{"product_id":"distributor-assembly-gm-delco-est-ignition-for-mercruiser-3-0-817377-986653","title":"Distributor Assembly GM Delco EST Ignition for MerCruiser 3 0 817377 986653","description":"\u003cstrong\u003eThis Distributor Assembly is a GM Delco EST Ignition distributor compatible with MerCruiser 3.0 marine engines and matches OEM Part# 817377 and 986653.\u003c\/strong\u003e\u003ch2\u003eProduct Overview\u003c\/h2\u003e\u003cp\u003eThis Distributor Assembly delivers reliable ignition timing for MerCruiser 3.0 inboard and stern drive engines. Designed with GM Delco EST technology, it ensures consistent spark delivery and smooth engine operation. Boat owners and marine mechanics rely on this distributor for direct replacement of worn or failed units.\u003c\/p\u003e\u003ch3\u003eKey Features \u0026amp; Performance\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eDirect replacement for MerCruiser 3.0 applications using GM Delco EST ignition\u003c\/li\u003e\n\u003cli\u003eIncludes both OEM part numbers 817377 and 986653 for verified fitment\u003c\/li\u003e\n\u003cli\u003ePrecision-ground shaft and corrosion-resistant housing for marine environments\u003c\/li\u003e\n\u003cli\u003eIntegral EST module for reliable electronic spark advance\u003c\/li\u003e\n\u003cli\u003eFactory-tested assembly ensures plug-and-play installation\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFitment \u0026amp; Compatibility\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eMerCruiser 3.0L (181 cid) 4-cylinder marine engines\u003c\/li\u003e\n\u003cli\u003eReplaces OEM distributors with part numbers 817377 and 986653\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eCommon Uses\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003eReplacement of failed or worn distributors in MerCruiser 3.0 stern drive boats\u003c\/li\u003e\n\u003cli\u003eMaintenance and repair of inboard\/outboard marine power systems\u003c\/li\u003e\n\u003cli\u003eRestoration of ignition performance in older MerCruiser-powered vessels\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eTechnical Specifications\u003c\/h3\u003e\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePart Number(s):\u003c\/strong\u003e 817377, 986653\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eType:\u003c\/strong\u003e Distributor Assembly with Delco EST Ignition\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eApplication:\u003c\/strong\u003e MerCruiser 3.0L 4-Cylinder Marine\u003c\/li\u003e\n\u003c\/ul\u003e\u003ch3\u003eFrequently Asked Questions\u003c\/h3\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Will this distributor fit a 1995 MerCruiser 3.0?\u003cstrong\u003e A:\u003c\/strong\u003e Yes, it is compatible with most MerCruiser 3.0L engines that originally used GM Delco EST ignition and require part numbers 817377 or 986653. Verify your existing distributor number before purchase.\u003c\/p\u003e\u003cp\u003e\u003cstrong\u003eQ:\u003c\/strong\u003e Does this include the cap and rotor?\u003cstrong\u003e A:\u003c\/strong\u003e This is the complete distributor assembly with the EST module installed, but does not include a cap or rotor. Those components should be ordered separately if needed.\u003c\/p\u003e\u003cp\u003e\u003cem\u003eProduct appearance and specifications may vary slightly by batch. Compatibility may vary by serial number. Verify fitment before purchase.\u003c\/em\u003e\u003c\/p\u003e","brand":"Industrial Retailer","offers":[{"title":"Default Title","offer_id":45945741934694,"sku":"ZZ2Y02417","price":571.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0728\/6108\/9894\/files\/57_9dc6d008-7ed9-4340-80de-66e4fef17d89.jpg?v=1784170543","url":"https:\/\/industrialretailer.com\/products\/distributor-assembly-gm-delco-est-ignition-for-mercruiser-3-0-817377-986653","provider":"Industrial Retailer","version":"1.0","type":"link"}