{"product_id":"mercury-mercruiser-cap-and-rotor-kit-fits-gm-4-cylinder-engines-with-delco-est-ignition-811635q2","title":"Mercury – Quicksilver 811635Q2 Distributor Cap Kit | GM 4-Cylinder Engines | Delco EST Ignition | 811635Q2","description":"\u003cp data-start=\"0\" data-end=\"112\"\u003e\u003cstrong data-start=\"0\" data-end=\"110\"\u003eMercury – Quicksilver 811635Q2 Distributor Cap Kit | GM 4-Cylinder Engines | Delco EST Ignition | 811635Q2\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"114\" data-end=\"117\"\u003e\n\u003ch3 data-start=\"119\" data-end=\"137\"\u003e\u003cstrong data-start=\"123\" data-end=\"135\"\u003eOverview\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"138\" data-end=\"460\"\u003eEvery boater knows that a reliable start sets the tone for the whole day. The \u003cstrong data-start=\"216\" data-end=\"260\"\u003eQuicksilver 811635Q2 Distributor Cap Kit\u003c\/strong\u003e helps keep that confidence alive. Designed for \u003cstrong data-start=\"308\" data-end=\"375\"\u003emarinized 4-cylinder GM engines with Delco EST ignition systems\u003c\/strong\u003e, this OEM kit includes both the cap and rotor — the heart of your ignition system.\u003c\/p\u003e\n\u003cp data-start=\"462\" data-end=\"709\"\u003eIt’s built to handle the tough stuff: heat, vibration, and moisture. Whether you’re idling out of the slip or running wide open across the bay, this kit keeps your spark clean and steady, so your engine fires up quick and runs strong every time.\u003c\/p\u003e\n\u003chr data-start=\"711\" data-end=\"714\"\u003e\n\u003ch3 data-start=\"716\" data-end=\"738\"\u003e\u003cstrong data-start=\"720\" data-end=\"736\"\u003eKey Features\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"741\" data-end=\"851\"\u003e\n\u003cstrong data-start=\"741\" data-end=\"753\"\u003ePurpose:\u003c\/strong\u003e Restores clean, consistent spark delivery for smooth starts and efficient ignition performance.\u003c\/li\u003e\n\u003cli data-start=\"854\" data-end=\"992\"\u003e\n\u003cstrong data-start=\"854\" data-end=\"866\"\u003eFitment:\u003c\/strong\u003e For \u003cstrong data-start=\"871\" data-end=\"927\"\u003e4-cylinder MerCruiser engines made by General Motors\u003c\/strong\u003e with \u003cstrong data-start=\"933\" data-end=\"989\"\u003eDelco EST (Electronic Spark Timing) ignition systems\u003c\/strong\u003e.\u003c\/li\u003e\n\u003cli data-start=\"995\" data-end=\"1142\"\u003e\n\u003cstrong data-start=\"995\" data-end=\"1012\"\u003eConstruction:\u003c\/strong\u003e Distributor cap molded from a \u003cstrong data-start=\"1043\" data-end=\"1064\"\u003ePBT\/PET composite\u003c\/strong\u003e for strength, heat resistance, and shape retention under marine conditions.\u003c\/li\u003e\n\u003cli data-start=\"1145\" data-end=\"1288\"\u003e\n\u003cstrong data-start=\"1145\" data-end=\"1171\"\u003eElectrical Components:\u003c\/strong\u003e \u003cstrong data-start=\"1172\" data-end=\"1195\"\u003eSolid brass inserts\u003c\/strong\u003e prevent corrosion and pitting, ensuring reliable electrical contact and long service life.\u003c\/li\u003e\n\u003cli data-start=\"1291\" data-end=\"1429\"\u003e\n\u003cstrong data-start=\"1291\" data-end=\"1312\"\u003eDesign Advantage:\u003c\/strong\u003e Rotor has a \u003cstrong data-start=\"1325\" data-end=\"1358\"\u003ehigh strength-to-weight ratio\u003c\/strong\u003e, built to resist cracking and maintain balance under thermal stress.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1431\" data-end=\"1434\"\u003e\n\u003ch3 data-start=\"1436\" data-end=\"1473\"\u003e\u003cstrong data-start=\"1440\" data-end=\"1471\"\u003eEngine \u0026amp; Boat Compatibility\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli data-start=\"1476\" data-end=\"1527\"\u003eGM-based 4-cylinder MerCruiser sterndrive engines\u003c\/li\u003e\n\u003cli data-start=\"1530\" data-end=\"1558\"\u003eDelco EST ignition systems\u003c\/li\u003e\n\u003cli data-start=\"1561\" data-end=\"1629\"\u003eCommon on small runabouts, bowriders, and compact inboard cruisers\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1631\" data-end=\"1634\"\u003e\n\u003ch3 data-start=\"1636\" data-end=\"1678\"\u003e\u003cstrong data-start=\"1640\" data-end=\"1676\"\u003ePerformance \u0026amp; Practical Benefits\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"1679\" data-end=\"1982\"\u003eThe \u003cstrong data-start=\"1683\" data-end=\"1699\"\u003e811635Q2 kit\u003c\/strong\u003e gives your ignition system a fresh start. The brass terminals inside the cap maintain a strong, even electrical path, keeping the spark steady from idle to top end. The cap’s composite blend holds its shape when the engine bay heats up, preventing warping that can cause misfires.\u003c\/p\u003e\n\u003cp data-start=\"1984\" data-end=\"2340\"\u003eThe rotor is balanced and durable, keeping timing accurate under constant vibration. Together, they create a reliable spark path that helps your motor start quicker, idle smoother, and respond faster to throttle. If your current ignition setup shows wear, corrosion, or uneven performance, swapping in this OEM kit will make your engine feel sharp again.\u003c\/p\u003e\n\u003chr data-start=\"2342\" data-end=\"2345\"\u003e\n\u003ch3 data-start=\"2347\" data-end=\"2368\"\u003e\u003cstrong data-start=\"2351\" data-end=\"2366\"\u003eWhy Buy OEM\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2369\" data-end=\"2632\"\u003eIgnition components live in a tough environment — heat, salt air, and constant movement. Mercury’s OEM parts are designed specifically for marine engines, not adapted from automotive parts. The result is better insulation, cleaner conductivity, and longer life.\u003c\/p\u003e\n\u003cp data-start=\"2634\" data-end=\"2935\"\u003eAftermarket parts might look similar, but looser tolerances or cheaper plastics can cause misalignment or corrosion over time. When you choose OEM, you get precision-built components tested in real marine conditions, ensuring they’ll perform exactly as your engine’s ignition system was designed to.\u003c\/p\u003e\n\u003chr data-start=\"2937\" data-end=\"2940\"\u003e\n\u003ch3 data-start=\"2942\" data-end=\"2955\"\u003e\u003cstrong data-start=\"2946\" data-end=\"2953\"\u003eFAQ\u003c\/strong\u003e\u003c\/h3\u003e\n\u003cp data-start=\"2956\" data-end=\"3105\"\u003e\u003cstrong data-start=\"2956\" data-end=\"3006\"\u003eQ1: What engines fit the Quicksilver 811635Q2?\u003c\/strong\u003e\u003cbr data-start=\"3006\" data-end=\"3009\"\u003eA: It fits \u003cstrong data-start=\"3020\" data-end=\"3066\"\u003emarinized GM 4-cylinder MerCruiser engines\u003c\/strong\u003e with \u003cstrong data-start=\"3072\" data-end=\"3102\"\u003eDelco EST ignition systems\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3107\" data-end=\"3206\"\u003e\u003cstrong data-start=\"3107\" data-end=\"3142\"\u003eQ2: What’s included in the kit?\u003c\/strong\u003e\u003cbr data-start=\"3142\" data-end=\"3145\"\u003eA: The kit includes both the \u003cstrong data-start=\"3174\" data-end=\"3203\"\u003edistributor cap and rotor\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"3208\" data-end=\"3364\"\u003e\u003cstrong data-start=\"3208\" data-end=\"3247\"\u003eQ3: Is this safe for saltwater use?\u003c\/strong\u003e\u003cbr data-start=\"3247\" data-end=\"3250\"\u003eA: Yes. The materials and brass contacts are corrosion-resistant and built for long life in marine environments.\u003c\/p\u003e\n\u003cp data-start=\"3366\" data-end=\"3530\"\u003e\u003cstrong data-start=\"3366\" data-end=\"3409\"\u003eQ4: Will it interfere with electronics?\u003c\/strong\u003e\u003cbr data-start=\"3409\" data-end=\"3412\"\u003eA: No. The cap is designed to resist \u003cstrong data-start=\"3449\" data-end=\"3469\"\u003eRFI interference\u003c\/strong\u003e, keeping GPS, radios, and onboard systems running clearly.\u003c\/p\u003e\n\u003cp data-start=\"3532\" data-end=\"3705\"\u003e\u003cstrong data-start=\"3532\" data-end=\"3585\"\u003eQ5: How often should I replace the cap and rotor?\u003c\/strong\u003e\u003cbr data-start=\"3585\" data-end=\"3588\"\u003eA: Inspect them every 100 hours or once a season, and replace if you notice corrosion, pitting, or starting issues.\u003c\/p\u003e","brand":"Mercury","offers":[{"title":"Default Title","offer_id":46936176296227,"sku":"811635Q2","price":23.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0783\/7410\/9475\/files\/811635q2_main.jpg?v=1760631210","url":"https:\/\/partsvu.com\/en-mx\/products\/mercury-mercruiser-cap-and-rotor-kit-fits-gm-4-cylinder-engines-with-delco-est-ignition-811635q2","provider":"PartsVu","version":"1.0","type":"link"}