{"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","url":"https:\/\/partsvu.com\/en-au\/products\/mercury-mercruiser-distributor-cap-fits-gm-4-cylinder-engines-with-delco-est-ignition-811635t3","provider":"PartsVu","version":"1.0","type":"link"}