing it fire up clean and strong. No coughing, no hesitation—just that familiar rumble that tells you your boat’s ready for another long run. The Quicksilver 9766Q1 Distributor Cap helps keep that confidence alive. I\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003et’s one of those quiet, behind-the-scenes parts that holds everything together, routing spark where it needs to go and keeping your engine’s heartbeat steady whether you’re cruising wide open or easing toward the dock at sunset.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eKey Features\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eDesigned for \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePrestolite conventional ignition systems\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e on V8 MerCruiser engines\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eHigh-strength \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePBT\/PET polymer blend\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for rigidity and resistance to warpage\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSolid brass inserts\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e to fight corrosion and minimize electrical pitting\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eEngineered to \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ereduce RFI interference\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e with onboard electronics\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eExcellent \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003estrength-to-weight ratio\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for durability in hot, demanding engine bays\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cspan data-preserver-spaces=\"true\"\u003eMeets \u003c\/span\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eMercury Marine OEM specifications\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e for precise fit and long service life\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eThis Mercury Marine part is compatible with a range of marinized General Motors–based V8 MerCruiser engines, often found on:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eRunabouts and bowriders\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eClassic sterndrive cruisers\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eTow-sport and waterski boats\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSmall offshore and near-shore fishing boats\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIf your vessel runs a GM-built V8 MerCruiser with a Prestolite conventional ignition, this cap is designed for your system.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA distributor cap isn’t something most boaters think about—until the engine starts missing under load or stumbling during acceleration. When a cap ages, moisture, heat, and corrosion begin to take their toll. That’s when you feel those uneven pulses instead of the smooth, steady pull your V8 is capable of.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIn\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003estalling the Quicksilver 9766Q1 restores that confidence by providing:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eClean, consistent spark delivery\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, reducing misfires and sluggish throttle response\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eA tight, dependable fit\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, keeping internal components protected from moisture and salt intrusion\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eSmooth idle and powerful acceleration\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, even in demanding conditions\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBetter longevity\u003c\/span\u003e\u003c\/strong\u003e\u003cspan data-preserver-spaces=\"true\"\u003e, thanks to corrosion-resistant brass and reinforced polymer\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eYo\u003c\/span\u003e\u003cspan data-preserver-spaces=\"true\"\u003eu can feel the difference on the water—no more second-guessing your ignition when you punch the throttle to clear a swell or steady the boat for a skier.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhy Buy OEM\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eWhen it comes to ignition components, small imperfections create big problems. That’s why seasoned boaters stick with OEM Mercury Marine parts:\u003c\/span\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eBuilt to the exact tolerances your MerCruiser V8 requires\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eLess risk of premature corrosion, cracking, or electrical bleed-over\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eDesigned and tested specifically for the harsh marine environment\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eProvides better long-term value by lasting longer and protecting the rest of the ignition system\u003c\/span\u003e\u003c\/li\u003e\n\u003cli\u003e\u003cspan data-preserver-spaces=\"true\"\u003eEnsures your engine performs the way the manufacturer intended\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003eIt’s the kind of part you install once, trust fully, and forget about—exactly how it should be.\u003c\/span\u003e\u003c\/p\u003e\n\u003ch2\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eFAQ Section\u003c\/span\u003e\u003c\/strong\u003e\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ1: Which Mercury engines does this distributor cap fit?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e It fits V8 MerCruiser engines built by General Motors using Prestolite conventional ignition systems.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ2: What sets it apart from aftermarket versions?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e OEM materials, tighter tolerances, and brass inserts designed for marine corrosion resistance.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ3: How do I confirm it fits my engine?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Match your serial number and ignition system details with your owner’s or service manual.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ4: Is it suitable for both saltwater and freshwater?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Yes—its materials are engineered for harsh marine environments.\u003c\/span\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e\u003cspan data-preserver-spaces=\"true\"\u003eQ5: Is installation straightforward?\u003c\/span\u003e\u003c\/strong\u003e\u003c\/p\u003e\n\u003ch3\u003e\u003cspan data-preserver-spaces=\"true\"\u003e Most boat owners can replace a distributor cap with basic tools and careful labeling of plug wires.\u003c\/span\u003e\u003c\/h3\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940264497443,"sku":"392-9766Q1","price":42.54,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/9766q1_main.jpg?v=1760631547"},{"product_id":"mercury-mercruiser-distributor-cap-gasket-fits-v-8-w-mallory-ignition-391-5076","title":"Mercury Mercruiser - Distributor Cap Gasket - Fits V-8 w\/Mallory Ignition - 391-5076","description":"\u003cp\u003eFits V\"‘8 w\/ Mallory ignition\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940267086115,"sku":"391-5076","price":5.03,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/5076.jpg?v=1698812151"},{"product_id":"mercury-mercruiser-distributor-cap-fits-ford-gm-v-8-engines-with-mallory-ignition-391-5075q1","title":"Mercury – Quicksilver Distributor Cap | Ignition System Component | Brass Terminals | 5075Q1","description":"\u003cp data-start=\"0\" data-end=\"98\"\u003e\u003cstrong data-start=\"0\" data-end=\"96\"\u003eMercury – Quicksilver Distributor Cap | Ignition System Component | Brass Terminals | 5075Q1\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"100\" data-end=\"103\"\u003e\n\u003ch3 data-start=\"105\" data-end=\"123\"\u003e\u003cstrong data-start=\"109\" data-end=\"121\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"124\" data-end=\"668\"\u003eA strong, even spark can make or break your day on the water. The \u003cstrong data-start=\"190\" data-end=\"243\"\u003eMercury Marine 5075Q1 Quicksilver Distributor Cap\u003c\/strong\u003e is built for \u003cstrong data-start=\"257\" data-end=\"297\"\u003emarinized Ford V8 MerCruiser engines\u003c\/strong\u003e that use \u003cstrong data-start=\"307\" data-end=\"348\"\u003eMallory conventional ignition systems\u003c\/strong\u003e, delivering consistent spark and dependable performance. It’s made from a tough blend of heat-resistant plastics and features solid brass terminals that hold up to salt, moisture, and vibration. Whether you’re idling through the marina or cruising wide open, this OEM cap keeps your ignition firing smooth and steady.\u003c\/p\u003e\n\u003chr data-start=\"670\" data-end=\"673\"\u003e\n\u003ch3 data-start=\"675\" data-end=\"697\"\u003e\u003cstrong data-start=\"679\" data-end=\"695\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"700\" data-end=\"790\"\u003e\n\u003cstrong data-start=\"700\" data-end=\"708\"\u003eJob:\u003c\/strong\u003e Distributes ignition voltage evenly to each cylinder for clean, reliable power.\u003c\/li\u003e\n\u003cli data-start=\"793\" data-end=\"891\"\u003e\n\u003cstrong data-start=\"793\" data-end=\"806\"\u003eMaterial:\u003c\/strong\u003e Molded from \u003cstrong data-start=\"819\" data-end=\"852\"\u003ehigh-strength PBT\/PET polymer\u003c\/strong\u003e that won’t warp or crack under heat.\u003c\/li\u003e\n\u003cli data-start=\"894\" data-end=\"985\"\u003e\n\u003cstrong data-start=\"894\" data-end=\"907\"\u003eContacts:\u003c\/strong\u003e \u003cstrong data-start=\"908\" data-end=\"933\"\u003eSolid brass terminals\u003c\/strong\u003e for corrosion resistance and strong conductivity.\u003c\/li\u003e\n\u003cli data-start=\"988\" data-end=\"1079\"\u003e\n\u003cstrong data-start=\"988\" data-end=\"1004\"\u003ePerformance:\u003c\/strong\u003e Helps your engine start faster, idle smoother, and run more efficiently.\u003c\/li\u003e\n\u003cli data-start=\"1082\" data-end=\"1176\"\u003e\n\u003cstrong data-start=\"1082\" data-end=\"1097\"\u003eProtection:\u003c\/strong\u003e Designed to \u003cstrong data-start=\"1110\" data-end=\"1137\"\u003ereduce RFI interference\u003c\/strong\u003e with radios and onboard electronics.\u003c\/li\u003e\n\u003cli data-start=\"1179\" data-end=\"1286\"\u003e\n\u003cstrong data-start=\"1179\" data-end=\"1187\"\u003eFit:\u003c\/strong\u003e Made for \u003cstrong data-start=\"1197\" data-end=\"1227\"\u003eFord V8 MerCruiser engines\u003c\/strong\u003e equipped with \u003cstrong data-start=\"1242\" data-end=\"1283\"\u003eMallory conventional ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1288\" data-end=\"1291\"\u003e\n\u003ch3 data-start=\"1293\" data-end=\"1330\"\u003e\u003cstrong data-start=\"1297\" data-end=\"1328\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1333\" data-end=\"1367\"\u003eFord-based V8 MerCruiser engines\u003c\/li\u003e\n\u003cli data-start=\"1370\" data-end=\"1409\"\u003eMallory conventional ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1412\" data-end=\"1496\"\u003eInboard and sterndrive setups used on cruisers, classic runabouts, and sport boats\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1498\" data-end=\"1501\"\u003e\n\u003ch3 data-start=\"1503\" data-end=\"1546\"\u003e\u003cstrong data-start=\"1507\" data-end=\"1544\"\u003ePerformance \u0026amp; Real-World Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1547\" data-end=\"1852\"\u003eThe \u003cstrong data-start=\"1551\" data-end=\"1577\"\u003e5075Q1 distributor cap\u003c\/strong\u003e is all about keeping your spark strong and consistent. The durable polymer housing shields your ignition from heat and moisture, while the brass terminals provide clean, even current to every plug. The result? Faster starts, smoother throttle response, and fewer misfires.\u003c\/p\u003e\n\u003cp data-start=\"1854\" data-end=\"2091\"\u003eIt’s a simple upgrade that restores your ignition system’s reliability — especially on older boats where time and corrosion have taken their toll. Once installed, you’ll notice cleaner running and stronger performance across the board.\u003c\/p\u003e\n\u003chr data-start=\"2093\" data-end=\"2096\"\u003e\n\u003ch3 data-start=\"2098\" data-end=\"2130\"\u003e\u003cstrong data-start=\"2102\" data-end=\"2128\"\u003eWhy Choose Mercury OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2131\" data-end=\"2387\"\u003eThe \u003cstrong data-start=\"2135\" data-end=\"2157\"\u003eQuicksilver 5075Q1\u003c\/strong\u003e is a \u003cstrong data-start=\"2163\" data-end=\"2187\"\u003egenuine Mercury part\u003c\/strong\u003e, made with the exact materials and tolerances your MerCruiser engine was built to use. Aftermarket caps often rely on cheaper plastic and aluminum contacts that corrode faster and weaken over time.\u003c\/p\u003e\n\u003cp data-start=\"2389\" data-end=\"2614\"\u003eMercury’s OEM caps are designed for real-world marine environments — constant heat, moisture, and vibration — and tested to handle them all. Using factory parts ensures your ignition works right every time you turn the key.\u003c\/p\u003e\n\u003chr data-start=\"2616\" data-end=\"2619\"\u003e\n\u003ch3 data-start=\"2621\" data-end=\"2634\"\u003e\u003cstrong data-start=\"2625\" data-end=\"2632\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2636\" data-end=\"2792\"\u003e\u003cstrong data-start=\"2636\" data-end=\"2682\"\u003eQ1: What engines use this distributor cap?\u003c\/strong\u003e\u003cbr data-start=\"2682\" data-end=\"2685\"\u003eIt’s made for \u003cstrong data-start=\"2699\" data-end=\"2739\"\u003emarinized Ford V8 MerCruiser engines\u003c\/strong\u003e running \u003cstrong data-start=\"2748\" data-end=\"2789\"\u003eMallory conventional ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"2794\" data-end=\"2921\"\u003e\u003cstrong data-start=\"2794\" data-end=\"2822\"\u003eQ2: What’s it made from?\u003c\/strong\u003e\u003cbr data-start=\"2822\" data-end=\"2825\"\u003eA tough \u003cstrong data-start=\"2833\" data-end=\"2858\"\u003ePBT\/PET plastic blend\u003c\/strong\u003e with \u003cstrong data-start=\"2864\" data-end=\"2889\"\u003esolid brass terminals\u003c\/strong\u003e for long-lasting performance.\u003c\/p\u003e\n\u003cp data-start=\"2923\" data-end=\"3045\"\u003e\u003cstrong data-start=\"2923\" data-end=\"2969\"\u003eQ3: What are the signs it needs replacing?\u003c\/strong\u003e\u003cbr data-start=\"2969\" data-end=\"2972\"\u003eHard starts, misfires, rough idle, or visible corrosion inside the cap.\u003c\/p\u003e\n\u003cp data-start=\"3047\" data-end=\"3194\"\u003e\u003cstrong data-start=\"3047\" data-end=\"3101\"\u003eQ4: Does it protect electronics from interference?\u003c\/strong\u003e\u003cbr data-start=\"3101\" data-end=\"3104\"\u003eYes — it’s designed to reduce radio frequency interference (RFI) for smoother operation.\u003c\/p\u003e\n\u003cp data-start=\"3196\" data-end=\"3361\"\u003e\u003cstrong data-start=\"3196\" data-end=\"3239\"\u003eQ5: Why buy OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-start=\"3239\" data-end=\"3242\"\u003eOEM caps are built with better materials and tighter tolerances, giving you dependable spark and longer service life.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940267348259,"sku":"391-5075Q1","price":54.64,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/5075q1_main.jpg?v=1760631172"},{"product_id":"mercury-mercruiser-distributor-cap-fits-gm-in-line-6-cylinder-engines-with-delco-conventional-ignition-33765t","title":"Mercury – Quicksilver Distributor Cap | Ignition System Component | Reinforced Polymer with Brass Terminals | 33765T","description":"\u003cp data-end=\"122\" data-start=\"0\"\u003e\u003cstrong data-end=\"120\" data-start=\"0\"\u003eMercury – Quicksilver Distributor Cap | Ignition System Component | Reinforced Polymer with Brass Terminals | 33765T\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"127\" data-start=\"124\"\u003e\n\u003ch3 data-end=\"147\" data-start=\"129\"\u003e\u003cstrong data-end=\"145\" data-start=\"133\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"723\" data-start=\"148\"\u003eA dependable spark makes all the difference on the water. The \u003cstrong data-end=\"263\" data-start=\"210\"\u003eMercury Marine 33765T Quicksilver Distributor Cap\u003c\/strong\u003e keeps your ignition system firing clean and even. Built for \u003cstrong data-end=\"377\" data-start=\"324\"\u003eMarinized GM 6-cylinder inline MerCruiser engines\u003c\/strong\u003e that use \u003cstrong data-end=\"418\" data-start=\"387\"\u003eDelco conventional ignition\u003c\/strong\u003e, this cap is tough enough for life in a hot, vibrating, salt-filled engine bay. It’s molded from durable reinforced polymer that won’t warp or crack, and its solid brass terminals stay clean and conductive. That means a consistent spark, smoother running, and easier starts every time you turn the key.\u003c\/p\u003e\n\u003chr data-end=\"728\" data-start=\"725\"\u003e\n\u003ch3 data-end=\"752\" data-start=\"730\"\u003e\u003cstrong data-end=\"750\" data-start=\"734\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"849\" data-start=\"755\"\u003e\n\u003cstrong data-end=\"767\" data-start=\"755\"\u003ePurpose:\u003c\/strong\u003e Routes voltage from the ignition coil to each cylinder in precise firing order.\u003c\/li\u003e\n\u003cli data-end=\"956\" data-start=\"852\"\u003e\n\u003cstrong data-end=\"865\" data-start=\"852\"\u003eMaterial:\u003c\/strong\u003e Made from a \u003cstrong data-end=\"908\" data-start=\"878\"\u003ereinforced PBT\/PET polymer\u003c\/strong\u003e that resists heat, vibration, and distortion.\u003c\/li\u003e\n\u003cli data-end=\"1058\" data-start=\"959\"\u003e\n\u003cstrong data-end=\"972\" data-start=\"959\"\u003eContacts:\u003c\/strong\u003e \u003cstrong data-end=\"996\" data-start=\"973\"\u003eSolid brass inserts\u003c\/strong\u003e provide long-lasting conductivity and corrosion resistance.\u003c\/li\u003e\n\u003cli data-end=\"1165\" data-start=\"1061\"\u003e\n\u003cstrong data-end=\"1077\" data-start=\"1061\"\u003ePerformance:\u003c\/strong\u003e Designed to limit \u003cstrong data-end=\"1116\" data-start=\"1096\"\u003eRFI interference\u003c\/strong\u003e that can affect radios or onboard electronics.\u003c\/li\u003e\n\u003cli data-end=\"1269\" data-start=\"1168\"\u003e\n\u003cstrong data-end=\"1183\" data-start=\"1168\"\u003eDurability:\u003c\/strong\u003e Rigid yet lightweight construction holds up under marine heat and engine vibration.\u003c\/li\u003e\n\u003cli data-end=\"1403\" data-start=\"1272\"\u003e\n\u003cstrong data-end=\"1290\" data-start=\"1272\"\u003eCompatibility:\u003c\/strong\u003e Fits \u003cstrong data-end=\"1345\" data-start=\"1296\"\u003eMerCruiser 6-cylinder inline GM-based engines\u003c\/strong\u003e with \u003cstrong data-end=\"1383\" data-start=\"1351\"\u003eDelco conventional (non-HEI)\u003c\/strong\u003e ignition systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1408\" data-start=\"1405\"\u003e\n\u003ch3 data-end=\"1447\" data-start=\"1410\"\u003e\u003cstrong data-end=\"1445\" data-start=\"1414\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-end=\"1534\" data-start=\"1450\"\u003e\n\u003cstrong data-end=\"1503\" data-start=\"1463\"\u003eI\u003c\/strong\u003e\u003cstrong data-end=\"1503\" data-start=\"1463\"\u003enline 6-cylinder MerCruiser engines\u003c\/strong\u003e built by \u003cstrong data-end=\"1531\" data-start=\"1513\"\u003eGeneral Motors\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-end=\"1595\" data-start=\"1537\"\u003e\n\u003cstrong data-end=\"1579\" data-start=\"1548\"\u003eDelco conventional ignition\u003c\/strong\u003e systems only.\u003c\/li\u003e\n\u003cli data-end=\"1690\" data-start=\"1598\"\u003eCommon on \u003cstrong data-end=\"1664\" data-start=\"1608\"\u003eclassic runabouts, older cruisers, and inboard boats\u003c\/strong\u003e using MerCruiser power.\u003c\/li\u003e\n\u003cli data-end=\"1761\" data-start=\"1693\"\u003ePerforms reliably in both \u003cstrong data-end=\"1747\" data-start=\"1719\"\u003efreshwater and saltwater\u003c\/strong\u003e conditions.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1766\" data-start=\"1763\"\u003e\n\u003ch3 data-end=\"1810\" data-start=\"1768\"\u003e\u003cstrong data-end=\"1808\" data-start=\"1772\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2196\" data-start=\"1811\"\u003eThe \u003cstrong data-end=\"1829\" data-start=\"1815\"\u003e33765T cap\u003c\/strong\u003e delivers steady, reliable spark distribution — no crossfire, no hesitation, no misfire. The heat-resistant polymer body holds its shape even after years of heat cycles, keeping the rotor and terminals properly aligned. Inside, brass contacts maintain clean electrical paths and resist corrosion, giving you a strong spark for better fuel burn and smoother running.\u003c\/p\u003e\n\u003cp data-end=\"2406\" data-start=\"2198\"\u003eYou’ll feel the difference right away: faster starts, steady idle, and responsive throttle. The design also minimizes radio interference, so your electronics stay clear and quiet while the motor hums along.\u003c\/p\u003e\n\u003chr data-end=\"2411\" data-start=\"2408\"\u003e\n\u003ch3 data-end=\"2437\" data-start=\"2413\"\u003e\u003cstrong data-end=\"2435\" data-start=\"2417\"\u003eWhy Choose OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"2789\" data-start=\"2438\"\u003eMarine engines live in a harsher world than automotive ones — salt, heat, and vibration test every component. The \u003cstrong data-end=\"2574\" data-start=\"2552\"\u003eQuicksilver 33765T\u003c\/strong\u003e is a \u003cstrong data-end=\"2608\" data-start=\"2580\"\u003egenuine Mercury OEM part\u003c\/strong\u003e, designed specifically for those conditions. It’s built to the same specs as the original distributor cap used in production, ensuring the perfect fit and dependable performance.\u003c\/p\u003e\n\u003cp data-end=\"3044\" data-start=\"2791\"\u003eGeneric parts often use cheap plastic that warps or aluminum contacts that corrode quickly. Mercury’s materials are marine-rated, tested, and proven to last. It’s the kind of detail that keeps your MerCruiser running strong for years, not just months.\u003c\/p\u003e\n\u003chr data-end=\"3049\" data-start=\"3046\"\u003e\n\u003ch3 data-end=\"3064\" data-start=\"3051\"\u003e\u003cstrong data-end=\"3062\" data-start=\"3055\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-end=\"3200\" data-start=\"3066\"\u003e\u003cstrong data-end=\"3100\" data-start=\"3066\"\u003eQ1: What engines use this cap?\u003c\/strong\u003e\u003cbr data-end=\"3103\" data-start=\"3100\"\u003eIt fits \u003cstrong data-end=\"3160\" data-start=\"3111\"\u003eMerCruiser 6-cylinder inline GM-based engines\u003c\/strong\u003e with \u003cstrong data-end=\"3197\" data-start=\"3166\"\u003eDelco conventional ignition\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-end=\"3328\" data-start=\"3202\"\u003e\u003cstrong data-end=\"3228\" data-start=\"3202\"\u003eQ2: What’s it made of?\u003c\/strong\u003e\u003cbr data-end=\"3231\" data-start=\"3228\"\u003eA \u003cstrong data-end=\"3258\" data-start=\"3233\"\u003ehigh-strength polymer\u003c\/strong\u003e body with \u003cstrong data-end=\"3294\" data-start=\"3269\"\u003esolid brass terminals\u003c\/strong\u003e that stay clean and conductive.\u003c\/p\u003e\n\u003cp data-end=\"3477\" data-start=\"3330\"\u003e\u003cstrong data-end=\"3372\" data-start=\"3330\"\u003eQ3: Does it help prevent interference?\u003c\/strong\u003e\u003cbr data-end=\"3375\" data-start=\"3372\"\u003eYes, it’s designed to reduce \u003cstrong data-end=\"3442\" data-start=\"3404\"\u003eradio frequency interference (RFI)\u003c\/strong\u003e for smooth electronic operation.\u003c\/p\u003e\n\u003cp data-end=\"3607\" data-start=\"3479\"\u003e\u003cstrong data-end=\"3520\" data-start=\"3479\"\u003eQ4: Can it handle heat and vibration?\u003c\/strong\u003e\u003cbr data-end=\"3523\" data-start=\"3520\"\u003eAbsolutely — it’s made for the marine environment and resists cracking or warping.\u003c\/p\u003e\n\u003cp data-end=\"3759\" data-start=\"3609\"\u003e\u003cstrong data-end=\"3660\" data-start=\"3609\"\u003eQ5: Why use Mercury OEM instead of aftermarket?\u003c\/strong\u003e\u003cbr data-end=\"3663\" data-start=\"3660\"\u003eOEM ensures a precise fit, marine-tested materials, and reliable performance you can count on.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940475228451,"sku":"33765T","price":29.02,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/33765t_main.jpg?v=1760631146"},{"product_id":"mercury-mercruiser-distributer-cap-gasket-fits-thunderbolt-iv-v-ignition-27-805760","title":"Mercury Mercruiser - Distributer Cap Gasket - Fits Thunderbolt IV \u0026 V Ignition - 27-805760","description":"\u003cp\u003eFor Thunderbolt IV \u0026amp; V ignition\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46940836233507,"sku":"27-805760","price":3.82,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/805760.jpg?v=1698814793"}],"url":"https:\/\/partsvu.com\/en-ca\/collections\/mercruiser-distributor-caps.oembed","provider":"PartsVu","version":"1.0","type":"link"}