{"product_id":"26-76868a04-lower-gear-case-seal-kit-for-mercruiser-bravo-i-ii-iii-x-jlm-marine","title":"26-76868A04 Lower Gear Case Seal Kit for MerCruiser Bravo I II III X | JLM Marine","description":"\u003ch2\u003eLower Gear Case Seal Kit for MerCruiser Bravo I II III X | 26-76868A04\u003c\/h2\u003e\n\n\u003cp\u003eThis comprehensive lower gear case seal kit is engineered for MerCruiser Bravo series stern drives, including \u003cstrong\u003eBravo I, II, III, and X models\u003c\/strong\u003e from 1988 to 2013. Designed to restore proper sealing in your lower unit gearcase, this kit provides all essential O-rings and seals needed for professional-grade repairs and maintenance.\u003c\/p\u003e\n\n\u003cp\u003eThis aftermarket replacement directly cross-references \u003cstrong\u003eMercury MerCruiser 26-76868A04, 26-76868A1, 26-76868A2\u003c\/strong\u003e, \u003cstrong\u003eOMC\/Johnson\/Evinrude 0508970\u003c\/strong\u003e, and \u003cstrong\u003eSierra 18-2645-1\u003c\/strong\u003e, ensuring broad compatibility across multiple part numbering systems.\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eComplete seal and O-ring set for lower unit gearcase repair\u003c\/li\u003e\n  \u003cli\u003eFits Bravo One, Two, Three, and X series stern drives\u003c\/li\u003e\n  \u003cli\u003eIncludes driver repair installer components for proper seal installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Cross-Reference\u003c\/h2\u003e\n\n\u003cp\u003eUse this table to confirm equivalent part numbers across OEM and aftermarket brands.\u003c\/p\u003e\n\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%; border-collapse:collapse;\"\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\u003e26-76868A04\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n      \u003ctd\u003e26-76868A1\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eMercury MerCruiser\u003c\/td\u003e\n      \u003ctd\u003e26-76868A2\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eOMC\/Johnson\/Evinrude\u003c\/td\u003e\n      \u003ctd\u003e0508970\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eSierra\u003c\/td\u003e\n      \u003ctd\u003e18-2645-1\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003eCompatible Engine Models\u003c\/h2\u003e\n\n\u003cp\u003eConfirm your engine model\/year in the table below. For Mercury owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/mercury-outboard-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Serial Number Guide\u003c\/a\u003e. You can also review exploded diagrams to verify part numbers: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/diagrams\/mercury-parts-catalog\" rel=\"nofollow noopener\" target=\"_blank\"\u003eMercury Parts Diagrams \u0026amp; Catalog\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cp\u003eFor Johnson\/Evinrude owners, here's a guide to help you identify your engine's serial\/model: \u003ca href=\"https:\/\/jlmmarine.com\/blogs\/serial-number-guide\/johnson-serial-number-guide\" rel=\"nofollow noopener\" target=\"_blank\"\u003eJohnson\/Evinrude Serial Number Guide\u003c\/a\u003e.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%; border-collapse:collapse;\"\u003e\n  \u003cthead\u003e\n    \u003ctr\u003e\n      \u003cth\u003eModel\u003c\/th\u003e\n      \u003cth\u003eYears\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO ONE\u003c\/td\u003e\n      \u003ctd\u003e1988-1998\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO TWO\u003c\/td\u003e\n      \u003ctd\u003e1988-1998\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO THREE\u003c\/td\u003e\n      \u003ctd\u003e1988-1998\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO XR ONE\u003c\/td\u003e\n      \u003ctd\u003e1998, 2002, 2004, 2006, 2007, 2009\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO XR THREE\u003c\/td\u003e\n      \u003ctd\u003e1998, 2002, 2004, 2006, 2007, 2009\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO XR SPORTMASTER\u003c\/td\u003e\n      \u003ctd\u003e1998, 2002, 2004, 2006, 2007, 2009\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO XR SPORT\u003c\/td\u003e\n      \u003ctd\u003eVarious\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO X ONE\u003c\/td\u003e\n      \u003ctd\u003e1998, 2013\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO X TWO\u003c\/td\u003e\n      \u003ctd\u003e1998, 2013\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eBRAVO X THREE\u003c\/td\u003e\n      \u003ctd\u003e1998, 2013\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\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"width:100%; border-collapse:collapse;\"\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\u003eOEM Number\u003c\/td\u003e\n      \u003ctd\u003e26-76868A04\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eApplication\u003c\/td\u003e\n      \u003ctd\u003eLower Unit Gearcase Seal \u0026amp; O-Ring Repair\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr\u003e\n      \u003ctd\u003eKit Type\u003c\/td\u003e\n      \u003ctd\u003eComplete Seal Kit with Driver\/Installer Tools\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003ch2\u003ePackage Contents\u003c\/h2\u003e\n\n\u003cp\u003eThis kit includes:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003e\n\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e1 × Lower Unit Seal Kit\u003c\/strong\u003e\u003c\/span\u003e (all parts as shown in product images)\u003c\/li\u003e\n  \u003cli\u003eComplete set of O-rings and seals for lower gearcase\u003c\/li\u003e\n  \u003cli\u003eDriver repair installer tools for proper seal installation\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and remove the stern drive unit from the boat following manufacturer service manual procedures.\u003c\/li\u003e\n  \u003cli\u003eDrain all gear oil from the lower unit and clean the exterior surfaces thoroughly.\u003c\/li\u003e\n  \u003cli\u003eSeparate the lower gearcase from the upper housing, taking care to note the orientation of all components.\u003c\/li\u003e\n  \u003cli\u003eRemove the old seals and O-rings from their grooves, inspecting all seal surfaces for damage or corrosion.\u003c\/li\u003e\n  \u003cli\u003eClean all seal mating surfaces with a suitable solvent and dry completely.\u003c\/li\u003e\n  \u003cli\u003eLightly lubricate new seals and O-rings with marine-grade grease before installation.\u003c\/li\u003e\n  \u003cli\u003eUse the provided installer tools to seat each seal evenly without twisting or pinching.\u003c\/li\u003e\n  \u003cli\u003eVerify that all O-rings are properly seated in their grooves and not twisted.\u003c\/li\u003e\n  \u003cli\u003eReassemble the lower unit to the upper housing, ensuring proper alignment and torque specifications per service manual.\u003c\/li\u003e\n  \u003cli\u003eRefill the gearcase with the manufacturer-recommended gear oil to the proper level.\u003c\/li\u003e\n  \u003cli\u003eReinstall the stern drive unit onto the boat and reconnect all hardware securely.\u003c\/li\u003e\n  \u003cli\u003eTest the drive in water and check for leaks before resuming normal operation.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How do I confirm this seal kit fits my Bravo drive?\u003c\/strong\u003e\u003cbr\u003e\nA: Check the compatibility table above for your specific Bravo model and year. Verify your stern drive's model designation (stamped on the unit) matches one of the listed applications. If uncertain, cross-reference the OEM part number 26-76868A04 in your service manual or parts diagram.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my lower unit seals need replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include visible gear oil leaks around the lower unit, water contamination in the gear oil (milky appearance), difficulty shifting gears, or unusual noise from the gearcase. Regular inspection during oil changes can catch seal deterioration early.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the lower unit seals?\u003c\/strong\u003e\u003cbr\u003e\nA: Replace seals whenever you service the lower unit, typically every 2-3 years or 200 hours of operation, or immediately if you notice leaks or water intrusion. Always install new seals when rebuilding or reassembling the gearcase.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Do I need special tools to install these seals properly?\u003c\/strong\u003e\u003cbr\u003e\nA: Yes, this kit includes driver and installer tools designed to seat seals evenly without damage. Using the proper tools prevents seal distortion, pinching, or improper seating that can cause premature failure.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I reuse old seals if they look okay?\u003c\/strong\u003e\u003cbr\u003e\nA: No, always replace seals during any lower unit service. Even seals that appear intact lose elasticity and sealing capability over time, and reusing them risks water intrusion and costly damage to internal gears and bearings.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What's the difference between OEM and aftermarket seal kits?\u003c\/strong\u003e\u003cbr\u003e\nA: This 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\n\u003cp\u003e\u003cstrong\u003eQ: How fast do you ship and how much does it cost?\u003c\/strong\u003e\u003cbr\u003e\nA: We 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\n\u003cp\u003e\u003cstrong\u003eQ: What is your warranty and return policy?\u003c\/strong\u003e\u003cbr\u003e\nA: This 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\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\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":51981034357049,"sku":"24SK044","price":47.49,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/12_682e7249-6935-4752-ad3f-8b0ec1c87450.png?v=1772447131","url":"https:\/\/jlmmarine.com\/products\/26-76868a04-lower-gear-case-seal-kit-for-mercruiser-bravo-i-ii-iii-x-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}