{"product_id":"mercury-mercruiser-cap-and-rotor-kit-fits-gm-v-6-engines-with-delco-hei-ignition-850484t3","title":"Mercury – Distributor Cap and Rotor Kit | Marinized V6 Engines by GM | Delco HEI Ignition | 850484T3","description":"\u003ch3 data-start=\"0\" data-end=\"120\"\u003e\u003cstrong data-start=\"4\" data-end=\"120\"\u003eMercury – Distributor Cap and Rotor Kit | Marinized V6 Engines by GM | Delco HEI Ignition | 850484T3\u003c\/strong\u003e\u003c\/h3\u003e\n\u003chr data-start=\"122\" data-end=\"125\"\u003e\n\u003ch3 data-start=\"127\" data-end=\"143\"\u003e\u003cstrong data-start=\"131\" data-end=\"143\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"145\" data-end=\"491\"\u003eEvery boater knows that smooth starts and steady power depend on one thing — reliable ignition. The \u003cstrong data-start=\"245\" data-end=\"307\"\u003eMercury Quicksilver 850484T3 Distributor Cap and Rotor Kit\u003c\/strong\u003e is the quiet hero behind that confidence. It’s the part that keeps your MerCruiser V6 engine firing clean and consistent, trip after trip, no matter the weather or water conditions.\u003c\/p\u003e\n\u003cp data-start=\"493\" data-end=\"822\"\u003eIf you’ve ever heard that satisfying growl of a tuned MerCruiser engine, you know what this kit helps preserve — that seamless connection between key and throttle. Built for marinized General Motors V6 engines with Delco HEI ignition systems, it’s engineered for the kind of dependable spark you can count on season after season.\u003c\/p\u003e\n\u003chr data-start=\"824\" data-end=\"827\"\u003e\n\u003ch3 data-start=\"829\" data-end=\"849\"\u003e\u003cstrong data-start=\"833\" data-end=\"849\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"851\" data-end=\"1406\"\u003e\n\u003cli data-start=\"851\" data-end=\"955\"\u003e\n\u003cp data-start=\"853\" data-end=\"955\"\u003eComplete \u003cstrong data-start=\"862\" data-end=\"895\"\u003edistributor cap and rotor kit\u003c\/strong\u003e for V6 MerCruiser engines with Delco HEI ignition systems\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"956\" data-end=\"1066\"\u003e\n\u003cp data-start=\"958\" data-end=\"1066\"\u003eCap constructed from a durable blend of \u003cstrong data-start=\"998\" data-end=\"1022\"\u003ePBT and PET plastics\u003c\/strong\u003e for superior strength and heat resistance\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1067\" data-end=\"1159\"\u003e\n\u003cp data-start=\"1069\" data-end=\"1159\"\u003e\u003cstrong data-start=\"1069\" data-end=\"1092\"\u003eSolid brass inserts\u003c\/strong\u003e deliver clean electrical contact and resist corrosion or pitting\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1160\" data-end=\"1240\"\u003e\n\u003cp data-start=\"1162\" data-end=\"1240\"\u003eDesigned to minimize \u003cstrong data-start=\"1183\" data-end=\"1203\"\u003eRFI interference\u003c\/strong\u003e with sensitive onboard electronics\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1241\" data-end=\"1321\"\u003e\n\u003cp data-start=\"1243\" data-end=\"1321\"\u003eHigh \u003cstrong data-start=\"1248\" data-end=\"1276\"\u003estrength-to-weight ratio\u003c\/strong\u003e helps prevent thermal cracking and warpage\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1322\" data-end=\"1406\"\u003e\n\u003cp data-start=\"1324\" data-end=\"1406\"\u003eMeets \u003cstrong data-start=\"1330\" data-end=\"1362\"\u003eMercury Marine OEM standards\u003c\/strong\u003e for precision fit and lasting reliability\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1408\" data-end=\"1411\"\u003e\n\u003ch3 data-start=\"1413\" data-end=\"1448\"\u003e\u003cstrong data-start=\"1417\" data-end=\"1448\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1450\" data-end=\"1823\"\u003e\n\u003cli data-start=\"1450\" data-end=\"1521\"\u003e\n\u003cp data-start=\"1452\" data-end=\"1521\"\u003eFits \u003cstrong data-start=\"1457\" data-end=\"1492\"\u003emarinized V6 MerCruiser engines\u003c\/strong\u003e made by \u003cstrong data-start=\"1501\" data-end=\"1519\"\u003eGeneral Motors\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1522\" data-end=\"1591\"\u003e\n\u003cp data-start=\"1524\" data-end=\"1591\"\u003eDesigned for engines equipped with \u003cstrong data-start=\"1559\" data-end=\"1589\"\u003eDelco HEI ignition systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1592\" data-end=\"1672\"\u003e\n\u003cp data-start=\"1594\" data-end=\"1672\"\u003eCompatible with a wide range of \u003cstrong data-start=\"1626\" data-end=\"1663\"\u003eMerCruiser sterndrive and inboard\u003c\/strong\u003e models\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1673\" data-end=\"1752\"\u003e\n\u003cp data-start=\"1675\" data-end=\"1752\"\u003eIdeal for \u003cstrong data-start=\"1685\" data-end=\"1722\"\u003erunabouts, cruisers, cabin boats,\u003c\/strong\u003e and \u003cstrong data-start=\"1727\" data-end=\"1750\"\u003esport fishing boats\u003c\/strong\u003e\u003c\/p\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1753\" data-end=\"1823\"\u003e\n\u003cp data-start=\"1755\" data-end=\"1823\"\u003eSuitable for both \u003cstrong data-start=\"1773\" data-end=\"1801\"\u003esaltwater and freshwater\u003c\/strong\u003e marine environments\u003c\/p\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1825\" data-end=\"1828\"\u003e\n\u003ch3 data-start=\"1830\" data-end=\"1870\"\u003e\u003cstrong data-start=\"1834\" data-end=\"1870\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1872\" data-end=\"2204\"\u003eThe \u003cstrong data-start=\"1876\" data-end=\"1930\"\u003eQuicksilver 850484T3 Distributor Cap and Rotor Kit\u003c\/strong\u003e brings balance and consistency back to your ignition system. Every spark matters — and this OEM kit ensures each one fires exactly when it should. The result? A smoother idle, stronger acceleration, and that reassuring sense of control when you push the throttle forward.\u003c\/p\u003e\n\u003cp data-start=\"2206\" data-end=\"2630\"\u003eThe rotor and cap are designed to handle the harsh marine environment, where heat, humidity, and vibration test every component. With corrosion-resistant brass inserts and high-temperature plastics, this kit resists cracking, warping, and electrical pitting. You’ll notice how effortlessly your engine starts and how cleanly it holds power under load — that’s what happens when your ignition system is running at its best.\u003c\/p\u003e\n\u003cp data-start=\"2632\" data-end=\"2891\"\u003eInstallation is straightforward, and the fit is exact. You won’t have to fight with alignment or wonder if it’s seating correctly. Once it’s in, it stays snug and secure, performing quietly in the background so you can focus on what matters — the water ahead.\u003c\/p\u003e\n\u003chr data-start=\"2893\" data-end=\"2896\"\u003e\n\u003ch3 data-start=\"2898\" data-end=\"2917\"\u003e\u003cstrong data-start=\"2902\" data-end=\"2917\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2919\" data-end=\"3252\"\u003eBuying genuine \u003cstrong data-start=\"2934\" data-end=\"2958\"\u003eMercury Marine parts\u003c\/strong\u003e is about making smart, seasoned choices. When you go with OEM, you’re not just replacing a part — you’re preserving the performance and longevity of your entire engine. Aftermarket caps and rotors may look similar, but they rarely match the quality of Mercury’s materials, fit, or precision.\u003c\/p\u003e\n\u003cp data-start=\"3254\" data-end=\"3628\"\u003eThis \u003cstrong data-start=\"3259\" data-end=\"3283\"\u003epart number 850484T3\u003c\/strong\u003e kit is designed specifically for your engine’s ignition system. It eliminates the guesswork, ensures clean spark distribution, and helps protect your engine from misfires or uneven wear. For boaters who care about reliability and long-term performance, OEM isn’t a luxury — it’s a necessity. Once installed, you’ll know you made the right call.\u003c\/p\u003e\n\u003chr data-start=\"3630\" data-end=\"3633\"\u003e\n\u003ch3 data-start=\"3635\" data-end=\"3646\"\u003e\u003cstrong data-start=\"3639\" data-end=\"3646\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"3648\" data-end=\"3843\"\u003e\u003cstrong data-start=\"3648\" data-end=\"3732\"\u003eQ1: Which Mercury engines or systems does the Distributor Cap and Rotor Kit fit?\u003c\/strong\u003e\u003cbr data-start=\"3732\" data-end=\"3735\"\u003eIt fits \u003cstrong data-start=\"3743\" data-end=\"3778\"\u003emarinized V6 MerCruiser engines\u003c\/strong\u003e built by \u003cstrong data-start=\"3788\" data-end=\"3806\"\u003eGeneral Motors\u003c\/strong\u003e with \u003cstrong data-start=\"3812\" data-end=\"3842\"\u003eDelco HEI ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3845\" data-end=\"4063\"\u003e\u003cstrong data-start=\"3845\" data-end=\"3914\"\u003eQ2: What makes this part different from aftermarket alternatives?\u003c\/strong\u003e\u003cbr data-start=\"3914\" data-end=\"3917\"\u003eMercury’s OEM design uses heat-resistant plastics and brass inserts that outperform cheaper materials, ensuring longevity and consistent ignition.\u003c\/p\u003e\n\u003cp data-start=\"4065\" data-end=\"4271\"\u003e\u003cstrong data-start=\"4065\" data-end=\"4135\"\u003eQ3: How do I know if this is the correct replacement for my setup?\u003c\/strong\u003e\u003cbr data-start=\"4135\" data-end=\"4138\"\u003eCheck your service manual for \u003cstrong data-start=\"4168\" data-end=\"4192\"\u003epart number 850484T3\u003c\/strong\u003e. If you have a V6 MerCruiser with a Delco HEI ignition, this is the right fit.\u003c\/p\u003e\n\u003cp data-start=\"4273\" data-end=\"4441\"\u003e\u003cstrong data-start=\"4273\" data-end=\"4344\"\u003eQ4: Can this be used in both saltwater and freshwater applications?\u003c\/strong\u003e\u003cbr data-start=\"4344\" data-end=\"4347\"\u003eYes — it’s built with corrosion-resistant materials specifically tested for both environments.\u003c\/p\u003e\n\u003cp data-start=\"4443\" data-end=\"4614\"\u003e\u003cstrong data-start=\"4443\" data-end=\"4504\"\u003eQ5: Is installation straightforward for most boat owners?\u003c\/strong\u003e\u003cbr data-start=\"4504\" data-end=\"4507\"\u003eYes. It installs easily with standard tools, fitting precisely into place for quick, confident replacement.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46935894982947,"sku":"850484T3","price":50.68,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/850484t3_main.jpg?v=1760631240","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-mercruiser-cap-and-rotor-kit-fits-gm-v-6-engines-with-delco-hei-ignition-850484t3","provider":"PartsVu","version":"1.0","type":"link"}