{"title":"Alternators","description":"","products":[{"product_id":"65-amp-alternator-fits-mercruiser-v8-engines-1993-1997-replaces-805884t","title":"65-Amp Alternator – Fits Mercruiser V8 Engines 1993–1997 (Replaces 805884T)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e65-Amp Alternator – Fits Mercruiser V8 Engines 1993–1997 (Replaces 805884T)\u003c\/strong\u003e is engineered for Mercruiser V8 5.7L, 7.4L, and 8.2L (350, 454, 502 ci) engines used in sterndrive and ski applications from 1993–1997.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct interchange for several OEM and aftermarket part numbers, including Mercury\/Mercruiser 805884T, 805447T, API Marine 20054-HO, and Sierra 18-5965.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInstalls with a standard V-Belt (Single V-Groove Pulley).\u003c\/li\u003e\n  \u003cli\u003eMarine Certified and compliant with SAE J1171 standards for ignition protection.\u003c\/li\u003e\n  \u003cli\u003eFeatures a simple 2-wire pigtail connection for easy hookup.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e805884T\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e805447T\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e805884\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e805884P\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e807653\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e807653T\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAPI Marine\u003c\/td\u003e\n        \u003ctd\u003e20054-HO\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-5965\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWAI\u003c\/td\u003e\n        \u003ctd\u003e12176N-1G\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis alternator fits a wide range of V8 GM engines used in Mercruiser sterndrive and ski boat applications.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eBlack Scorpion Ski (Gen +)\u003c\/td\u003e\n\u003ctd\u003e5.7L\/350ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 Mag EFI Ski (Gen +)\u003c\/td\u003e\n\u003ctd\u003e5.7L\/350ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 Mag EFI Ski (TBI)\u003c\/td\u003e\n\u003ctd\u003e5.7L\/350ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1996\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 Mag MPI Ski\u003c\/td\u003e\n\u003ctd\u003e5.7L\/350ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–1996\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 Mag Bravo MPI\u003c\/td\u003e\n\u003ctd\u003e5.7L\/350ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 Mag Bravo MPI (Gen +)\u003c\/td\u003e\n\u003ctd\u003e5.7L\/350ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e454 EFI (Gen V)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1996\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e454 EFI Ski (Gen V)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e454 Mag MPI Ski (Gen VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e454 Mag Bravo MPI (Gen VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1999\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e454 Mag MPI (Gen VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e502 EFI (Gen V)\u003c\/td\u003e\n\u003ctd\u003e8.2L\/502ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1993–1995\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e502 Mag MPI (Gen VI)\u003c\/td\u003e\n\u003ctd\u003e8.2L\/502ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L EFI (TBI) Alpha\u003c\/td\u003e\n\u003ctd\u003e5.7L\/350ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L EFI (TBI) Bravo\u003c\/td\u003e\n\u003ctd\u003e5.7L\/350ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4LX Bravo MPI (Gen V)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4LX Bravo MPI (Gen VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4LX Bravo TBI (Gen VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4LX MPI (Gen V)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4LX MPI (Gen VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4LX TBI (Gen VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L\/454ci\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003ctd\u003eV8 GM Engine\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMarine Alternator\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eV-Belt (Single V-Groove Pulley)\u003c\/dd\u003e\n  \u003cdt\u003eAmperage\u003c\/dt\u003e\n\u003cdd\u003e65 Amps\u003c\/dd\u003e\n  \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12 Volts\u003c\/dd\u003e\n  \u003cdt\u003eRegulation\u003c\/dt\u003e\n\u003cdd\u003eInternal\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eAluminum\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003ePulley Type\u003c\/dt\u003e\n\u003cdd\u003eSingle V-Groove\u003c\/dd\u003e\n  \u003cdt\u003eConnections\u003c\/dt\u003e\n\u003cdd\u003e2-Wire Pigtail\u003c\/dd\u003e\n  \u003cdt\u003eShaft Size\u003c\/dt\u003e\n\u003cdd\u003e17mm with Two Flats\u003c\/dd\u003e\n  \u003cdt\u003eMounting\u003c\/dt\u003e\n\u003cdd\u003eSingle Foot\u003c\/dd\u003e\n  \u003cdt\u003eMarine Certified\u003c\/dt\u003e\n\u003cdd\u003eSAE J1171 Compliant\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eHeight: 20.5cm; Width: 19.0cm; Length: 19.0cm\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Alternator Assembly (805884T)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery terminals, starting with the negative cable.\u003c\/li\u003e\n  \u003cli\u003eLoosen the belt tensioner and carefully remove the alternator drive belt.\u003c\/li\u003e\n  \u003cli\u003eIdentify and disconnect the electrical connectors from the back of the old alternator.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting bolts securing the alternator to the engine bracket.\u003c\/li\u003e\n  \u003cli\u003eLift the old alternator out of the engine bay.\u003c\/li\u003e\n  \u003cli\u003ePosition the new alternator and loosely tighten the mounting bolts.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical pigtail and any other wires.\u003c\/li\u003e\n  \u003cli\u003eReinstall the drive belt and adjust it to the proper tension.\u003c\/li\u003e\n  \u003cli\u003eFully tighten all mounting bolts to the manufacturer's recommended torque specifications.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery, starting with the positive cable.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and use a voltmeter to confirm the charging output is within the correct range (typically 13.8–14.5 volts).\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if my alternator is failing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include dimming headlights, a battery warning light on your console, a frequently dead battery, or a whining\/grinding noise coming from the alternator itself while the engine is running.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a direct bolt-on replacement for my engine?\u003c\/summary\u003e\n  \u003cp\u003eYes, this unit is designed to match the single-foot mounting style, V-belt pulley, and electrical connections of the original alternator on the specified Mercruiser V8 engine models.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between an internally and externally regulated alternator?\u003c\/summary\u003e\n  \u003cp\u003eThis is an internally regulated alternator, which means the voltage regulator is built directly into the unit. This design simplifies wiring and is the standard for most modern marine applications, eliminating the need for a separate external regulator.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat maintenance does this alternator require?\u003c\/summary\u003e\n  \u003cp\u003eMarine alternators are generally maintenance-free. However, it is good practice to periodically inspect the drive belt for wear and proper tension and to ensure all electrical connections are clean, tight, and free of corrosion.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587180695867,"sku":"805884T","price":154.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/805884T_d0126ebe-3de0-4c17-84d2-f130d24b4eb2.jpg?v=1757934056"},{"product_id":"alternator-fits-mercury-outboards-v-6-dfi-optimax-replaces-8m0064020-881247a1-875286a1","title":"Alternator – Fits Mercury Outboards V-6 DFI\/Optimax (Replaces 8M0064020, 881247A1, 875286A1)","description":"\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis high-quality replacement \u003cstrong\u003eAlternator fits Mercury Outboards with V-6 DFI\/Optimax\u003c\/strong\u003e technology. It is specifically designed for use on 200-225 HP 3.0L models, providing reliable charging performance.\u003c\/p\u003e\n  \u003cp\u003eThis unit serves as a direct interchange for Mercury part numbers 8M0064020, 8M6013461, 881247A1, 875286A1, 828506, and 875286T.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eInstalls as a direct replacement for the original OEM part.\u003c\/li\u003e\n    \u003cli\u003eFeatures a connection compatible with the factory OEM wiring harness.\u003c\/li\u003e\n    \u003cli\u003eCovered by a 1-year warranty when purchased new.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n          \u003cth\u003eSuperseded By\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e8M0064020\u003c\/td\u003e\n          \u003ctd\u003e8M6013461\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e881247A1\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e875286A1\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e828506\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e875286T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003eFor Mercury engines, please ensure your model is a V-6 3.0L with DFI\/Optimax technology.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eOEM Part No.\u003c\/th\u003e\n          \u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003eOptimax\/DFI V-6 3.0L\u003c\/td\u003e\n          \u003ctd\u003e200-225\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e8M0064020\u003c\/td\u003e\n          \u003ctd\u003eSuperseded by 8M6013461\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n    \u003cdd\u003eAlternator\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n    \u003cdd\u003eDirect Replacement OEM\u003c\/dd\u003e\n    \u003cdt\u003eConnection\u003c\/dt\u003e\n    \u003cdd\u003eOEM Wiring Harness Compatible\u003c\/dd\u003e\n    \u003cdt\u003eHousing Color\u003c\/dt\u003e\n    \u003cdd\u003eBlack\u003c\/dd\u003e\n    \u003cdt\u003eProduct Dimensions (L x W x H)\u003c\/dt\u003e\n    \u003cdd\u003e19.0 x 19.0 x 20.5 cm\u003c\/dd\u003e\n    \u003cdt\u003eWarranty\u003c\/dt\u003e\n    \u003cdd\u003e1 Year (when purchased new)\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n    \u003cdd\u003e12V System, Delco\/Remy Design\u003c\/dd\u003e\n  \u003c\/dl\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Alternator (8M0064020\/8M6013461)\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the negative terminal from your boat's battery to prevent electrical shorts.\u003c\/li\u003e\n    \u003cli\u003eLoosen the belt tensioner and carefully remove the serpentine belt from the alternator pulley.\u003c\/li\u003e\n    \u003cli\u003eUnplug the main wiring harness and disconnect the battery cable from the back of the old alternator.\u003c\/li\u003e\n    \u003cli\u003eRemove the mounting bolts securing the alternator to the engine block.\u003c\/li\u003e\n    \u003cli\u003eCarefully lift the old alternator out of the engine bay.\u003c\/li\u003e\n    \u003cli\u003ePosition the new alternator and loosely tighten the mounting bolts.\u003c\/li\u003e\n    \u003cli\u003eReconnect the electrical connectors and battery cable.\u003c\/li\u003e\n    \u003cli\u003eReinstall the serpentine belt and apply the correct tension using the tensioner.\u003c\/li\u003e\n    \u003cli\u003eTighten all mounting bolts to the manufacturer's specified torque.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery terminal, start the engine, and verify the charging system is operating correctly.\u003c\/li\u003e\n  \u003c\/ol\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know if my alternator is failing?\u003c\/summary\u003e\n    \u003cp\u003eCommon signs of a faulty alternator include dimming or flickering lights, a battery warning light on your dashboard, a weak or dead battery, frequent battery jumps, or a whining\/grinding noise coming from the engine area.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWill this alternator fit my Optimax engine?\u003c\/summary\u003e\n    \u003cp\u003eThis unit is specifically designed as a replacement for alternators on Mercury V-6 DFI\/Optimax 3.0L (200-225 HP) engines. To guarantee fitment, always compare your original part number to the references listed in our Part Number Matrix.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDo I need to modify my boat's wiring?\u003c\/summary\u003e\n    \u003cp\u003eNo. This alternator is engineered to be compatible with the factory OEM wiring harness, allowing for a direct, plug-and-play installation without any modifications.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the output amperage of this alternator?\u003c\/summary\u003e\n    \u003cp\u003eWhile a specific amperage rating is not provided, this alternator is manufactured to meet or exceed the electrical demands and specifications of the original factory part for all listed compatible models.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n    \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587180761403,"sku":"8M0064020","price":580.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/8M0064020_109af8a6-d187-463a-bcd0-3b180148566a.jpg?v=1757934070"},{"product_id":"alternator-fits-mercury-mariner-outboard-225-300-hp-replaces-821663a1","title":"Alternator – Fits Mercury\/Mariner Outboard 225–300 HP (Replaces 821663A1)","description":"\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n    \u003ch2\u003eProduct Details\u003c\/h2\u003e\n    \u003cp\u003eThis is a direct replacement \u003cstrong\u003eAlternator for Mercury\/Mariner Outboard 225–300 HP\u003c\/strong\u003e engines, specifically designed for 3.0L 2-Stroke Carb \u0026amp; EFI models manufactured between 1994 and 2000. It provides a reliable power source for your marine electrical system, ensuring your battery stays charged and accessories run smoothly.\u003c\/p\u003e\n    \u003cp\u003eIt interchanges with multiple OEM and aftermarket part numbers, including Mercury 821663A1, Denso 101211-3020, and Sierra 18-6449.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003eEngineered for direct bolt-on installation.\u003c\/li\u003e\n        \u003cli\u003eProvides 12 Volts \/ 50 Amps of power.\u003c\/li\u003e\n        \u003cli\u003eFeatures an internal regulator and fan for a compact design.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n    \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n    \u003cdiv class=\"ss-table-wrap\"\u003e\n        \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n            \u003cthead\u003e\n                \u003ctr\u003e\n                    \u003cth\u003eBrand\u003c\/th\u003e\n                    \u003cth\u003ePart Number\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e821663-1\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e821663\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eDenso\u003c\/td\u003e\n\u003ctd\u003e101211-3020\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eDenso\u003c\/td\u003e\n\u003ctd\u003e101211-3021\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-6449\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eAPI Marine\u003c\/td\u003e\n\u003ctd\u003e20300\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eArrowhead\u003c\/td\u003e\n\u003ctd\u003eAND0171\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eJ\u0026amp;N\u003c\/td\u003e\n\u003ctd\u003e400-52198\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eWAI\u003c\/td\u003e\n\u003ctd\u003e12358N\u003c\/td\u003e\n\u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n    \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n    \u003cp\u003eThis alternator fits a range of Mercury and Mariner V6 3.0L outboards. Please verify your specific model and year for an exact match.\u003c\/p\u003e\n    \u003cdiv class=\"ss-table-wrap\"\u003e\n        \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n            \u003cthead\u003e\n                \u003ctr\u003e\n                    \u003cth\u003eBrand\u003c\/th\u003e\n                    \u003cth\u003eModel\u003c\/th\u003e\n                    \u003cth\u003eRated HP\u003c\/th\u003e\n                    \u003cth\u003eStroke\u003c\/th\u003e\n                    \u003cth\u003eYears\u003c\/th\u003e\n                    \u003cth\u003eOEM Part No.\u003c\/th\u003e\n                    \u003cth\u003eNotes\u003c\/th\u003e\n                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225 (Carb)\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225 (EFI)\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225 SEAPRO (Carb)\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225CXL\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1999\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225CXL EFI\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225CXL SEAPRO\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225CXXL\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1999\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225CXXL EFI\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225L\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1999\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225L EFI\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225XL\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1999\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225XL EFI\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225XXL\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–1999\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e225XXL EFI\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e250CXL EFI\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e250CXXL EFI\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e250XL EFI\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e250XXL EFI\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e300CL PROMAX RACING\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e300CXL PROMAX RACING\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e300L PROMAX RACING\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e300XL PROMAX RACING\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003e3.0L 185.0ci\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e225 (Carb)\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1994–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003eGM 3.0L 183ci 6cyl\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e225 (EFI)\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003eGM 3.0L 183ci 6cyl\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e225 SEA PRO (Carb)\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1998\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003eGM 3.0L 183ci 6cyl\u003c\/td\u003e\n\u003c\/tr\u003e\n                \u003ctr\u003e\n\u003ctd\u003eMariner\u003c\/td\u003e\n\u003ctd\u003e250 (EFI)\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e2-Stroke\u003c\/td\u003e\n\u003ctd\u003e1995–2000\u003c\/td\u003e\n\u003ctd\u003e821663A1\u003c\/td\u003e\n\u003ctd\u003eGM 3.0L 183ci 6cyl\u003c\/td\u003e\n\u003c\/tr\u003e\n            \u003c\/tbody\u003e\n        \u003c\/table\u003e\n    \u003c\/div\u003e\n\n    \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n    \u003cdl\u003e\n        \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAlternator\u003c\/dd\u003e\n        \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement\u003c\/dd\u003e\n        \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12 Volts\u003c\/dd\u003e\n        \u003cdt\u003eAmperage\u003c\/dt\u003e\n\u003cdd\u003e50 Amps\u003c\/dd\u003e\n        \u003cdt\u003ePolarity\u003c\/dt\u003e\n\u003cdd\u003eNegative ground (Earth return)\u003c\/dd\u003e\n        \u003cdt\u003ePulley Type\u003c\/dt\u003e\n\u003cdd\u003eSingle V-groove\u003c\/dd\u003e\n        \u003cdt\u003eFan Location\u003c\/dt\u003e\n\u003cdd\u003eInternal\u003c\/dd\u003e\n        \u003cdt\u003eRegulator Location\u003c\/dt\u003e\n\u003cdd\u003eInternal\u003c\/dd\u003e\n        \u003cdt\u003eRegulator Clock Position\u003c\/dt\u003e\n\u003cdd\u003e3:00\u003c\/dd\u003e\n        \u003cdt\u003eStud Size\u003c\/dt\u003e\n\u003cdd\u003eM6-1.0\u003c\/dd\u003e\n        \u003cdt\u003eMounting\u003c\/dt\u003e\n\u003cdd\u003eDirect bolt-on\u003c\/dd\u003e\n        \u003cdt\u003eHeight\u003c\/dt\u003e\n\u003cdd\u003e20.5\u003c\/dd\u003e\n        \u003cdt\u003eWidth\u003c\/dt\u003e\n\u003cdd\u003e19.0\u003c\/dd\u003e\n        \u003cdt\u003eLength\u003c\/dt\u003e\n\u003cdd\u003e18.0\u003c\/dd\u003e\n        \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e12 months (varies by vendor)\u003c\/dd\u003e\n    \u003c\/dl\u003e\n\n    \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e1 x Alternator (821663A1)\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n    \u003col\u003e\n        \u003cli\u003eDisconnect the battery terminals (negative first) to prevent electrical shorts.\u003c\/li\u003e\n        \u003cli\u003eLoosen the alternator belt tensioner and remove the serpentine belt from the alternator pulley.\u003c\/li\u003e\n        \u003cli\u003eDisconnect the wiring harness and main power lead from the back of the old alternator.\u003c\/li\u003e\n        \u003cli\u003eRemove the mounting bolts securing the old alternator and carefully lift it out of the engine bay.\u003c\/li\u003e\n        \u003cli\u003ePosition the new alternator and secure it with the original mounting bolts. Do not fully tighten yet.\u003c\/li\u003e\n        \u003cli\u003eReconnect the wiring harness and main power lead.\u003c\/li\u003e\n        \u003cli\u003eReinstall the serpentine belt and apply correct tension using the tensioner.\u003c\/li\u003e\n        \u003cli\u003eTighten all mounting bolts to the manufacturer's specified torque.\u003c\/li\u003e\n        \u003cli\u003eReconnect the battery terminals (positive first) and start the engine to verify proper operation.\u003c\/li\u003e\n    \u003c\/ol\u003e\n\n    \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow do I confirm this alternator fits my specific engine?\u003c\/summary\u003e\n        \u003cp\u003eThe most reliable method is to match the part number from your old alternator to the numbers in our Part Number Matrix. Additionally, check your engine's model, HP, and year against our compatibility table. If you are unsure, please contact us with your engine's serial number.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat are common signs of a failing alternator?\u003c\/summary\u003e\n        \u003cp\u003eSymptoms include dimming headlights or dash lights, a warning light on the dashboard (often shaped like a battery), a weak or dead battery, slow-cranking engine, or a whining\/grinding noise coming from the engine bay.\u003c\/p\u003e\n    \u003c\/details\u003e\n     \u003cdetails\u003e\n        \u003csummary\u003eCan I install this alternator myself?\u003c\/summary\u003e\n        \u003cp\u003eWhile installation is possible for those with mechanical experience, we recommend professional installation for safety and to ensure proper function. The process involves handling electrical connections and correctly tensioning the drive belt, which are critical for performance.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat's the difference between this and an OEM part?\u003c\/summary\u003e\n        \u003cp\u003eThis is an aftermarket part designed to meet or exceed OEM specifications for fit, form, and function. It offers a cost-effective solution without compromising on quality or performance. The primary difference is the manufacturer and price.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow often should a marine alternator be inspected or replaced?\u003c\/summary\u003e\n        \u003cp\u003eThere is no fixed replacement interval, but regular inspection is key. Check for belt tension, corrosion on connections, and listen for unusual noises at least once per season. Replace it when it no longer provides a consistent charge or shows signs of failure.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n        \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n        \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n        \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n    \u003c\/details\u003e\n\n    \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n        \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n        \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n    \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n    \u003c\/ul\u003e\n\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587180794171,"sku":"821663A1","price":139.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/821663A1_78f40af9-ea8f-4392-a002-9023ffe0ff6c.jpg?v=1757934071"},{"product_id":"mercury-marine-alternator-8m0064021-fits-mercury-mercruiser-2-5l-outboards-replaces-889955a03","title":"Mercury Marine Alternator 8M0064021 – Fits Mercury\/Mercruiser 2.5L Outboards (Replaces 889955A03)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eMercury Marine Alternator 8M0064021\u003c\/strong\u003e is a high-quality replacement for various Mercury outboard engines, particularly 2.5L models. It is engineered to serve as a reliable 12-volt, 50-amp alternator designed for marine environments.\u003c\/p\u003e\n\u003cp\u003eIt directly interchanges with several part numbers, including Mercury 889955A03, Delco 19020706, and Sierra 18-6454, among others. See the Part Number Matrix for a complete list of cross-references.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for direct-fit installation.\u003c\/li\u003e\n\u003cli\u003eFeatures an internal fan for cooling.\u003c\/li\u003e\n\u003cli\u003eIncludes a multi-groove serpentine pulley and wire\/plug connector.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket brands.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003cth\u003eSuperseded By\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e889955A03\u003c\/td\u003e\n        \u003ctd\u003e8M0064021\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e834832\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e881248T\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e875285T1\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e889955T01\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e8M6000804\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eDelco\u003c\/td\u003e\n        \u003ctd\u003e8600515\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eDelco\u003c\/td\u003e\n        \u003ctd\u003e19020703\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eDelco\u003c\/td\u003e\n        \u003ctd\u003e19020706\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-6454\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eProtorque\u003c\/td\u003e\n        \u003ctd\u003ePH300-0031\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model and year in the table below.\u003c\/p\u003e\n\u003cp\u003eFor Mercury\/Mercruiser owners, ensure your model matches the listed specifications. This part is a common replacement for 2.5L outboards that originally used part number 889955A03.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\u003c\/td\u003e\n        \u003ctd\u003e2.5L Outboard\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e889955A03\u003c\/td\u003e\n        \u003ctd\u003eSuperseded by 8M0064021\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAlternator\u003c\/dd\u003e\n  \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12 Volts\u003c\/dd\u003e\n  \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e50 Amps\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect replacement\u003c\/dd\u003e\n  \u003cdt\u003eMounting\u003c\/dt\u003e\n\u003cdd\u003e2-inch mounting foot\u003c\/dd\u003e\n  \u003cdt\u003eFeatures\u003c\/dt\u003e\n\u003cdd\u003eInternal fan, Multi-groove serpentine pulley, Wire\/plug connector included\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e20.5 x 19.0 x 18.0 cm\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e3.6 kg (7.94 lbs)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Alternator Assembly (8M0064021)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the vessel's battery terminals to prevent electrical shorts.\u003c\/li\u003e\n  \u003cli\u003eLoosen the serpentine belt tensioner and remove the belt from the alternator pulley.\u003c\/li\u003e\n  \u003cli\u003eUnplug the wire harness connector and detach the main power cable from the old alternator.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting bolts and carefully lift the old alternator out of the engine bay.\u003c\/li\u003e\n  \u003cli\u003ePosition the new alternator and loosely tighten the mounting bolts.\u003c\/li\u003e\n  \u003cli\u003eRe-install the serpentine belt, ensuring it is correctly routed and tensioned.\u003c\/li\u003e\n  \u003cli\u003eTighten all mounting bolts to the manufacturer's specified torque.\u003c\/li\u003e\n  \u003cli\u003eReconnect the power cable and wire harness plug.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery terminals.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and verify the charging system is operating correctly.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this alternator fits my Mercury engine?\u003c\/summary\u003e\n  \u003cp\u003eThe best method is to match your old part number to one listed in our Part Number Matrix. This alternator is a confirmed fit for Mercury 2.5L Outboards that used part 889955A03, but it also cross-references with many other numbers. Always visually compare the photos and specifications to your existing part.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing alternator?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include dimming lights, a warning light on the dash, a weak or dead battery, strange noises from the engine (whining or grinding), or the smell of burning rubber or wires. Use a multimeter to check the battery voltage with the engine running; it should be \u0026gt;13.5 volts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a direct bolt-on replacement?\u003c\/summary\u003e\n  \u003cp\u003eYes, this unit is designed to be a direct-fit replacement. It includes the correct 2-inch mounting foot, serpentine pulley, and wire\/plug connector for the applications listed, requiring no modification for installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDo I need to charge my battery after installing this new alternator?\u003c\/summary\u003e\n  \u003cp\u003eIf your battery was drained by the old alternator, it is highly recommended to fully charge it with a dedicated battery charger before starting the engine. A new alternator is designed to maintain a charged battery, not to recharge a deeply discharged one.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow can I tell if my old alternator has an internal or external fan?\u003c\/summary\u003e\n  \u003cp\u003eAn internal fan is not visible from the outside of the alternator casing. An external fan will have visible blades, typically at the front behind the pulley. This model features an internal fan.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat maintenance does this alternator require?\u003c\/summary\u003e\n  \u003cp\u003eMarine alternators are generally maintenance-free. The most important factor for longevity is ensuring the serpentine belt is in good condition and properly tensioned. A loose or worn belt can cause the alternator to perform poorly and fail prematurely.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, it is batch-inspected for consistency and reliability.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal use. If any issues arise, contact our support team with your order details. Returns are accepted within our standard window for items that are unused and in original condition. See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images and specifications against your original part before purchase. If anything differs—even if your model is listed as compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement component, not an OEM part.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587180826939,"sku":"8M0064021","price":765.88,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/8M0064021_8359a0d6-d6d7-4168-a395-9c283c775e88.jpg?v=1757934071"},{"product_id":"65-amp-alternator-delco-v-belt-fits-mercruiser-3-0l-sterndrive-inboard-engines-replaces-862030t01","title":"65 Amp Alternator, Delco, V-Belt – Fits MerCruiser 3.0L Sterndrive\/Inboard Engines (Replaces 862030T01)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis is a \u003cstrong\u003e65 Amp Alternator, Delco, V-Belt\u003c\/strong\u003e, designed as a high-quality replacement for MerCruiser 3.0L (181 cubic inch) 4-cylinder sterndrive and inboard engines within the serial number range 0M326296 through 2A506300. It ensures reliable charging performance for your marine engine's electrical system.\u003c\/p\u003e\n\u003cp\u003eThis unit is a direct replacement for Mercury\/Quicksilver part number 862030T01, offering an equivalent fit and function.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for direct OEM replacement installation.\u003c\/li\u003e\n\u003cli\u003eFeatures a 65 Amp output for V-Belt systems only.\u003c\/li\u003e\n\u003cli\u003eBuilt with Delco-style electrical connections.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Quicksilver\u003c\/td\u003e\n        \u003ctd\u003e862030T01\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis alternator is designed for the following Mercury MerCruiser models:\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e3.0L Alpha One\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e862030T01\u003c\/td\u003e\n        \u003ctd\u003e3.0L GM 181 I\/L4\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e3.0L TKS Alpha Plus Series\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e862030T01\u003c\/td\u003e\n        \u003ctd\u003e3.0L TKS Plus\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e3.0L MPI EC\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e862030T01\u003c\/td\u003e\n        \u003ctd\u003e-\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMarine Alternator\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement\u003c\/dd\u003e\n  \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e65 Amp\u003c\/dd\u003e\n  \u003cdt\u003eBelt Type\u003c\/dt\u003e\n\u003cdd\u003eV-Belt only\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eDelco-style electrical connections\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eVarious Materials\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e20.5 × 19.0 × 19.0 in\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e4.27 kg (9.4 lb)\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 year (OEM Mercury\/Quicksilver)\u003c\/dd\u003e\n  \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003e3.0L MerCruiser sterndrive\/inboard engines (s\/n 0M326296-2A506300)\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e 65 Amp Alternator (862030T01)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the negative terminal from the boat's battery to prevent electrical shorts.\u003c\/li\u003e\n  \u003cli\u003eLoosen the alternator tensioner bolt and remove the V-belt from the alternator pulley.\u003c\/li\u003e\n  \u003cli\u003eCarefully label and disconnect all electrical wires from the back of the old alternator.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting bolts securing the alternator to the engine bracket and lift it out.\u003c\/li\u003e\n  \u003cli\u003ePosition the new alternator and loosely install the mounting bolts.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical wires to the correct terminals on the new alternator.\u003c\/li\u003e\n  \u003cli\u003eReinstall the V-belt and properly tension it by adjusting the alternator's position. Tighten the tensioner and mounting bolts.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery's negative terminal. Start the engine and verify the charging output using a voltmeter.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this alternator fits my MerCruiser 3.0L engine?\u003c\/summary\u003e\n  \u003cp\u003eThis alternator is specifically for MerCruiser 3.0L engines with serial numbers from 0M326296 through 2A506300. Always verify your engine's serial number against this range before purchasing. It is not compatible with serpentine belt systems.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing marine alternator?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include dimming cabin or navigation lights, a voltmeter reading below 13 volts while the engine is running, a weak or dead battery, or a whining\/grinding noise coming from the alternator itself.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a direct bolt-on replacement?\u003c\/summary\u003e\n  \u003cp\u003eYes, this unit is designed to be a direct OEM replacement, matching the fit and connections of the original Mercury part 862030T01. No modification should be required for compatible engine models.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between this and the original Mercury part?\u003c\/summary\u003e\n  \u003cp\u003eThis is an aftermarket part designed to meet or exceed OEM specifications for fit, form, and function. It provides comparable performance and reliability to the original 862030T01 alternator at a better value.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should a marine alternator be inspected or replaced?\u003c\/summary\u003e\n  \u003cp\u003eInspect the alternator and belt for wear, tension, and corrosion at least annually or per your engine service manual. Alternators do not have a fixed replacement interval, but they typically last for several hundred service hours depending on use and conditions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I use this with a serpentine belt?\u003c\/summary\u003e\n  \u003cp\u003eNo. This alternator is specifically designed for a V-Belt pulley system. It is not compatible with engines that use a serpentine belt.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587180892475,"sku":"862030T01","price":268.51,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/862030T01_088029d5-4e42-4baa-ab5e-777e7682a653.jpg?v=1757934044"},{"product_id":"70-amp-alternator-fits-mercruiser-v6-v8-sterndrive-inboard-engines-replaces-862031t1","title":"70 Amp Alternator – Fits MerCruiser V6 \u0026 V8 Sterndrive\/Inboard Engines (Replaces 862031T1)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis is a direct-replacement \u003cstrong\u003e70 Amp Alternator – Fits MerCruiser V6 \u0026amp; V8 Sterndrive\/Inboard Engines (Replaces 862031T1)\u003c\/strong\u003e. It is specifically designed for General Motors-manufactured MerCruiser V6 and V8 sterndrive and inboard engines from approximately 1999 to 2001, serving as a reliable upgrade or replacement for the original Delco 7SI series unit.\u003c\/p\u003e\n  \u003cp\u003eIt directly interchanges with Mercury part numbers 862031, 862031T, and 862031T1, along with Delco 19020601 and 19020609, Prestolite 20115019TBA, Arco Marine 20800, and Sierra Marine 18-6293.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eEngineered for marine environments with SAE J1171 certification for ignition protection.\u003c\/li\u003e\n    \u003cli\u003eFeatures a standard 2.4-inch serpentine belt pulley for compatibility.\u003c\/li\u003e\n    \u003cli\u003eDesigned for easy installation using common tools.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e862031\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e862031T\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eDelco\u003c\/td\u003e\n          \u003ctd\u003e19020601\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eDelco\u003c\/td\u003e\n          \u003ctd\u003e19020609\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eDaewoo\u003c\/td\u003e\n          \u003ctd\u003e219232\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003ePrestolite\u003c\/td\u003e\n          \u003ctd\u003e20115019TBA\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eArco Marine\u003c\/td\u003e\n          \u003ctd\u003e20800\u003c\/td\u003e\n        \u003c\/tr\u003e\n                \u003ctr\u003e\n          \u003ctd\u003eArco Marine\u003c\/td\u003e\n          \u003ctd\u003e20815\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra Marine\u003c\/td\u003e\n          \u003ctd\u003e18-6293\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003eThis alternator fits a wide range of MerCruiser sterndrive, inboard, and ski applications using GM V6 and V8 blocks.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel\u003c\/th\u003e\n          \u003cth\u003eEngine\u003c\/th\u003e\n          \u003cth\u003eYears\u003c\/th\u003e\n          \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e350 MAG MPI ALPHA \u0026amp; BRAVO\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–2000\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e350 MAG MPI HORIZON ALPHA \u0026amp; BRAVO\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e4.3L (GEN+)\u003c\/td\u003e\n          \u003ctd\u003eGM 4.3L (262ci) V6\u003c\/td\u003e\n          \u003ctd\u003e2001–On\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e4.3L EFI\u003c\/td\u003e\n          \u003ctd\u003eGM 4.3L (262ci) V6\u003c\/td\u003e\n          \u003ctd\u003e1999\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e4.3L EFI (GEN+) TBI\u003c\/td\u003e\n          \u003ctd\u003eGM 4.3L (262ci) V6\u003c\/td\u003e\n          \u003ctd\u003e1998–2000\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e4.3L MPI ALPHA\/BRAVO\u003c\/td\u003e\n          \u003ctd\u003eGM 4.3L (262ci) V6\u003c\/td\u003e\n          \u003ctd\u003e2001–2002\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e4.3LH (GEN+) (4-BBL)\u003c\/td\u003e\n          \u003ctd\u003eGM 4.3L (262ci) V6\u003c\/td\u003e\n          \u003ctd\u003e1998–On\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e454 MAG BRAVO MPI (GEN VI)\u003c\/td\u003e\n          \u003ctd\u003eGM 7.4L (454ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–On\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e454 MAG MPI (GEN VI)\u003c\/td\u003e\n          \u003ctd\u003eGM 7.4L (454ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–2000\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.0L (2 BBL.)\u003c\/td\u003e\n          \u003ctd\u003eGM 5.0L (305ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–2002\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.0L EFI (GEN+)\u003c\/td\u003e\n          \u003ctd\u003eGM 5.0L (305ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.0L MPI ALPHA\/BRAVO\u003c\/td\u003e\n          \u003ctd\u003eGM 5.0L (305ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.7L (2 BBL.)\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–2002\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.7L EFI (GEN+)\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e502 MAG MPI (GEN VI)\u003c\/td\u003e\n          \u003ctd\u003eGM 8.2L (502ci) V8\u003c\/td\u003e\n          \u003ctd\u003e2000–On\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e7.4LX MPI (GEN VI) (L29)\u003c\/td\u003e\n          \u003ctd\u003eGM 7.4L (454ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–2000\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eMX 6.2L MPI\u003c\/td\u003e\n          \u003ctd\u003eGM 6.2L (377ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–On\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eMX 6.2L MPI HORIZON\u003c\/td\u003e\n          \u003ctd\u003eGM 6.2L (377ci) V8\u003c\/td\u003e\n          \u003ctd\u003e2000–2002\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eMX 6.2L MPI HORIZON BRAVO\u003c\/td\u003e\n          \u003ctd\u003eGM 6.2L (377ci) V8\u003c\/td\u003e\n          \u003ctd\u003e2000–2002\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e350 MAG MPI HORIZON MIE\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e350 MAG MPI MIE\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.7L EFI (GEN+) MIE\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.7L MIE\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1999–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e7.4L MIE MPI (L29) (GEN VI)\u003c\/td\u003e\n          \u003ctd\u003eGM 7.4L (454ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–2000\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e8.2L MIE MPI (LH) (GEN VI)\u003c\/td\u003e\n          \u003ctd\u003eGM 8.2L (502ci) V8\u003c\/td\u003e\n          \u003ctd\u003e2001–On\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eMX 6.2L MPI HORIZON MIE\u003c\/td\u003e\n          \u003ctd\u003eGM 6.2L (377ci) V8\u003c\/td\u003e\n          \u003ctd\u003e2000–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eMX 6.2L MPI MIE\u003c\/td\u003e\n          \u003ctd\u003eGM 6.2L (377ci) V8\u003c\/td\u003e\n          \u003ctd\u003e2000–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e350 MAG MPI SKI (GEN+)\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.7L COMPETITION SKI (GEN+)\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003e5.7L SKI (GEN+)\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1998–On\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eBLACK SCORPION 350 MAG SKI (GEN+)\u003c\/td\u003e\n          \u003ctd\u003eGM 5.7L (350ci) V8\u003c\/td\u003e\n          \u003ctd\u003e1997–2001\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMerCruiser\u003c\/td\u003e\n          \u003ctd\u003eBLACK SCORPION MX 6.2L SKI (GEN+)\u003c\/td\u003e\n          \u003ctd\u003eGM 6.2L (377ci) V8\u003c\/td\u003e\n          \u003ctd\u003e2001–2002\u003c\/td\u003e\n          \u003ctd\u003e862031T1\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAlternator (Delco 7SI Series)\u003c\/dd\u003e\n    \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e70 Amps\u003c\/dd\u003e\n    \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12 Volts\u003c\/dd\u003e\n    \u003cdt\u003ePulley Type\u003c\/dt\u003e\n\u003cdd\u003eSerpentine belt, 2.4\" (62mm) diameter\u003c\/dd\u003e\n    \u003cdt\u003eRegulator Position\u003c\/dt\u003e\n\u003cdd\u003e12:00\u003c\/dd\u003e\n    \u003cdt\u003ePolarity\u003c\/dt\u003e\n\u003cdd\u003eNegative\u003c\/dd\u003e\n    \u003cdt\u003eOutput Stud\u003c\/dt\u003e\n\u003cdd\u003eM6-1.0\u003c\/dd\u003e\n    \u003cdt\u003eMounting\u003c\/dt\u003e\n\u003cdd\u003eM8-1.25 Top Mounting Ear, 8mm Mounting Feet\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e20.5 × 19.0 × 19.0 cm (8.1 × 7.5 × 7.5 in)\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e4.23 kg (9.3 lbs)\u003c\/dd\u003e\n    \u003cdt\u003eCertification\u003c\/dt\u003e\n\u003cdd\u003eSAE J1171 Marine Certified\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Alternator Assembly (862031T1)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery cables (negative first, then positive) to prevent electrical shorts.\u003c\/li\u003e\n    \u003cli\u003eLoosen the serpentine belt tensioner and remove the belt from the alternator pulley.\u003c\/li\u003e\n    \u003cli\u003eCarefully unplug the main wiring harness and disconnect the battery charge wire from the output stud.\u003c\/li\u003e\n    \u003cli\u003eRemove the alternator's mounting bolts and lift the old unit out of the engine bay.\u003c\/li\u003e\n    \u003cli\u003eCompare the new alternator with the old one to ensure the pulley and mounting points align.\u003c\/li\u003e\n    \u003cli\u003ePosition the new alternator and loosely thread the mounting bolts.\u003c\/li\u003e\n    \u003cli\u003eReconnect the wiring harness and charge wire securely.\u003c\/li\u003e\n    \u003cli\u003eReinstall the serpentine belt, ensuring it is correctly routed on all pulleys. Apply proper tension.\u003c\/li\u003e\n    \u003cli\u003eTighten all mounting bolts to the manufacturer's specified torque.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery cables (positive first, then negative).\u003c\/li\u003e\n    \u003cli\u003eStart the engine and verify the charging system voltage is within the correct range (typically 13.8V-14.7V).\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm this alternator fits my specific engine?\u003c\/summary\u003e\n    \u003cp\u003eThe surest way is to match your original part number to one listed in our Part Number Matrix. If you cannot find your part number, please check the Engine \u0026amp; Model Compatibility table. It is critical to confirm the listed engine model, and year range match your setup.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the common signs of a failing alternator?\u003c\/summary\u003e\n    \u003cp\u003eSymptoms include flickering lights, a \"Check Battery\" or \"ALT\" warning light on your dash, a weak or dead battery, strange noises from the engine bay (whining or grinding), or a burning rubber smell from the belt slipping on a seized pulley.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a direct, bolt-on replacement?\u003c\/summary\u003e\n    \u003cp\u003eYes, this unit is designed to be a direct-fit replacement for the OEM part numbers listed. It uses the same mounting points, pulley type, and electrical connections, requiring no modification for installation on compatible engines.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the actual amperage output?\u003c\/summary\u003e\n    \u003cp\u003eThis is a 70 Amp alternator. While some sources may list minor variations, it is rated to perform at 70 Amps, which is the standard for most of the listed MerCruiser applications.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhy does my battery keep dying even with a new alternator?\u003c\/summary\u003e\n    \u003cp\u003eFirst, ensure all connections are clean, tight, and free of corrosion. A loose or faulty ground can prevent proper charging. Also, have your battery tested; it may be old and unable to hold a charge. Lastly, check for parasitic drains—electrical components that draw power when the engine is off.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat does SAE J1171 certification mean?\u003c\/summary\u003e\n    \u003cp\u003eSAE J1171 is a marine safety standard that certifies the component is \"ignition protected.\" This means it is designed to prevent open sparks, making it safe for use in gasoline engine compartments where flammable fuel vapors can be present.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n    \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587180925243,"sku":"862031T1","price":331.24,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/862031T1_4cc75163-be98-449c-86b4-452d5069aed6.jpg?v=1757934045"},{"product_id":"65-amp-alternator-fits-mercury-mercruiser-4-3l-to-8-2l-replaces-807653t","title":"65-Amp Alternator – Fits Mercury\/Mercruiser 4.3L to 8.2L (Replaces 807653T)","description":"\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis high-output \u003cstrong\u003e65-Amp Alternator\u003c\/strong\u003e is an aftermarket replacement for Mercury\/Mercruiser 4.3L, 5.0L, 5.7L, 6.2L, 7.4L, and 8.2L V6 and V8 gasoline engines (1996–2001) that use a serpentine belt. It ensures your vessel's battery stays charged and electrical systems run reliably.\u003c\/p\u003e\n  \u003cp\u003eIt serves as a direct cross-reference for multiple manufacturer parts, including Mercury 807653T and 805884T, Sierra 18-5960, Arco 60060, and Mando AC165610.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eDirect OEM-style fit for straightforward installation.\u003c\/li\u003e\n    \u003cli\u003eIgnition protected per SAE J1171 for safe operation in marine environments.\u003c\/li\u003e\n    \u003cli\u003eFeatures a 3-wire hook-up with an integrated tachometer lead.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Interchange\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e805884T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-5960\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eArco\u003c\/td\u003e\n\u003ctd\u003e60060\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMando\u003c\/td\u003e\n\u003ctd\u003eAC165610\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMando\u003c\/td\u003e\n\u003ctd\u003eAC165616\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMando\u003c\/td\u003e\n\u003ctd\u003eAC165617\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model and year in the tables below. This component is designed for models using a serpentine belt.\u003c\/p\u003e\n  \n  \u003cp\u003e\u003cb\u003eMercury\/Mercruiser Models:\u003c\/b\u003e Designed for a range of Mercruiser stern drive, inboard, and ski engines manufactured between 1996 and 2001.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury\/Mercruiser Stern Drive Models\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e262 MAG (TBI)(GEN+)\u003c\/td\u003e\n\u003ctd\u003e4.3L V6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 MAG ALPHA EFI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 MAG BRAVO MPI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 MAG MPI ALPHA \u0026amp; BRAVO\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e4.3L EFI (GEN+) TBI\u003c\/td\u003e\n\u003ctd\u003e4.3L V6\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e454 MAG MPI (GEN VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.0L EFI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.0L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2001\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L EFI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2001\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L EFI (TBI)(2-BBL)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.7LX BRAVO EFI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.7LX EFI (TBI)(2-BBL)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.7LX EFI (TBI)(4-BBL)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e502 MAG MPI (GEN VI)\u003c\/td\u003e\n\u003ctd\u003e8.2L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–1999\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e502 MAG MPI BRAVO (GEN VI)\u003c\/td\u003e\n\u003ctd\u003e8.2L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–1999\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4L MPI (GEN VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4LX MPI (GEN VI)(L29)\u003c\/td\u003e\n\u003ctd\u003e7.4L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury\/Mercruiser Inboard Engines\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 MAG MPI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 MAG MPI HORIZON\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–1999\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 MAG MPI MIE\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–1999\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e454 MAG MPI HORIZON (GEN VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–1999\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e5.7L EFI (GEN+) MIE\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e7.4L MIE MPI (L29)(GEN VI)\u003c\/td\u003e\n\u003ctd\u003e7.4L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2000\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e8.2L MIE MPI (LH)(GEN VI)\u003c\/td\u003e\n\u003ctd\u003e8.2L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–1999\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Mercury\/Mercruiser Ski Engines\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eBLACK SCORPION SKI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997–2001\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 MAG EFI SKI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e350 MAG MPI SKI (GEN+)\u003c\/td\u003e\n\u003ctd\u003e5.7L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1998–2001\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003e377 SCORPION (GEN+)(SKI)\u003c\/td\u003e\n\u003ctd\u003e6.2L V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1997–2001\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003cp\u003e\u003cb\u003eCummins Mercruiser Models:\u003c\/b\u003e Fits specific Cummins Mercruiser diesel engines from 2004–2005.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Cummins Mercruiser Models\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eEI 165 (Inboard)\u003c\/td\u003e\n\u003ctd\u003e2.8L 4 Cyl\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004–2005\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eEI 250 (Inboard)\u003c\/td\u003e\n\u003ctd\u003e4.2L 6 Cyl\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004–2005\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eEI 300 (Inboard)\u003c\/td\u003e\n\u003ctd\u003e4.2L 6 Cyl\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004–2005\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eES 165 (Sterndrive)\u003c\/td\u003e\n\u003ctd\u003e2.8L 4 Cyl\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004–2005\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eES 250 (Sterndrive)\u003c\/td\u003e\n\u003ctd\u003e4.2L 6 Cyl\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004–2005\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eCummins\u003c\/td\u003e\n\u003ctd\u003eES 300 (Sterndrive)\u003c\/td\u003e\n\u003ctd\u003e4.2L 6 Cyl\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2004–2005\u003c\/td\u003e\n\u003ctd\u003e807653T\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \n  \u003cp\u003e\u003cb\u003eVolvo Penta Models:\u003c\/b\u003e Compatible with select V6\/V8 models from 1996–2001 using a 6-groove serpentine belt. Please verify the OEM part number (3857813) for your specific application, as compatibility details can vary.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Volvo Penta Models\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eModel\u003c\/th\u003e\n\u003cth\u003eRated HP\u003c\/th\u003e\n\u003cth\u003eStroke\u003c\/th\u003e\n\u003cth\u003eYears\u003c\/th\u003e\n\u003cth\u003eOEM Part No.\u003c\/th\u003e\n\u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eVolvo Penta\u003c\/td\u003e\n\u003ctd\u003eVarious Models\u003c\/td\u003e\n\u003ctd\u003eV6\/V8\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e1996–2001\u003c\/td\u003e\n\u003ctd\u003e3857813\u003c\/td\u003e\n\u003ctd\u003eWith 6-groove serpentine belt\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAlternator\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM Replacement\u003c\/dd\u003e\n    \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e65 Amp\u003c\/dd\u003e\n    \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12V\u003c\/dd\u003e\n    \u003cdt\u003ePolarity\u003c\/dt\u003e\n\u003cdd\u003eNegative\u003c\/dd\u003e\n    \u003cdt\u003ePulley Type\u003c\/dt\u003e\n\u003cdd\u003eSerpentine Belt (6-Groove)\u003c\/dd\u003e\n    \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003e3-Wire Hook-Up with Tachometer Lead\u003c\/dd\u003e\n    \u003cdt\u003eWire Colors\u003c\/dt\u003e\n\u003cdd\u003eRed (Sensor), Purple (Excitation)\u003c\/dd\u003e\n    \u003cdt\u003eMounting\u003c\/dt\u003e\n\u003cdd\u003eEar 1: 5\/16-18 Threaded, Ear 2: 2\" (50.8mm)\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e21.0cm L x 19.0cm W x 21.0cm H\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e5.34 kg (11.75 lbs)\u003c\/dd\u003e\n    \u003cdt\u003eIgnition Protected\u003c\/dt\u003e\n\u003cdd\u003eYes (SAE J1171)\u003c\/dd\u003e\n    \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 Year\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x 65-Amp Alternator Assembly\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the negative terminal from your boat's battery for safety.\u003c\/li\u003e\n    \u003cli\u003eLoosen the serpentine belt tensioner and carefully remove the belt from the alternator pulley.\u003c\/li\u003e\n    \u003cli\u003eIdentify and disconnect the electrical connections on the back of the old alternator, noting their positions.\u003c\/li\u003e\n    \u003cli\u003eRemove the mounting bolts and lift the old alternator out of the engine bay.\u003c\/li\u003e\n    \u003cli\u003ePosition the new alternator and secure it with the mounting bolts, ensuring it is properly aligned.\u003c\/li\u003e\n    \u003cli\u003eReconnect the electrical wires to their corresponding terminals on the new unit.\u003c\/li\u003e\n    \u003cli\u003eReinstall the serpentine belt and adjust to the proper tension using the tensioner.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery's negative terminal.\u003c\/li\u003e\n    \u003cli\u003eStart the engine and use a voltmeter to confirm that the charging system is operating correctly (typically between 13.8V–14.5V).\u003c\/li\u003e\n  \u003c\/ol\u003e\n\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I know if this alternator will fit my specific engine model?\u003c\/summary\u003e\n    \u003cp\u003eThis alternator fits a wide range of Mercury\/Mercruiser V6 and V8 engines from 1996–2001 using a serpentine belt. The best way to ensure compatibility is to check your engine model and year against the detailed lists in our \"Engine \u0026amp; Model Compatibility\" section. Cross-referencing your old part number with our \"Part Number Matrix\" is also highly recommended.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the typical signs that my alternator is failing?\u003c\/summary\u003e\n    \u003cp\u003eCommon symptoms include a battery that won’t stay charged, dimming headlights or onboard lights, a whining or grinding noise from the alternator, and a \"BAT\" or \"ALT\" warning light on your dashboard. If you experience these issues, it's a good idea to have your charging system tested.\u003c\/p\u003e\n  \u003c\/details\u003e\n    \u003cdetails\u003e\n    \u003csummary\u003eIs this a 2-wire or 3-wire alternator?\u003c\/summary\u003e\n    \u003cp\u003eThis is a 3-wire alternator. It includes a sensor wire (Red), an excitation wire (Purple), and a connection for your boat's tachometer.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eDoes this alternator have an internal or external regulator?\u003c\/summary\u003e\n    \u003cp\u003eThis alternator features a modern internal voltage regulator, so no external regulator is required for installation.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this alternator safe for use in a gasoline marine engine bay?\u003c\/summary\u003e\n    \u003cp\u003eYes, absolutely. It is ignition protected and meets SAE J1171 marine standards to prevent sparks from igniting fuel vapors, making it safe for use in gasoline marine environments.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n    \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cb\u003ePro-Grade Standards\u003c\/b\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eFast Global Fulfillment\u003c\/b\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cb\u003eManufacturer-Direct Value\u003c\/b\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587180958011,"sku":"807653T","price":339.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/807653T_d936a19b-a4b9-4917-9c7a-723639be251c.jpg?v=1757934061"},{"product_id":"mercruiser-alternator-61-amp-fits-mercruiser-il4-v6-v8-replaces-78403a2","title":"Mercruiser Alternator 61 Amp – Fits Mercruiser IL4, V6, V8 (Replaces 78403A2)","description":"\u003cstyle\u003e\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n  table.ss-table th {\n    white-space:nowrap;\n    word-break:normal;\n    letter-spacing:normal;\n    font-weight:600;\n    background:#f8fafc;\n  }\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis is a direct-replacement \u003cstrong\u003eMercruiser Alternator 61 Amp\u003c\/strong\u003e designed for a wide range of Mercruiser IL4, V6, and V8 gasoline stern drive engines from the 1970s and 1980s. It serves as a reliable aftermarket alternative to the original Delco-style 10SI unit, ensuring proper charging system function.\u003c\/p\u003e\n\u003cp\u003eIt provides a direct interchange for several part numbers, including MES Marine 78403A2, Mercury\/Mercruiser 78403A2 and 78477, Sierra 18-5951 and 18-5957, Arco 20104, and API Marine 20053.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDesigned for direct OEM replacement installation.\u003c\/li\u003e\n  \u003cli\u003eFeatures an internal voltage regulator.\u003c\/li\u003e\n  \u003cli\u003eIgnition Protected per SAE J1171 standards for marine use.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMES Marine\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e78477\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-5951\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-5957\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eArco\u003c\/td\u003e\n        \u003ctd\u003e20104\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAPI Marine\u003c\/td\u003e\n        \u003ctd\u003e20053\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e982364\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e983424\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e983836\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003e988247\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis alternator fits a variety of Mercruiser engines from the 1960s through the 1980s. Please verify your specific model and OEM part number.\u003c\/p\u003e\n\u003cp\u003eAlso compatible with some OMC and Volvo Penta applications that use an equivalent alternator design.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e110\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1963–1966\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 2.5L (153ci) 4-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e120\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1964–1989\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 2.5L (153ci) 4-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e140\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1968–1986\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 3.0L (181ci) 4-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e140\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1963\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 3.2L (194ci) 6-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e150\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1964–1966\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 3.8L (230ci) 6-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e165\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1970–1982\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 4.1L (250ci) 6-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e190\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1963–1964\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 4.6L (283ci) 8-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e2.5L\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1987–1989\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 2.5L (153ci) 4-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e228\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1977–1981\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 5.0L (305ci) 8-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e233\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1975–1977\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eFord 5.8L (351ci) 8-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e250\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1977\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 5.7L (350ci) 8-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e260\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1978–1981\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 5.7L (350ci) 8-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e270\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1969–1972\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 5.7L (350ci) 8-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e3.0\/3.0LX\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1987–1989\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 3.0L (181ci) 4-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e330\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1977–1981\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 7.4L (454ci) 8-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e898\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1977–1984\u003c\/td\u003e\n        \u003ctd\u003e78403A2\u003c\/td\u003e\n        \u003ctd\u003eGM 5.0L (305ci) 8-cylinder\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOMC\u003c\/td\u003e\n        \u003ctd\u003eInboard \u0026amp; V-Drive\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1981–1987\u003c\/td\u003e\n        \u003ctd\u003e982364, 983424, 983836, 988247\u003c\/td\u003e\n        \u003ctd\u003eVarious engines\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMarine Alternator\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003e2-wire or 3-wire (varies by model)\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eCast aluminum\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e21.0cm L x 19.0cm W x 19.0cm H\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eV-belt pulley\u003c\/dd\u003e\n  \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e61-78 Amp (varies by source)\u003c\/dd\u003e\n  \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12V\u003c\/dd\u003e\n  \u003cdt\u003eRegulator\u003c\/dt\u003e\n\u003cdd\u003eInternal\u003c\/dd\u003e\n  \u003cdt\u003eOther Attributes\u003c\/dt\u003e\n\u003cdd\u003eDelco-style 10SI alternator design, Ignition Protected SAEJ1171\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Alternator (78403A2)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery's negative terminal to prevent electrical shorts.\u003c\/li\u003e\n  \u003cli\u003eIdentify and label all wires connected to the old alternator before removal.\u003c\/li\u003e\n  \u003cli\u003eLoosen the alternator mounting bolts and pivot bolt to relieve tension on the drive belt. Remove the belt from the pulley.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting bolts and carefully lift the old alternator out of the engine bay.\u003c\/li\u003e\n  \u003cli\u003eCompare the new alternator with the old one to ensure the mounting points and pulley are identical.\u003c\/li\u003e\n  \u003cli\u003ePosition the new alternator and loosely install the mounting bolts.\u003c\/li\u003e\n  \u003cli\u003ePlace the drive belt over the pulley and apply appropriate tension by levering the alternator. Tighten the pivot and adjustment bolts.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical wires to the correct terminals on the new alternator.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery's negative terminal.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and verify the charging voltage at the battery is within the correct range (typically 13.8V-14.5V).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhy are different amp ratings (61, 68, 78 Amp) listed for the same part number?\u003c\/summary\u003e\n  \u003cp\u003eDifferent aftermarket manufacturers produce this alternator with slight variations in output, though they all serve as functional replacements for the original. The performance difference is generally negligible for stock applications. We list it as \"61-78 Amp\" to cover these known variations.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a 2-wire or 3-wire alternator?\u003c\/summary\u003e\n  \u003cp\u003eThis Delco 10SI style alternator can be configured for either 2-wire or 3-wire systems, depending on the specific engine model and wiring harness. It is compatible with both setups, but you must ensure it is wired correctly for your application.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if my alternator is failing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include a weak or dead battery, a \"Check Battery\" or \"ALT\" warning light on the dash, dimming headlights and interior lights, or a whining\/grinding noise coming from the alternator itself.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I install this part myself?\u003c\/summary\u003e\n  \u003cp\u003eWhile installation is straightforward for those with mechanical experience, we recommend professional installation. Incorrect wiring or improper belt tension can cause damage to the part or your engine's electrical system.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between this and the original Mercruiser part?\u003c\/summary\u003e\n  \u003cp\u003eThis part is functionally equivalent to the original. It is made from similar materials to meet or exceed OEM specifications for fit and performance in the marine environment. The primary difference is that it is produced by a third-party manufacturer.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n\u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n\u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587181056315,"sku":"78403A2","price":199.95,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/78403A2_e6f24918-d462-43e0-9283-483b713b774e.jpg?v=1757934046"},{"product_id":"12v-110a-alternator-fits-mercruiser-qsd-2-0l-2-8l-4-2l-diesel-replaces-898101505","title":"12V\/110A Alternator – Fits Mercruiser QSD 2.0L, 2.8L \u0026 4.2L Diesel (Replaces 898101505)","description":"\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis high-output \u003cstrong\u003e12V\/110A alternator\u003c\/strong\u003e is engineered for Mercruiser QSD 2.0L, 2.8L, and 4.2L diesel engines that use a multi-groove serpentine belt system. It serves as a robust aftermarket replacement, designed to meet or exceed original equipment performance and durability standards.\u003c\/p\u003e\n\u003cp\u003eThis unit is a direct replacement for Mercury\/Mercruiser part number 898101505.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for direct OEM replacement fitment.\u003c\/li\u003e\n\u003cli\u003eFeatures a 6-groove serpentine pulley.\u003c\/li\u003e\n\u003cli\u003eProvides a reliable 110-amp output for demanding marine electrical systems.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury\/Mercruiser\u003c\/td\u003e\n        \u003ctd\u003e898101505\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis alternator fits a wide range of Mercruiser CMD QSD diesel engines. Please verify your specific model and part number before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.0 EI 115\u003c\/td\u003e\n\u003ctd\u003e115\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.0 EI 130\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.0 EI 150\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.0 EI 170\u003c\/td\u003e\n\u003ctd\u003e170\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.0 ES 130\u003c\/td\u003e\n\u003ctd\u003e130\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.0 ES 150\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.0 ES 170\u003c\/td\u003e\n\u003ctd\u003e170\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.8 EI 170\u003c\/td\u003e\n\u003ctd\u003e170\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.8 EI 210\u003c\/td\u003e\n\u003ctd\u003e210\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.8 EI 220\u003c\/td\u003e\n\u003ctd\u003e220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.8 EI 230\u003c\/td\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.8 ES 170\u003c\/td\u003e\n\u003ctd\u003e170\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.8 ES 210\u003c\/td\u003e\n\u003ctd\u003e210\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.8 ES 220\u003c\/td\u003e\n\u003ctd\u003e220\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 2.8 ES 230\u003c\/td\u003e\n\u003ctd\u003e230\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 4.2 EI 270\u003c\/td\u003e\n\u003ctd\u003e270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 4.2 EI 320\u003c\/td\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 4.2 EI 350\u003c\/td\u003e\n\u003ctd\u003e350\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 4.2 ES 270\u003c\/td\u003e\n\u003ctd\u003e270\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 4.2 ES 320\u003c\/td\u003e\n\u003ctd\u003e320\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercruiser\u003c\/td\u003e\n\u003ctd\u003eCMD QSD 4.2 ES 350\u003c\/td\u003e\n\u003ctd\u003e350\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e898101505\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAlternator\u003c\/dd\u003e\n  \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12V\u003c\/dd\u003e\n  \u003cdt\u003eWorking Voltage\u003c\/dt\u003e\n\u003cdd\u003e12V\u003c\/dd\u003e\n  \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e110 Amp\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eDiesel\u003c\/dd\u003e\n  \u003cdt\u003ePulley Type\u003c\/dt\u003e\n\u003cdd\u003eMulti-groove serpentine (6 groove)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e3 kg (6.61 lb)\u003c\/dd\u003e\n  \u003cdt\u003eHeight\u003c\/dt\u003e\n\u003cdd\u003e25.0 cm\u003c\/dd\u003e\n  \u003cdt\u003eWidth\u003c\/dt\u003e\n\u003cdd\u003e25.5 cm\u003c\/dd\u003e\n  \u003cdt\u003eLength\u003c\/dt\u003e\n\u003cdd\u003e28.0 cm\u003c\/dd\u003e\n  \u003cdt\u003eOEM Part Number\u003c\/dt\u003e\n\u003cdd\u003e898101505\u003c\/dd\u003e\n\u003c\/dl\u003e\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Alternator (898101505)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the vessel's battery at the master switch or terminals to prevent electrical shorts.\u003c\/li\u003e\n  \u003cli\u003eLoosen the tensioner pulley and remove the serpentine belt from the old alternator.\u003c\/li\u003e\n  \u003cli\u003eCarefully disconnect the electrical wiring from the back of the old alternator, noting each connection's position.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting bolts securing the alternator and lift it out of the engine bay.\u003c\/li\u003e\n  \u003cli\u003ePosition the new alternator and secure it with the original mounting bolts. Do not fully tighten yet.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical wiring to the correct terminals on the new unit.\u003c\/li\u003e\n  \u003cli\u003eReinstall the serpentine belt, ensuring it is correctly routed on all pulleys.\u003c\/li\u003e\n  \u003cli\u003eApply appropriate tension to the belt using the tensioner, then fully tighten all mounting bolts.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery, start the engine, and verify the charging voltage is within the correct range (typically 13.8V-14.5V).\u003c\/li\u003e\n\u003c\/ol\u003e\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if my alternator is failing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include dimming lights, a warning light on the dash, a weak or dead battery, slow-starting engine, or a squealing\/grinding noise from the engine bay. You can also test the output voltage with a multimeter; a healthy alternator should read between 13.8V and 14.5V while the engine is running.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this a direct fit for my engine?\u003c\/summary\u003e\n  \u003cp\u003eThis alternator is designed as a direct OEM replacement for the models listed in the compatibility table. Always compare the photos and part number (898101505) to your existing part to ensure a perfect match.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I swap the pulley from my old alternator?\u003c\/summary\u003e\n  \u003cp\u003eThis unit comes with a 6-groove serpentine pulley pre-installed. While it may be possible to swap pulleys, it is not recommended as it can cause alignment or performance issues and may void the warranty. Ensure the pulley matches your engine's belt system before purchase.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the recommended replacement interval for a marine alternator?\u003c\/summary\u003e\n  \u003cp\u003eThere is no fixed interval, as lifespan depends on usage, engine hours, and operating conditions (especially exposure to salt and moisture). It is best to inspect the alternator during regular service and replace it at the first sign of wear or decreased performance.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow is this aftermarket part different from the OEM version?\u003c\/summary\u003e\n  \u003cp\u003eOur aftermarket parts are engineered to meet or exceed OEM specifications for fit, form, and function. They are made with comparable high-quality materials but are available at a more competitive price point by eliminating brand-name markups.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDo I need any special tools to install this part?\u003c\/summary\u003e\n  \u003cp\u003eStandard mechanic's tools, including a socket set, wrenches, and a belt tensioner tool, are typically required. A multimeter is also essential for verifying the electrical output after installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587181121851,"sku":"898101505","price":99.99,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/898101505_455a9bd0-fd99-4f97-9e00-3289928668dd.jpg?v=1757934049"},{"product_id":"65-amp-alternator-fits-mercruiser-4-3l-5-0l-5-7l-6-2l-8-1l-engines-replaces-863077t","title":"65 Amp Alternator – Fits MerCruiser 4.3L, 5.0L, 5.7L, 6.2L \u0026 8.1L Engines (Replaces 863077T)","description":"\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis is a direct-fit \u003cstrong\u003e65 Amp Alternator – Fits MerCruiser 4.3L, 5.0L, 5.7L, 6.2L \u0026amp; 8.1L Engines (Replaces 863077T)\u003c\/strong\u003e, designed as a Delco-style alternator with a serpentine belt pulley. It is engineered for MerCruiser sterndrive and inboard engines from 2001 through 2016, including the 100 Vazer, V6, V8, 496 Magnum, 496 HO, and 8.1L models.\u003c\/p\u003e\n  \u003cp\u003eIt serves as a direct replacement for Mercury part numbers 863077T, 863077-1, and 8M0095472, as well as Delco 19020611, 19020612, Arrowhead ADR0316, and Sierra 18-6298.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Mounts as a direct replacement using the J180 hinge standard.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eCertification:\u003c\/strong\u003e SAE J1171 \u0026amp; ISO 8846 Marine Certified for ignition protection.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eIncluded:\u003c\/strong\u003e Comes as a complete alternator assembly.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n  \u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n  \u003cstyle\u003e\n    \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n    .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n    \/* Base table styles *\/\n    table.ss-table { width:100%; border-collapse:collapse; min-width:400px; }\n    table.ss-table th, table.ss-table td {\n      padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n    }\n\n    \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n    table.ss-table th {\n      white-space:nowrap;       \/* Do not wrap *\/\n      word-break:normal;        \/* Don’t break words *\/\n      letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n      font-weight:600;\n      background:#f8fafc;\n    }\n\n    \/* Small screen optimization *\/\n    @media (max-width:480px){\n      table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n    }\n  \u003c\/style\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Interchange\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e863077-1\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMercury\u003c\/td\u003e\n\u003ctd\u003e8M0095472\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eDelco\u003c\/td\u003e\n\u003ctd\u003e19020611\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eDelco\u003c\/td\u003e\n\u003ctd\u003e19020612\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eArrowhead\u003c\/td\u003e\n\u003ctd\u003eADR0316\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-6298\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model and year in the tables below to ensure proper fitment.\u003c\/p\u003e\n\n  \u003ch3\u003eMerCruiser Sterndrive Engines\u003c\/h3\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"MerCruiser Sterndrive Engine Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eModel\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eYears\u003c\/th\u003e\n          \u003cth\u003eOEM Part No.\u003c\/th\u003e\n          \u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003e4.3L (Carb.) Alpha \u0026amp; Bravo\u003c\/td\u003e\n\u003ctd\u003e262 HP\u003c\/td\u003e\n\u003ctd\u003e2002–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e4.3L (MFI) Alpha \u0026amp; Bravo\u003c\/td\u003e\n\u003ctd\u003e262 HP\u003c\/td\u003e\n\u003ctd\u003e2002–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e4.3L MPI\u003c\/td\u003e\n\u003ctd\u003e262 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2002\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e5.0L (2-BBL) (Gen+)\u003c\/td\u003e\n\u003ctd\u003e305 HP\u003c\/td\u003e\n\u003ctd\u003e1998–2002\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003eSerial 0M3200025 through 2A528897\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e5.0L (Carb.) Alpha \u0026amp; Bravo\u003c\/td\u003e\n\u003ctd\u003e305 HP\u003c\/td\u003e\n\u003ctd\u003e2002–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e5.0L MPI Alpha \u0026amp; Bravo\u003c\/td\u003e\n\u003ctd\u003e305 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e5.7L (2-BBL) (Gen+)\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e1998–2002\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003eSerial 0M3200025 through 2A528897\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e5.7L (Carb.) Alpha \u0026amp; Bravo\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e2002–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e350 Mag MPI Alpha \u0026amp; Bravo\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e350 Mag MPI Hor Alpha \u0026amp; Bravo\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003eHorizon model\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMX 6.2L MPI\u003c\/td\u003e\n\u003ctd\u003e377 HP\u003c\/td\u003e\n\u003ctd\u003e2000–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMX 6.2L MPI Horizon\u003c\/td\u003e\n\u003ctd\u003e377 HP\u003c\/td\u003e\n\u003ctd\u003e2000–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e496 Mag\u003c\/td\u003e\n\u003ctd\u003e496 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e496 Mag HO\u003c\/td\u003e\n\u003ctd\u003e496 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003eHigh Output model\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\n  \u003ch3\u003eMerCruiser Inboard Engines\u003c\/h3\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"MerCruiser Inboard Engine Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eModel\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eYears\u003c\/th\u003e\n          \u003cth\u003eOEM Part No.\u003c\/th\u003e\n          \u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n\u003ctd\u003e5.7L EFI (Gen+)\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e1998–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e5.7L MIE\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e1999–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e350 Mag MPI\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e1999–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003eGen+\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e350 Mag MPI Horizon\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e1999–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMX 6.2L MPI\u003c\/td\u003e\n\u003ctd\u003e377 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003eMX 6.2L MPI Horizon\u003c\/td\u003e\n\u003ctd\u003e377 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e8.1S Horizon\u003c\/td\u003e\n\u003ctd\u003e496 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n        \u003ctr\u003e\n\u003ctd\u003e8.1S HO\u003c\/td\u003e\n\u003ctd\u003e496 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003eHigh Output model\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n  \n  \u003ch3\u003eMerCruiser Ski \u0026amp; Performance Engines\u003c\/h3\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n      \u003ctable class=\"ss-table\" aria-label=\"MerCruiser Ski \u0026amp; Performance Engine Compatibility\"\u003e\n          \u003cthead\u003e\n              \u003ctr\u003e\n                  \u003cth\u003eModel\u003c\/th\u003e\n                  \u003cth\u003eRated HP\u003c\/th\u003e\n                  \u003cth\u003eYears\u003c\/th\u003e\n                  \u003cth\u003eOEM Part No.\u003c\/th\u003e\n                  \u003cth\u003eNotes\u003c\/th\u003e\n              \u003c\/tr\u003e\n          \u003c\/thead\u003e\n          \u003ctbody\u003e\n              \u003ctr\u003e\n\u003ctd\u003eBlack Scorpion Ski (Gen+)\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e1997–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e5.7L Ski (CARB)\u003c\/td\u003e\n\u003ctd\u003e350 HP\u003c\/td\u003e\n\u003ctd\u003e1998–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003eMX 6.2L BS MPI Ski\u003c\/td\u003e\n\u003ctd\u003e377 HP\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e377 Scorpion\u003c\/td\u003e\n\u003ctd\u003e377 HP\u003c\/td\u003e\n\u003ctd\u003e1997–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e377 Scorpion HO EC\u003c\/td\u003e\n\u003ctd\u003e377 HP\u003c\/td\u003e\n\u003ctd\u003e2000–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003eHigh Output model\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e500 EFI\u003c\/td\u003e\n\u003ctd\u003e502 HP\u003c\/td\u003e\n\u003ctd\u003e2000–2002\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e525 EFI\u003c\/td\u003e\n\u003ctd\u003e502 HP\u003c\/td\u003e\n\u003ctd\u003e2000–2002\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e600SCI\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e2002–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e662SCI\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e2002–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e700SCI\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e2002–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n              \u003ctr\u003e\n\u003ctd\u003e100 Vazer\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003ctd\u003e2001–2016\u003c\/td\u003e\n\u003ctd\u003e863077T\u003c\/td\u003e\n\u003ctd\u003e\u003c\/td\u003e\n\u003c\/tr\u003e\n          \u003c\/tbody\u003e\n      \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMarine Alternator\u003c\/dd\u003e\n    \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e65-70 Amp\u003c\/dd\u003e\n    \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12V\u003c\/dd\u003e\n    \u003cdt\u003eRotation\u003c\/dt\u003e\n\u003cdd\u003eClockwise\u003c\/dd\u003e\n    \u003cdt\u003eMounting\u003c\/dt\u003e\n\u003cdd\u003eJ180 Hinge\u003c\/dd\u003e\n    \u003cdt\u003eBelt Type\u003c\/dt\u003e\n\u003cdd\u003eSerpentine\u003c\/dd\u003e\n    \u003cdt\u003ePulley Grooves\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n    \u003cdt\u003ePulley Diameter\u003c\/dt\u003e\n\u003cdd\u003e50mm (1.97\")\u003c\/dd\u003e\n    \u003cdt\u003eB+ Output\u003c\/dt\u003e\n\u003cdd\u003eM6\u003c\/dd\u003e\n    \u003cdt\u003eTerminal Type\u003c\/dt\u003e\n\u003cdd\u003eConnector for I Terminal, No R Terminal\u003c\/dd\u003e\n    \u003cdt\u003eRemote Sense\u003c\/dt\u003e\n\u003cdd\u003eNo\u003c\/dd\u003e\n    \u003cdt\u003ePolarity\u003c\/dt\u003e\n\u003cdd\u003eNegative\u003c\/dd\u003e\n    \u003cdt\u003eHousing\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e4.59 kg (10.11 lbs)\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e22cm L x 20cm W x 20cm H\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Alternator Assembly (Replaces 863077T)\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the boat's battery terminals to prevent electrical shorts.\u003c\/li\u003e\n    \u003cli\u003eLoosen the belt tensioner and remove the serpentine belt from the alternator pulley.\u003c\/li\u003e\n    \u003cli\u003eIdentify and carefully disconnect the electrical wiring from the back of the old alternator.\u003c\/li\u003e\n    \u003cli\u003eRemove the mounting bolts securing the alternator to the engine bracket.\u003c\/li\u003e\n    \u003cli\u003eLift the old alternator out of the engine bay.\u003c\/li\u003e\n    \u003cli\u003ePosition the new alternator and secure it with the original mounting bolts.\u003c\/li\u003e\n    \u003cli\u003eReconnect the electrical connectors to the appropriate terminals.\u003c\/li\u003e\n    \u003cli\u003eRe-install the serpentine belt and apply correct tension using the tensioner.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery terminals.\u003c\/li\u003e\n    \u003cli\u003eStart the engine and use a multimeter to verify the charging system output is within specification (typically 13.5V-14.5V).\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow do I confirm this alternator fits my specific engine?\u003c\/summary\u003e\n    \u003cp\u003eThe surest way is to match the part number from your old alternator to one of the cross-references in the Part Number Matrix. If you can't find a number, use the Engine \u0026amp; Model Compatibility tables to find your engine model and year.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this a 65 Amp or 70 Amp alternator?\u003c\/summary\u003e\n    \u003cp\u003eThis unit is sold as a 65-70 amp replacement. While the original Mercury specification is 65 amps, some aftermarket suppliers rate it at 70 amps. It is a direct fit and electronically compatible replacement for the original 863077T and its equivalents, regardless of the amp rating discrepancy.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common signs of a failing alternator?\u003c\/summary\u003e\n    \u003cp\u003eSymptoms include dimming dash lights, a battery warning light on your console, a frequently dead or weak battery, and sometimes a grinding or whining noise coming from the engine bay. You may also notice electrical components operating poorly at low RPMs.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eIs this part different from the original OEM part?\u003c\/summary\u003e\n    \u003cp\u003eThis is an aftermarket part designed to meet or exceed OEM specifications for fit, form, and function. It offers comparable performance and reliability to the original Delco or Mercury alternator at a better value.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the difference between OEM and aftermarket parts?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is for an aftermarket replacement, not an OEM part. It is built to OEM-level specifications with comparable materials in an ISO 9002 certified facility and is batch-inspected for quality and consistency.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are the shipping speed and cost?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly—typical transit time is 5–15 days. Standard shipping is free to most regions, with expedited options available at checkout where applicable.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n    \u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal marine use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused items in their original condition. See our full policy page or contact us for instructions.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images and specifications against your original part before ordering. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement component, not an original equipment manufacturer (OEM) part.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is highly recommended for safety, performance, and to prevent damage to the electrical system.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and rigorously tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery on most orders, reaching you in 5–15 days worldwide.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — We deliver fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587181285691,"sku":"863077T","price":79.3,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/863077T_ef5bb815-dd8c-49b1-ada9-89c1e5e9afc2.png?v=1757934051"},{"product_id":"55-amp-alternator-fits-mercruiser-v6-and-v8-sterndrives-and-inboards-replaces-807652t","title":"55 Amp Alternator – Fits MerCruiser V6 and V8 Sterndrives and Inboards (Replaces 807652T)","description":"\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003e55 Amp Alternator – Fits MerCruiser V6 and V8 Sterndrives and Inboards (Replaces 807652T)\u003c\/strong\u003e is designed for General Motors-built MerCruiser V6 (262 CID) and V8 (305 \u0026amp; 350 CID) sterndrive or inboard engines from 1996 through 1999 that use a serpentine belt drive system.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for Mercury\/Quicksilver 807652T, Sierra 18-5967, and ARCO 60055, ensuring reliable performance and fitment.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eInstalls on engines using a multi-groove serpentine pulley system.\u003c\/li\u003e\n\u003cli\u003eFeatures a 2-inch mounting foot for secure attachment.\u003c\/li\u003e\n\u003cli\u003eProvides a 55 Amp, 12 Volt electrical output with an internal regulator.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury \/ Quicksilver\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-5967\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eARCO\u003c\/td\u003e\n        \u003ctd\u003e60055\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis part is designed for specific MerCruiser sterndrive and inboard engine models. Check your engine's serial number against the ranges provided to ensure an exact match.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3L (GEN+) (2 BBL.) GM 262 V-6\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0L010044–0M614999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3LH (GEN+) (4 BBL.) GM 262 V-6\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0L010044–0M614999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3LX (GEN+) (2 BBL.) GM 262 V-6\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1996–1997\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0F803000–0K999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e4.3LXH (GEN+) (4 BBL.) GM 262 V-6\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1996–1997\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0F803114–0K999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.0L (2 BBL.) GM 305 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998–2001\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0L015751–0M599999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L (2 BBL.) GM 350 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0K001527–0K999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L (2 BBL.) GM 350 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998–2001\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0L010037–0M599999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L CARB MIE\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0L002003–0M316999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L MIE GM 350 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0K040307–0K999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7LX (4 BBL) GM 350 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0K001527–0K999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e350 MAG (SKI) GM 350 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0K040400–0K999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e350 MAG. ALPHA (4 BBL.) GM 350 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0K001527–0K999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L COMPETITION SKI GM 350 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0K040004–0K999999\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e5.7L COMPETITION SKI (GEN+) GM 350 V-8\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1998\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 0L002005–0M316999\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e357 Alpha 4V\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 1G400000 \u0026amp; Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e357 Mag Bravo 4V\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 1G400000 \u0026amp; Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003e383 Mag Bravo 4V\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e807652T\u003c\/td\u003e\n        \u003ctd\u003eSerial 1G480748 \u0026amp; Up\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003e55 Amp Alternator\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eSerpentine Belt System\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eMulti-groove Serpentine Pulley\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e19.0 × 18.5 × 20.5 cm (7.5 × 7.3 × 8.1 inches)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e4.08 kg (9 lbs)\u003c\/dd\u003e\n  \u003cdt\u003eMounting Foot\u003c\/dt\u003e\n\u003cdd\u003e2-inch\u003c\/dd\u003e\n  \u003cdt\u003eElectrical Output\u003c\/dt\u003e\n\u003cdd\u003e55 Amp\u003c\/dd\u003e\n  \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12 Volt\u003c\/dd\u003e\n  \u003cdt\u003eRegulator\u003c\/dt\u003e\n\u003cdd\u003eInternal\u003c\/dd\u003e\n  \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 year\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e1 x 55 Amp Alternator Assembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n\u003cli\u003eDisconnect the battery terminals, starting with the negative cable.\u003c\/li\u003e\n\u003cli\u003eLoosen the serpentine belt tensioner and remove the belt from the alternator pulley.\u003c\/li\u003e\n\u003cli\u003eDisconnect the main power wire and the field wire connector from the old alternator.\u003c\/li\u003e\n\u003cli\u003eRemove the alternator mounting bolts and carefully lift the old unit out of the engine bay.\u003c\/li\u003e\n\u003cli\u003eInstall the new alternator, ensuring the mounting foot is correctly seated. Secure it with the mounting bolts.\u003c\/li\u003e\n\u003cli\u003eReconnect the power and field wire connectors to the new unit.\u003c\/li\u003e\n\u003cli\u003eRoute the serpentine belt over the new alternator pulley and re-apply tension.\u003c\/li\u003e\n\u003cli\u003eReconnect the battery terminals, starting with the positive cable.\u003c\/li\u003e\n\u003cli\u003eStart the engine and verify the alternator is charging correctly using a voltmeter.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if my alternator is failing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include dimming lights, a warning light on the dashboard, a weak or dead battery, frequent need for jump-starts, or a whining\/grinding noise coming from the engine bay. You can test the voltage at the battery with the engine running; it should be between 13.5 and 14.5 volts.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit engines outside the 1996–1999 year range?\u003c\/summary\u003e\n  \u003cp\u003eThis alternator is specifically designed for the model years listed. Using it on other engines is not recommended, as fitment, wiring, and pulley alignment may differ, potentially causing damage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between this aftermarket alternator and an OEM part?\u003c\/summary\u003e\n  \u003cp\u003eOur aftermarket alternator is built to match OEM specifications for performance and fit. While it is not an original Mercury part, it is manufactured in an ISO 9002 facility and offers a high-quality, cost-effective alternative without sacrificing reliability.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes this alternator come with the serpentine pulley?\u003c\/summary\u003e\n  \u003cp\u003eYes, the alternator assembly includes the multi-groove serpentine pulley required for installation.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat common tools are needed for this installation?\u003c\/summary\u003e\n  \u003cp\u003eYou will typically need a set of metric and\/or imperial wrenches and sockets, a serpentine belt tensioner tool or breaker bar, and a wire brush for cleaning connections. Always consult a service manual for your specific engine.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should a marine alternator be replaced?\u003c\/summary\u003e\n  \u003cp\u003eThere is no fixed replacement interval. Alternators typically last for many years, but their lifespan can be affected by usage, exposure to moisture, and electrical load. Replace it when you notice consistent signs of failure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n\u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n\u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n\u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n\u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587181351227,"sku":"807652T","price":279.14,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/807652T_3bb8a69e-a6fd-4846-bb24-37bb6fcf8023.jpg?v=1757934074"},{"product_id":"alternator-12v-50a-fits-mercruiser-cummins-cmd-1-7l-marine-engines-replaces-882571-8m0084523","title":"Alternator 12V 50A – Fits Mercruiser\/Cummins CMD 1.7L Marine Engines (Replaces 882571, 8M0084523)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis is a direct-fit aftermarket \u003cstrong\u003eAlternator 12V 50A – Fits Mercruiser\/Cummins CMD 1.7L Marine Engines (Replaces 882571, 8M0084523)\u003c\/strong\u003e. It is designed for Mercruiser\/Cummins CMD 1.7 MI 120 L\/L4 and CMD 1.7 MS 120 L\/L4 diesel marine engines (120 HP, 4-Stroke) manufactured between 2004–2005.\u003c\/p\u003e\n\u003cp\u003eIt provides a reliable power source, serving as a direct interchange for Mercruiser, Cummins, Mitsubishi, Isuzu, and Lucas Electric part numbers.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Direct OEM-style fit and connection.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEnvironment:\u003c\/strong\u003e Built for marine conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eInclusions:\u003c\/strong\u003e Includes the alternator unit.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003e882571 \/ 8M0084523\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eCummins\u003c\/td\u003e\n        \u003ctd\u003e882571 \/ 8M0084523\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMitsubishi\u003c\/td\u003e\n        \u003ctd\u003eA7TA2991\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eIsuzu\u003c\/td\u003e\n        \u003ctd\u003e8972477180\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eLucas Electric\u003c\/td\u003e\n        \u003ctd\u003eLRA02960\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eKubota\u003c\/td\u003e\n        \u003ctd\u003e8-97247-718-0\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis alternator fits specific Mercruiser sterndrive diesel engines based on the Isuzu 1.7L platform.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003eCMD 1.7 MI 120 L\/L4\u003c\/td\u003e\n        \u003ctd\u003e120\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2004–2005\u003c\/td\u003e\n        \u003ctd\u003e882571\/8M0084523\u003c\/td\u003e\n        \u003ctd\u003eDiesel Engine\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003eCMD 1.7 MS 120 L\/L4\u003c\/td\u003e\n        \u003ctd\u003e120\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2004–2005\u003c\/td\u003e\n        \u003ctd\u003e882571\/8M0084523\u003c\/td\u003e\n        \u003ctd\u003eDiesel Engine\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercruiser\u003c\/td\u003e\n        \u003ctd\u003eD1.7L DTI (Alpha)\u003c\/td\u003e\n        \u003ctd\u003e120\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e2004–2005\u003c\/td\u003e\n        \u003ctd\u003e882571\/8M0084523\u003c\/td\u003e\n        \u003ctd\u003eIsuzu 1.7L - 103ci - 4cyl\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eMarine Alternator\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM Replacement\u003c\/dd\u003e\n  \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12V\u003c\/dd\u003e\n  \u003cdt\u003eAmperage\u003c\/dt\u003e\n\u003cdd\u003e50A\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eStandard Marine Connections\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eMetal\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eSilver\/Metal\u003c\/dd\u003e\n  \u003cdt\u003eProduct Dimensions\u003c\/dt\u003e\n\u003cdd\u003e23.0 cm (L) x 20.0 cm (W) x 20.0 cm (H)\u003c\/dd\u003e\n  \u003cdt\u003ePulley Type\u003c\/dt\u003e\n\u003cdd\u003eSolid\u003c\/dd\u003e\n  \u003cdt\u003ePulley Size\u003c\/dt\u003e\n\u003cdd\u003e6 Groove (50 mm)\u003c\/dd\u003e\n  \u003cdt\u003eRegulator Clock Position\u003c\/dt\u003e\n\u003cdd\u003e10:30\u003c\/dd\u003e\n  \u003cdt\u003eMount Hole ID 1\u003c\/dt\u003e\n\u003cdd\u003e8.2 mm Unthreaded\u003c\/dd\u003e\n  \u003cdt\u003eMount Hole ID 3\u003c\/dt\u003e\n\u003cdd\u003e10.2 mm Unthreaded\u003c\/dd\u003e\n  \u003cdt\u003eFan Location\u003c\/dt\u003e\n\u003cdd\u003eInternal\u003c\/dd\u003e\n  \u003cdt\u003eRegulator Location\u003c\/dt\u003e\n\u003cdd\u003eInternal\u003c\/dd\u003e\n  \u003cdt\u003eTerminal ID 2\u003c\/dt\u003e\n\u003cdd\u003eB+ M5x0.8\u003c\/dd\u003e\n  \u003cdt\u003ePolarity\u003c\/dt\u003e\n\u003cdd\u003eNegative\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Alternator (\u003cspan style=\"color:#d0021b;\"\u003e882571\/8M0084523\u003c\/span\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the negative terminal from your boat's battery.\u003c\/li\u003e\n  \u003cli\u003eLoosen the drive belt tensioner and remove the belt from the alternator pulley.\u003c\/li\u003e\n  \u003cli\u003eIdentify and disconnect the electrical wires from the back of the old alternator, noting their positions.\u003c\/li\u003e\n  \u003cli\u003eRemove the mounting bolts securing the alternator to the engine block.\u003c\/li\u003e\n  \u003cli\u003eCarefully lift the old alternator out.\u003c\/li\u003e\n  \u003cli\u003ePosition the new alternator and secure it with the original mounting bolts.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical connections to the appropriate terminals.\u003c\/li\u003e\n  \u003cli\u003eReinstall the drive belt and apply correct tension.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery's negative terminal.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and check the voltmeter to ensure the new alternator is charging correctly (typically 13.8–14.5V).\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm this alternator fits my engine?\u003c\/summary\u003e\u003cp\u003eCheck your engine model and year against our compatibility table. The easiest way is to match the part number from your old alternator to one of the cross-reference numbers listed in the Part Number Matrix.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing alternator?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include dimming lights, a \"Check Battery\" or \"ALT\" warning on your dashboard, a weak or dead battery, a whining noise from the engine, or a burning smell from the alternator itself. A multimeter reading below 13V at the battery while the engine is running also indicates a charging issue.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eHow does this part differ from the original OEM component?\u003c\/summary\u003e\u003cp\u003eThis is an aftermarket part designed to meet or exceed OEM specifications for fit, form, and function. It uses comparable materials and manufacturing processes but is available at a more competitive price point.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs any special maintenance required for this alternator?\u003c\/summary\u003e\u003cp\u003eNo special maintenance is needed. However, ensure the drive belt is kept at the proper tension and that all electrical connections remain clean and tight. Periodically inspect for any signs of corrosion or wear.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587181383995,"sku":"882571","price":84.9,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/882571_da01be59-6399-4495-bfc7-85fdce7ce4fd.jpg?v=1757934075"},{"product_id":"honda-marine-alternator-assembly-fits-honda-bf115-bf130-hp-v4-outboards-replaces-31630-zw5-003","title":"Honda Marine Alternator Assembly – Fits Honda BF115\/BF130 HP V4 Outboards (Replaces 31630-ZW5-003)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eHonda Marine Alternator Assembly\u003c\/strong\u003e is designed for Honda BF115 and BF130 HP V4 4-stroke outboard engines from 1997 and newer. It serves as a reliable replacement to restore your engine's charging system to factory specifications.\u003c\/p\u003e\n\u003cp\u003eIt directly interchanges with Honda part number 31630-ZW5-003 and Sierra part number 18-6475.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered for direct OEM replacement and bolt-on fitting.\u003c\/li\u003e\n  \u003cli\u003eFeatures standard OEM electrical connections for plug-and-play installation.\u003c\/li\u003e\n  \u003cli\u003eConstructed with a durable alloy steel housing.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003e31630-ZW5-003\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-6475\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis alternator is compatible with a range of Honda V4 outboard engines. Please check your specific model and year against the list below.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eBF115A\u003c\/td\u003e\n        \u003ctd\u003e115\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1999–2014\u003c\/td\u003e\n        \u003ctd\u003e31630-ZW5-003\u003c\/td\u003e\n        \u003ctd\u003eV4 Engine\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eBF115A1, A2, A3, AX\u003c\/td\u003e\n        \u003ctd\u003e115\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–Up\u003c\/td\u003e\n        \u003ctd\u003e31630-ZW5-003\u003c\/td\u003e\n        \u003ctd\u003eV4 Engine\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eBF130A\u003c\/td\u003e\n        \u003ctd\u003e130\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1999–2004\u003c\/td\u003e\n        \u003ctd\u003e31630-ZW5-003\u003c\/td\u003e\n        \u003ctd\u003eV4 Engine\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eHonda\u003c\/td\u003e\n        \u003ctd\u003eBF130A1, A2, A3, A4, AX\u003c\/td\u003e\n        \u003ctd\u003e130\u003c\/td\u003e\n        \u003ctd\u003e4-Stroke\u003c\/td\u003e\n        \u003ctd\u003e1997–Up\u003c\/td\u003e\n        \u003ctd\u003e31630-ZW5-003\u003c\/td\u003e\n        \u003ctd\u003eV4 Engine\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAlternator Assembly\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM Replacement\u003c\/dd\u003e\n  \u003cdt\u003eFuel Type\u003c\/dt\u003e\n\u003cdd\u003eGasoline\u003c\/dd\u003e\n  \u003cdt\u003eConnection\u003c\/dt\u003e\n\u003cdd\u003eOEM Electrical Connections\u003c\/dd\u003e\n  \u003cdt\u003eHousing Material\u003c\/dt\u003e\n\u003cdd\u003eAlloy Steel\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e18.0\" x 18.0\" x 21.0\"\u003c\/dd\u003e\n  \u003cdt\u003eFitting Type\u003c\/dt\u003e\n\u003cdd\u003eDirect Bolt-On\u003c\/dd\u003e\n  \u003cdt\u003eThread Size\u003c\/dt\u003e\n\u003cdd\u003eM6-1.0 for B+ Terminal\u003c\/dd\u003e\n  \u003cdt\u003eVoltage\u003c\/dt\u003e\n\u003cdd\u003e12V\u003c\/dd\u003e\n  \u003cdt\u003eAmperage\u003c\/dt\u003e\n\u003cdd\u003e55A\u003c\/dd\u003e\n  \u003cdt\u003eRotation\u003c\/dt\u003e\n\u003cdd\u003eCW\u003c\/dd\u003e\n  \u003cdt\u003eClock Position\u003c\/dt\u003e\n\u003cdd\u003e7\u003c\/dd\u003e\n  \u003cdt\u003ePulley\u003c\/dt\u003e\n\u003cdd\u003e4-Groove, 62mm OD\u003c\/dd\u003e\n  \u003cdt\u003eRegulator\u003c\/dt\u003e\n\u003cdd\u003eIR\u003c\/dd\u003e\n  \u003cdt\u003eFan Type\u003c\/dt\u003e\n\u003cdd\u003eIF\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:#d0021b;\"\u003e1 x\u003c\/span\u003e Alternator Assembly (31630-ZW5-003)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery's negative terminal to prevent electrical shorts.\u003c\/li\u003e\n  \u003cli\u003eLocate and identify the old alternator. Loosen the serpentine belt by releasing the tensioner.\u003c\/li\u003e\n  \u003cli\u003eRemove the electrical connections from the back of the alternator, noting their positions.\u003c\/li\u003e\n  \u003cli\u003eUnbolt and remove the old alternator from its mounting brackets.\u003c\/li\u003e\n  \u003cli\u003eCompare the new alternator with the old one to ensure an exact match.\u003c\/li\u003e\n  \u003cli\u003eInstall the new alternator, tightening the mounting bolts to the manufacturer's torque specifications.\u003c\/li\u003e\n  \u003cli\u003eReconnect the electrical connections securely.\u003c\/li\u003e\n  \u003cli\u003eReinstall the serpentine belt and apply the correct tension.\u003c\/li\u003e\n  \u003cli\u003eReconnect the battery's negative terminal.\u003c\/li\u003e\n  \u003cli\u003eStart the engine and verify the charging system is operating correctly using a voltmeter (voltage should typically be between 13.8V and 14.5V with the engine running).\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I know if my alternator is failing?\u003c\/summary\u003e\u003cp\u003eCommon signs include a warning light on the dash, dimming headlights, a weak or dead battery, strange noises from the engine bay (grinding or whining), or the smell of burning rubber or wires.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWill this fit my Honda BF115AX model?\u003c\/summary\u003e\u003cp\u003eYes, this alternator is compatible with Honda BF115A1, A2, A3, and AX models from 1997-Up, as well as several other BF115 and BF130 models. Always cross-reference your OEM part number (31630-ZW5-003) to be certain.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a 12V or 24V alternator?\u003c\/summary\u003e\u003cp\u003eThis is a 12-volt alternator with a 55-amp output, designed for the specified Honda outboard engines.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between this aftermarket unit and the original Honda OEM part?\u003c\/summary\u003e\u003cp\u003eThis part is functionally equivalent and built to meet or exceed original specifications for fit and performance. The primary difference is that it is not branded by Honda. It provides a reliable, cost-effective alternative.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50587181416763,"sku":"31630-ZW5-003","price":144.75,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/31630-ZW5-003_f60cfcda-02f7-4577-b64f-256bce049910.jpg?v=1757934051"},{"product_id":"alternator-fits-mercury-75-115-hp-4-stroke-outboard-engines-replaces-8m0063970-897755t","title":"Alternator – Fits Mercury 75-115 HP 4-Stroke Outboard Engines (Replaces 8M0063970, 897755T)","description":"\u003cstyle\u003e\n\/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n.ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n\/* Base table styles *\/\ntable.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\ntable.ss-table th, table.ss-table td {\n  padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n}\n\n\/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\ntable.ss-table th {\n  white-space:nowrap;       \/* Do not wrap *\/\n  word-break:normal;        \/* Don’t break words *\/\n  letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n  font-weight:600;\n  background:#f8fafc;\n}\n\n\/* Small screen optimization *\/\n@media (max-width:480px){\n  table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n}\n\u003c\/style\u003e\n\u003csection\u003e\n  \u003ch2\u003eProduct Details\u003c\/h2\u003e\n  \u003cp\u003eThis is a high-output aftermarket \u003cstrong\u003eAlternator – Fits Mercury 75-115 HP 4-Stroke Outboard Engines (Replaces 8M0063970, 897755T)\u003c\/strong\u003e. It is engineered to perform as a direct replacement for original equipment on Mercury Marine 75, 80, 90, 100, and 115 HP 4-Stroke EFI outboard engines manufactured between 2001 and 2020 (serial numbers 1B366823 to 2B094995).\u003c\/p\u003e\n  \u003cp\u003eThis unit provides a reliable, cost-effective interchange for several part numbers, including Mercury 8M0063970 and 897755T, ARCO 20852, Delco 8400080, and others.\u003c\/p\u003e\n  \u003cul\u003e\n    \u003cli\u003eInstallation Method: Belt-driven serpentine pulley\u003c\/li\u003e\n    \u003cli\u003ePower Output: 12 Volt \/ 50 Amp for robust charging\u003c\/li\u003e\n    \u003cli\u003ePackage includes one complete alternator assembly\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n  \u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003ePart Number\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e897755T\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eARCO\u003c\/td\u003e\n          \u003ctd\u003e20852\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eDelco\u003c\/td\u003e\n          \u003ctd\u003e8400080\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eArrowhead\u003c\/td\u003e\n          \u003ctd\u003eADR0313\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eJ\u0026amp;N\u003c\/td\u003e\n          \u003ctd\u003e400-12367\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eEMP\u003c\/td\u003e\n          \u003ctd\u003e4-6840\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eSierra\u003c\/td\u003e\n          \u003ctd\u003e18-6840\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eAPI Marine\u003c\/td\u003e\n          \u003ctd\u003e20126\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n  \u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n  \u003cp\u003eDesigned primarily for Mercury 4-stroke EFI models from 75 to 115 HP. Please check your engine's serial number against the range provided (1B366823–2B094995) where applicable.\u003c\/p\u003e\n  \u003cdiv class=\"ss-table-wrap\"\u003e\n    \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n      \u003cthead\u003e\n        \u003ctr\u003e\n          \u003cth\u003eBrand\u003c\/th\u003e\n          \u003cth\u003eModel\u003c\/th\u003e\n          \u003cth\u003eRated HP\u003c\/th\u003e\n          \u003cth\u003eStroke\u003c\/th\u003e\n          \u003cth\u003eYears\u003c\/th\u003e\n          \u003cth\u003eOEM Part No.\u003c\/th\u003e\n          \u003cth\u003eNotes\u003c\/th\u003e\n        \u003c\/tr\u003e\n      \u003c\/thead\u003e\n      \u003ctbody\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e75 HP EFI\u003c\/td\u003e\n          \u003ctd\u003e75\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2020\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003eS\/N 1B366823-2B094995\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e80 Jet EFI\u003c\/td\u003e\n          \u003ctd\u003e80\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2014\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003eS\/N 1B366823-2B094995\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e90 HP EFI\u003c\/td\u003e\n          \u003ctd\u003e90\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2020\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003eS\/N 1B366823-2B094995\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e100 HP EFI\u003c\/td\u003e\n          \u003ctd\u003e100\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2012\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003eS\/N 1B366823-2B094995\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e115 HP EFI\u003c\/td\u003e\n          \u003ctd\u003e115\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2020\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003eS\/N 1B366823-2B094995\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e115ELPT EFI\u003c\/td\u003e\n          \u003ctd\u003e115\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2012\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e115ELPT EFI Saltwater\u003c\/td\u003e\n          \u003ctd\u003e115\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2004–2005\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e115EXLPT EFI\u003c\/td\u003e\n          \u003ctd\u003e115\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2006–2012\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e115EXLPT EFI Saltwater\u003c\/td\u003e\n          \u003ctd\u003e115\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2001–2005\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e75ELPT\u003c\/td\u003e\n          \u003ctd\u003e75\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2013–2020\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e75ELPT EFI\u003c\/td\u003e\n          \u003ctd\u003e75\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2006–2012\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e80ELPT Jet Optimax\u003c\/td\u003e\n          \u003ctd\u003e80\u003c\/td\u003e\n          \u003ctd\u003e2-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2009–2014\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e90ELPT\u003c\/td\u003e\n          \u003ctd\u003e90\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2013–2020\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e90ELPT EFI\u003c\/td\u003e\n          \u003ctd\u003e90\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2006–2012\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e90EXLPT\u003c\/td\u003e\n          \u003ctd\u003e90\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2013–2020\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e90EXLPT EFI\u003c\/td\u003e\n          \u003ctd\u003e90\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2006–2012\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e115ELPT\u003c\/td\u003e\n          \u003ctd\u003e115\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2013–2020\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n          \u003ctd\u003eMercury\u003c\/td\u003e\n          \u003ctd\u003e115EXLPT\u003c\/td\u003e\n          \u003ctd\u003e115\u003c\/td\u003e\n          \u003ctd\u003e4-Stroke\u003c\/td\u003e\n          \u003ctd\u003e2013–2020\u003c\/td\u003e\n          \u003ctd\u003e8M0063970\/897755T\u003c\/td\u003e\n          \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n      \u003c\/tbody\u003e\n    \u003c\/table\u003e\n  \u003c\/div\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n  \u003cdl\u003e\n    \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAlternator\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eBelt-driven\u003c\/dd\u003e\n    \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e12 Volt \/ 50 Amp\u003c\/dd\u003e\n    \u003cdt\u003eRotation\u003c\/dt\u003e\n\u003cdd\u003eClockwise (CW)\u003c\/dd\u003e\n    \u003cdt\u003ePulley Type\u003c\/dt\u003e\n\u003cdd\u003e4-Groove, 58.5mm OD\u003c\/dd\u003e\n    \u003cdt\u003eFan Type\u003c\/dt\u003e\n\u003cdd\u003eInternal Fan (IF)\u003c\/dd\u003e\n    \u003cdt\u003eRegulator\u003c\/dt\u003e\n\u003cdd\u003eInternal Regulator (IR)\u003c\/dd\u003e\n    \u003cdt\u003eClock Position\u003c\/dt\u003e\n\u003cdd\u003e12 o'clock\u003c\/dd\u003e\n    \u003cdt\u003eMounting\u003c\/dt\u003e\n\u003cdd\u003eEarth Return\u003c\/dd\u003e\n    \u003cdt\u003eTerminal Type\u003c\/dt\u003e\n\u003cdd\u003eB+ Terminal: M6-1.0\u003c\/dd\u003e\n    \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003e20.5cm x 18.5cm x 18.0cm (H x W x L)\u003c\/dd\u003e\n    \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e3.5 kg (7.7 lbs)\u003c\/dd\u003e\n    \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e12 months leisure use \/ 90 days commercial use\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003e5SI Unit Type\u003c\/dd\u003e\n  \u003c\/dl\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e1 x Alternator Assembly (8M0063970\/897755T) with integrated pulley\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n  \u003col\u003e\n    \u003cli\u003eDisconnect the battery terminals (negative first) to prevent electrical shorts.\u003c\/li\u003e\n    \u003cli\u003eLocate the belt tensioner, release the tension, and carefully slide the serpentine belt off the alternator pulley.\u003c\/li\u003e\n    \u003cli\u003eUnplug the main electrical harness and disconnect the battery charge wire from the B+ terminal on the back of the alternator.\u003c\/li\u003e\n    \u003cli\u003eRemove the upper and lower mounting bolts holding the old alternator in place and lift it out of the engine bay.\u003c\/li\u003e\n    \u003cli\u003ePosition the new alternator and loosely thread in the mounting bolts.\u003c\/li\u003e\n    \u003cli\u003eReconnect the electrical harness and the battery charge wire, ensuring a secure connection.\u003c\/li\u003e\n    \u003cli\u003eTighten the mounting bolts to the manufacturer's recommended torque specification.\u003c\/li\u003e\n    \u003cli\u003eReinstall the serpentine belt, ensuring it is correctly routed on all pulleys, then re-apply tension.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery terminals (positive first). Start the engine and verify the charging system is operating correctly.\u003c\/li\u003e\n  \u003c\/ol\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow can I confirm this alternator fits my specific Mercury outboard?\u003c\/summary\u003e\n    \u003cp\u003eThe best way is to cross-reference your old part number with the numbers in our Part Number Matrix. Also, check your engine’s model, horsepower, and year against our compatibility table. For many models, fitment is dependent on the engine serial number falling within the S\/N 1B366823 to 2B094995 range.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eMy engine is an 80ELPT Jet Optimax, which is a 2-stroke. Will this part still work?\u003c\/summary\u003e\n    \u003cp\u003eWhile this alternator is primarily specified for the 4-stroke EFI engine family, some sources indicate compatibility with the 2-stroke 80ELPT Jet Optimax (2009–2014). If you have this model, please visually compare your existing alternator and its connections to our product images and specifications to ensure a match before ordering.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat are common signs that my current alternator is failing?\u003c\/summary\u003e\n    \u003cp\u003eSymptoms include a battery warning light on your console, dimming lights, slow engine cranking, a whining or grinding noise from the engine, or a battery that frequently dies. You can also test the voltage at the battery with the engine running; it should be between 13.5 and 14.5 volts. A reading outside this range often indicates an alternator problem.\u003c\/p\u003e\n  \u003c\/details\u003e\n    \u003cdetails\u003e\n    \u003csummary\u003eHow often should a marine alternator be inspected or replaced?\u003c\/summary\u003e\n    \u003cp\u003eThere is no fixed replacement interval; it depends on usage and conditions. Inspect the belt at regular service intervals. Alternators in saltwater environments may have a shorter lifespan. Replace it when you notice any signs of failure to avoid being stranded with a dead battery.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the difference between this and an OEM part?\u003c\/summary\u003e\n    \u003cp\u003eThis listing is for an aftermarket replacement, not an original equipment manufacturer (OEM) part. It is built to meet or exceed OEM-level specifications using comparable materials. All our parts are manufactured in an ISO 9001 certified facility and are batch-inspected to ensure quality and consistency.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eHow fast do you ship and what does it cost?\u003c\/summary\u003e\n    \u003cp\u003eWe ship worldwide quickly, with a typical transit time of 5–15 days for most regions. Standard shipping is free. Expedited shipping options, if available for your location, will be presented at checkout.\u003c\/p\u003e\n  \u003c\/details\u003e\n  \u003cdetails\u003e\n    \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n    \u003cp\u003eThis part is covered by a 1-year warranty against manufacturing defects under normal leisure use (90 days for commercial use). If you experience an issue, please contact our support team with your order details. Returns are accepted within our standard window for unused parts in their original condition. See our full policy page or contact us for instructions.\u003c\/p\u003e\n  \u003c\/details\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n    \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e\n\u003csection\u003e\n  \u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n  \u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n  \u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50602602398011,"sku":"8M0063970","price":167.09,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/8M0063970_41a4c031-71e3-4975-bbef-108aa2f4cd72.jpg?v=1758594921"},{"product_id":"alternator-fits-mercury-marine-135-400-hp-verado-pro-racing-efi-outboards-replaces-892940t02","title":"Alternator – Fits Mercury Marine 135–400 HP Verado, Pro, Racing \u0026 EFI Outboards (Replaces 892940T02)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis aftermarket \u003cstrong\u003eAlternator – Fits Mercury Marine 135–400 HP Verado, Pro, Racing \u0026amp; EFI Outboards\u003c\/strong\u003e is designed for 4-stroke, 4 \u0026amp; 6-cylinder Verado, Pro, Racing, and EFI outboards from 2005 onwards. It delivers reliable 70 Amp, 12 Volt power to keep your vessel's electrical systems running smoothly.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for Mercury Marine 892940T, 892940T01, 892940T02; Sierra 18-5929; and other equivalents, ensuring broad compatibility and straightforward installation.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eEngineered for direct bolt-on installation.\u003c\/li\u003e\n\u003cli\u003eFeatures an S6 serpentine pulley and internal regulator.\u003c\/li\u003e\n\u003cli\u003eFully compatible with Mercury's SmartCraft digital technology.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e892940T\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e892940T01\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury Marine\u003c\/td\u003e\n        \u003ctd\u003e892940T02\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e18-5929\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eAftermarket\u003c\/td\u003e\n        \u003ctd\u003ePH300-0048\u003c\/td\u003e\n      \u003c\/tr\u003e\n       \u003ctr\u003e\n        \u003ctd\u003eDB Electrical\u003c\/td\u003e\n        \u003ctd\u003e400-12307\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis alternator is designed exclusively for the Mercury Marine engine models listed below. Please verify your engine's horsepower, model, and year before ordering.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated HP\u003c\/th\u003e\n        \u003cth\u003eStroke\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado\u003c\/td\u003e\n\u003ctd\u003e135\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2009\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado\u003c\/td\u003e\n\u003ctd\u003e150\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado\u003c\/td\u003e\n\u003ctd\u003e175\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2006–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado I-4\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2008–2011\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado I-6\u003c\/td\u003e\n\u003ctd\u003e200\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado\u003c\/td\u003e\n\u003ctd\u003e225\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL, XXL, CXXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL, XXL, CXXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado Pro\u003c\/td\u003e\n\u003ctd\u003e250\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2012–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado\u003c\/td\u003e\n\u003ctd\u003e275\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2005–2010\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL, XXL, CXXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2008–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL, XXL, CXXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado HD\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2012–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL, XXL, CXXL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado Pro\u003c\/td\u003e\n\u003ctd\u003e300\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2012–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL variants\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003eMercury Marine\u003c\/td\u003e\n\u003ctd\u003eVerado Racing\u003c\/td\u003e\n\u003ctd\u003e350\u003c\/td\u003e\n\u003ctd\u003e4-Stroke\u003c\/td\u003e\n\u003ctd\u003e2009–2014\u003c\/td\u003e\n\u003ctd\u003e892940T02\u003c\/td\u003e\n\u003ctd\u003eL, XL, CXL, XXL, CXXL DTS variants\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eAlternator\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect bolt-on replacement\u003c\/dd\u003e\n  \u003cdt\u003eOutput\u003c\/dt\u003e\n\u003cdd\u003e70 Amp, 12 Volt\u003c\/dd\u003e\n  \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\/Silver\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eHeight: 18.0cm, Width: 19.0cm, Length: 21.0cm\u003c\/dd\u003e\n  \u003cdt\u003eMounting Position\u003c\/dt\u003e\n\u003cdd\u003eStarboard side of engine\u003c\/dd\u003e\n  \u003cdt\u003eClock Position\u003c\/dt\u003e\n\u003cdd\u003e6 o'clock\u003c\/dd\u003e\n  \u003cdt\u003ePulley Type\u003c\/dt\u003e\n\u003cdd\u003eS6 (Serpentine, 6-rib)\u003c\/dd\u003e\n  \u003cdt\u003eRegulator Type\u003c\/dt\u003e\n\u003cdd\u003eInternal Regulator (IR)\u003c\/dd\u003e\n  \u003cdt\u003eFan Type\u003c\/dt\u003e\n\u003cdd\u003eInternal Fan (IF)\u003c\/dd\u003e\n  \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eCompatible with SmartCraft digital technology\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Alternator (892940T02)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the vessel's battery cables (negative first, then positive) to prevent electrical shorts.\u003c\/li\u003e\n  \u003cli\u003eLoosen the serpentine belt tensioner and remove the belt from the alternator pulley.\u003c\/li\u003e\n  \u003cli\u003eDisconnect the electrical connectors and remove the mounting bolts securing the old alternator.\u003c\/li\u003e\n  \u003cli\u003ePosition the new alternator, fasten the mounting bolts to the manufacturer's specified torque, and reconnect the electrical harnesses.\u003c\/li\u003e\n  \u003cli\u003eReinstall the serpentine belt, ensuring it is properly tensioned. Reconnect the battery (positive first, then negative) and start the engine to verify correct charging operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\u003csummary\u003eHow do I confirm this alternator fits my Verado engine?\u003c\/summary\u003e\u003cp\u003eThe best way is to check the part number on your existing alternator. If it matches any of the numbers in our Part Number Matrix (e.g., 892940T02), it will fit. You can also use our Engine \u0026amp; Model Compatibility table to verify by your engine's model and year.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat are the signs of a failing alternator on my outboard?\u003c\/summary\u003e\u003cp\u003eCommon symptoms include a battery that won't stay charged, dimming lights a low voltage alarm or fault code on your SmartCraft gauges, and sometimes a grinding or whining noise coming from the alternator itself.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eIs this a direct bolt-on replacement?\u003c\/summary\u003e\u003cp\u003eYes, this unit is designed to be a direct, bolt-on replacement for the original OEM alternator. It uses the same mounting points and electrical connections, requiring no modifications for installation.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat is the difference between this aftermarket alternator and the OEM Mercury part?\u003c\/summary\u003e\u003cp\u003eFunctionally, there is no difference. Our aftermarket alternator is built to meet or exceed OEM specifications for fit, form, and function, including output (70A\/12V) and SmartCraft compatibility. The primary difference is the price point and the brand name.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eMy SmartCraft system is showing a charging fault. Could the alternator be the issue?\u003c\/summary\u003e\u003cp\u003eYes, a charging system fault on your SmartCraft display often points directly to a failing or failed alternator. You should have the battery and charging system professionally tested to confirm the alternator is the root cause before replacing it.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWhat maintenance does this alternator require?\u003c\/summary\u003e\u003cp\u003eMarine alternators are generally maintenance-free. The most important factor is keeping the serpentine belt in good condition and properly tensioned. Regularly inspect the belt for cracks, fraying, or glazing.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eShipping speed \u0026amp; cost\u003c\/summary\u003e\u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\u003c\/details\u003e\n\u003cdetails\u003e\u003csummary\u003eWarranty \u0026amp; returns\u003c\/summary\u003e\u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePro-Grade Standards\u003c\/strong\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eFast Global Fulfillment\u003c\/strong\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eManufacturer-Direct Value\u003c\/strong\u003e — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50602602430779,"sku":"892940T02","price":297.0,"currency_code":"USD","in_stock":false}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/892940T02_8e5ed2c4-0e8e-4a5e-bfd0-1fb5f8a9f8dc.jpg?v=1758594922"}],"url":"https:\/\/seasierra.com\/collections\/alternators-1.oembed","provider":"SeaSierra","version":"1.0","type":"link"}