{"product_id":"gear-lube-monitor-bottle-reservoir-fits-mercruiser-alpha-gen-2-bravo-replaces-806193a20-19742a1-806193a48","title":"Gear Lube Monitor Bottle Reservoir – Fits MerCruiser Alpha Gen 2 \u0026 Bravo (Replaces 806193A20, 19742A1, 806193A48)","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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eGear Lube Monitor Bottle Reservoir\u003c\/strong\u003e is engineered for MerCruiser Alpha Gen 2 and Bravo sterndrive models from 1988 to 1997. Designed as a direct aftermarket replacement for OEM part 806193A20, this complete reservoir kit ensures reliable gear lube monitoring and proper fluid levels for your sterndrive system.\u003c\/p\u003e\n\u003cp\u003eThis kit directly replaces Mercury MerCruiser part numbers 806193A20, 19742A1, and 806193A48, offering cross-platform compatibility across multiple model years.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eComplete assembly with float switch, mounting bracket, strap, and all necessary hardware\u003c\/li\u003e\n  \u003cli\u003eDirect bolt-on installation for Alpha Gen 2 and Bravo sterndrives\u003c\/li\u003e\n  \u003cli\u003eCompatible with standard marine gear lubricants\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        \u003cth\u003eNotes\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\u003e806193A20\u003c\/td\u003e\n        \u003ctd\u003ePrimary OEM reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e19742A1\u003c\/td\u003e\n        \u003ctd\u003eSuperseded reference\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n        \u003ctd\u003e806193A48\u003c\/td\u003e\n        \u003ctd\u003eKit variant\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\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\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\u003eAlpha Gen 2\u003c\/td\u003e\n        \u003ctd\u003e1988–1997\u003c\/td\u003e\n        \u003ctd\u003e806193A20, 19742A1, 806193A48\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eMerCruiser\u003c\/td\u003e\n        \u003ctd\u003eBravo\u003c\/td\u003e\n        \u003ctd\u003e1988–1997\u003c\/td\u003e\n        \u003ctd\u003e806193A20, 19742A1, 806193A48\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\u003eApplication\u003c\/dt\u003e\n  \u003cdd\u003eGear lube monitoring reservoir\u003c\/dd\u003e\n  \u003cdt\u003eFitment\u003c\/dt\u003e\n  \u003cdd\u003eMerCruiser Alpha Gen 2 \u0026amp; Bravo sterndrives\u003c\/dd\u003e\n  \u003cdt\u003eConfiguration\u003c\/dt\u003e\n  \u003cdd\u003eComplete kit with float switch assembly\u003c\/dd\u003e\n  \u003cdt\u003eMounting\u003c\/dt\u003e\n  \u003cdd\u003eIncludes bracket, strap, and hardware\u003c\/dd\u003e\n  \u003cdt\u003eCompatibility\u003c\/dt\u003e\n  \u003cdd\u003eDirect OE aftermarket replacement\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat's in the Box\u003c\/h2\u003e\n\u003cp\u003eThis kit includes everything needed for a complete installation:\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReservoir bottle\u003c\/li\u003e\n  \u003cli\u003eFloat switch\u003c\/li\u003e\n  \u003cli\u003eMounting bracket\u003c\/li\u003e\n  \u003cli\u003eMounting strap\u003c\/li\u003e\n  \u003cli\u003eInstallation hardware\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect battery negative terminal before beginning work.\u003c\/li\u003e\n  \u003cli\u003eDrain existing gear lube from the sterndrive unit per manufacturer service procedures.\u003c\/li\u003e\n  \u003cli\u003eRemove the old reservoir assembly by disconnecting the float switch wiring harness and loosening mounting hardware.\u003c\/li\u003e\n  \u003cli\u003ePosition the new reservoir using the supplied bracket and strap. Align mounting holes with existing transom or engine bay mount points.\u003c\/li\u003e\n  \u003cli\u003eSecure the bracket and strap with provided hardware, ensuring the reservoir is level and firmly mounted.\u003c\/li\u003e\n  \u003cli\u003eConnect the float switch wiring harness to the boat's electrical system, matching wire colors or terminal positions.\u003c\/li\u003e\n  \u003cli\u003eAttach the gear lube supply line from the sterndrive to the reservoir inlet port.\u003c\/li\u003e\n  \u003cli\u003eRefill the sterndrive with recommended marine gear lubricant, monitoring reservoir fill level through the sight window.\u003c\/li\u003e\n  \u003cli\u003eReconnect battery and test float switch operation by observing warning light or gauge response.\u003c\/li\u003e\n  \u003cli\u003eRun engine at idle and inspect for leaks at all connections. Top off reservoir as needed.\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 reservoir needs replacement?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include cracks or discoloration in the bottle, a non-functional float switch (no low-lube warning), persistent leaks at fittings, or cloudy\/contaminated fluid inside the reservoir indicating seal failure.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWill this fit both Alpha Gen 2 and Bravo drives?\u003c\/summary\u003e\n  \u003cp\u003eYes, this kit is designed to fit both MerCruiser Alpha Gen 2 and Bravo sterndrive models manufactured between 1988 and 1997. Always verify your drive model and part number before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eCan I reuse my old bracket and hardware?\u003c\/summary\u003e\n  \u003cp\u003eWhile the kit includes new bracket, strap, and hardware, you may reuse existing components if they are in good condition and compatible. Inspect for corrosion, cracks, or stripped threads before reusing.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat type of gear lube should I use?\u003c\/summary\u003e\n  \u003cp\u003eUse high-quality marine sterndrive gear lubricant that meets MerCruiser specifications for your drive model. Consult your owner's manual for viscosity and additive requirements.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should the reservoir be inspected?\u003c\/summary\u003e\n  \u003cp\u003eInspect the reservoir and fluid level before each outing and during routine sterndrive service intervals (typically every 50–100 hours or annually). Replace if cracks, leaks, or float malfunction are detected.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eDoes the float switch require calibration?\u003c\/summary\u003e\n  \u003cp\u003eNo, the float switch is pre-calibrated and activates automatically when fluid levels drop below the safe threshold. Simply connect the wiring harness per installation instructions.\u003c\/p\u003e\n\u003c\/details\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":51025604051259,"sku":"21LM001","price":62.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/31YG0pl8cEL._SL250.jpg?v=1772927982","url":"https:\/\/seasierra.com\/products\/gear-lube-monitor-bottle-reservoir-fits-mercruiser-alpha-gen-2-bravo-replaces-806193a20-19742a1-806193a48","provider":"SeaSierra","version":"1.0","type":"link"}