{"product_id":"water-pump-oil-seal-fits-yamaha-115-300hp-outboards-replaces-93101-28m16-00","title":"Water Pump Oil Seal – Fits Yamaha 115-300HP Outboards (Replaces 93101-28M16-00)","description":"\u003ch2\u003eWater Pump Oil Seal – Fits Yamaha 115-300HP Outboards (Replaces 93101-28M16-00)\u003c\/h2\u003e\n\u003cp\u003eThis water pump oil seal is designed for a wide range of Yamaha 2-stroke and 4-stroke outboard engines, from 115HP to 300HP, manufactured from 1984 to the present. It serves as a crucial component for preventing water from entering the gearcase.\u003c\/p\u003e\n\u003cp\u003eThis aftermarket seal is a direct replacement for multiple OEM and other aftermarket part numbers, including Sierra 18-0265, Mallory 9-76412, Mallory 9-76421, and Yamaha 93101-28M16-00, 93101-28018, and 93101-028019.\u003c\/p\u003e\n\u003cul\u003e\n    \u003cli\u003eInstallation Method: Requires a \u003cstrong\u003estacked (back-to-back) installation\u003c\/strong\u003e of two seals.\u003c\/li\u003e\n    \u003cli\u003ePackage Includes: Two identical oil seals for a complete replacement.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\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\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003e93101-28M16-00\u003c\/strong\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003e93101-28018\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003e93101-028019\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eSierra\u003c\/td\u003e\n            \u003ctd\u003e18-0265\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eMallory\u003c\/td\u003e\n            \u003ctd\u003e9-76412\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n             \u003ctd\u003eMallory\u003c\/td\u003e\n             \u003ctd\u003e9-76421\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below. For Yamaha owners, here’s a guide to help you identify your engine’s serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/yamaha-outboard-serial-number-guide-2025\" rel=\"nofollow noopener\" target=\"_blank\"\u003eYamaha Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/yamaha-outboard-parts-diagrams-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eYamaha Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable\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\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eVarious V4\/V6\u003c\/td\u003e\n            \u003ctd\u003e115-130\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1984+\u003c\/td\u003e\n            \u003ctd\u003e93101-28M16-00\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eVarious V4\/V6\u003c\/td\u003e\n            \u003ctd\u003e150-175\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1984+\u003c\/td\u003e\n            \u003ctd\u003e93101-28M16-00\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eVarious V4\/V6\u003c\/td\u003e\n            \u003ctd\u003e200-225\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1984+\u003c\/td\u003e\n            \u003ctd\u003e93101-28M16-00\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eVarious V4\/V6\u003c\/td\u003e\n            \u003ctd\u003e250-300\u003c\/td\u003e\n            \u003ctd\u003e2-Stroke\u003c\/td\u003e\n            \u003ctd\u003e1984+\u003c\/td\u003e\n            \u003ctd\u003e93101-28M16-00\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eF115\u003c\/td\u003e\n            \u003ctd\u003e115\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e2000+\u003c\/td\u003e\n            \u003ctd\u003e93101-28M16-00\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eF150-F200\u003c\/td\u003e\n            \u003ctd\u003e150-200\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e2000+\u003c\/td\u003e\n            \u003ctd\u003e93101-28M16-00\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eF225-F300\u003c\/td\u003e\n            \u003ctd\u003e225-300\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e2000+\u003c\/td\u003e\n            \u003ctd\u003e93101-28M16-00\u003c\/td\u003e\n            \u003ctd\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eYamaha\u003c\/td\u003e\n            \u003ctd\u003eVF115-VF250\u003c\/td\u003e\n            \u003ctd\u003e115-250\u003c\/td\u003e\n            \u003ctd\u003e4-Stroke\u003c\/td\u003e\n            \u003ctd\u003e2000+\u003c\/td\u003e\n            \u003ctd\u003e93101-28M16-00\u003c\/td\u003e\n            \u003ctd\u003eSHO\/VMAX Series\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable\u003e\n    \u003cthead\u003e\n        \u003ctr\u003e\n            \u003cth\u003eSpecification\u003c\/th\u003e\n            \u003cth\u003eValue\u003c\/th\u003e\n        \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eProduct Type\u003c\/td\u003e\n            \u003ctd\u003eWater Pump Oil Seal\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eInstallation\u003c\/td\u003e\n            \u003ctd\u003eStacked (two seals)\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eDimensions\u003c\/td\u003e\n            \u003ctd\u003e\u003cstrong\u003eI.D. 27mm, O.D. 43.25mm, Width 7mm\u003c\/strong\u003e\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHousing Material\u003c\/td\u003e\n            \u003ctd\u003eRubber\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eHousing Color\u003c\/td\u003e\n            \u003ctd\u003eBlack\u003c\/td\u003e\n        \u003c\/tr\u003e\n        \u003ctr\u003e\n            \u003ctd\u003eOther Technical Attributes\u003c\/td\u003e\n            \u003ctd\u003eS-Type oil seal designed for water pump application\u003c\/td\u003e\n        \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e2 x Water Pump Oil Seals (replaces 93101-28M16-00)\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\u003col\u003e\n    \u003cli\u003eDisconnect the battery and remove the engine's lower unit (gearcase).\u003c\/li\u003e\n    \u003cli\u003eUnbolt and remove the water pump housing to access the pump base.\u003c\/li\u003e\n    \u003cli\u003eCarefully pry out the two old oil seals from the pump base, noting their orientation.\u003c\/li\u003e\n    \u003cli\u003eThoroughly clean the seal seating area inside the housing to remove any old sealant or corrosion.\u003c\/li\u003e\n    \u003cli\u003eApply a thin layer of marine grease to the inner and outer surfaces of the new seals.\u003c\/li\u003e\n    \u003cli\u003ePress the first seal into the housing. Then, press the second seal in on top of it, in a \u003cstrong\u003eback-to-back (stacked) orientation\u003c\/strong\u003e.\u003c\/li\u003e\n    \u003cli\u003eEnsure both seals are seated evenly and squarely in the housing.\u003c\/li\u003e\n    \u003cli\u003eReassemble the water pump components and reinstall the lower unit.\u003c\/li\u003e\n    \u003cli\u003eReconnect the battery and test the engine on a water supply to check for leaks.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cp\u003e\u003cstrong\u003eHow can I be sure this oil seal fits my specific Yamaha engine?\u003c\/strong\u003e\u003cbr\u003e\nThis seal fits a wide range of Yamaha V4\/V6 and F-series engines from 1984 to the present. Please review the 'Compatible Engine Models' table and cross-reference your engine's model and year. Verifying the OEM part number \u003cstrong\u003e93101-28M16-00\u003c\/strong\u003e against your service manual is the most reliable confirmation method.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhy are there two seals included, and how are they installed?\u003c\/strong\u003e\u003cbr\u003e\nThese Yamaha engines use a stacked seal design for the water pump driveshaft. The two seals are installed back-to-back in the water pump base to provide a robust seal against both water intrusion from the outside and gearcase oil loss from the inside. Ensure they are correctly oriented and lubricated during installation.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat are the symptoms of a failed water pump oil seal?\u003c\/strong\u003e\u003cbr\u003e\nCommon signs include water in your gearcase oil (which will look milky or cloudy), a visible gear lube leak from the lower unit's weep hole, or recurrent water pump impeller failure due to contamination from the gear lube.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eOEM vs. Aftermarket?\u003c\/strong\u003e\u003cbr\u003e\nThis listing is an aftermarket replacement part (not an OEM component). We build to OEM specifications using comparable-grade materials. Production is done in an ISO9002-certified facility, and each batch is inspected for consistent performance.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eHow fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nWe offer fast global shipping—typically 5–15 days worldwide—and standard shipping is free. Expedited options are available at checkout depending on your location.\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003eWhat is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nThis product includes a 1-year warranty against manufacturing defects under normal use. If something goes wrong, contact our support team with your order details. Returns are accepted within our standard return window (unused \u0026amp; in original condition); please see our policy page or reach out for instructions.\u003c\/p\u003e\n\n\u003ch2\u003eImportant Notes\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003eVerify that the product images and specifications match your original part. If discrepancies exist—even if your model is listed—do not proceed with the purchase.\u003c\/li\u003e\n    \u003cli\u003eThis product is an aftermarket replacement part and is not an OEM component.\u003c\/li\u003e\n    \u003cli\u003eProfessional installation is recommended to ensure safety and optimal performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eWhy Choose JLM MARINE?\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e\n\u003cstrong\u003eQuality Assured:\u003c\/strong\u003e As a trusted manufacturer for over 20 years, we supply top marine brands globally.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eFast Global Shipping:\u003c\/strong\u003e Free delivery worldwide in 5–15 days.\u003c\/li\u003e\n    \u003cli\u003e\n\u003cstrong\u003eDirect from Manufacturer:\u003c\/strong\u003e Competitive pricing without compromising quality.\u003c\/li\u003e\n\u003c\/ul\u003e","brand":"JLM Marine","offers":[{"title":"Default Title","offer_id":51313351885113,"sku":"KF2808 x 2","price":22.89,"currency_code":"USD","in_stock":true}],"url":"https:\/\/jlmmarine.com\/ru\/products\/water-pump-oil-seal-fits-yamaha-115-300hp-outboards-replaces-93101-28m16-00","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}