{"product_id":"2895-321480-318973-oil-seal-for-omc-jlm-marine","title":"2895 321480 318973 Oil Seal for OMC | JLM Marine","description":"\u003ch2\u003eOil Seal for OMC Gearcase – OEM Quality Aftermarket Replacement\u003c\/h2\u003e\n\n\u003cp\u003eThis high-quality gearcase oil seal is engineered to fit OMC marine engines, ensuring reliable sealing performance and protection against fluid leakage. Manufactured to OEM specifications, this aftermarket replacement delivers dependable service for your lower unit maintenance needs.\u003c\/p\u003e\n\n\u003cp\u003eThis seal directly replaces OMC part numbers \u003cstrong\u003e318973\u003c\/strong\u003e, \u003cstrong\u003e321480\u003c\/strong\u003e, and \u003cstrong\u003e0777541\u003c\/strong\u003e, as well as Sierra \u003cstrong\u003e18-2028\u003c\/strong\u003e, GLM \u003cstrong\u003e86170\u003c\/strong\u003e, and Mallory \u003cstrong\u003e9-76207\u003c\/strong\u003e. It is designed for straightforward installation in OMC gearcase assemblies.\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003ePrecision-molded for secure fit and long-lasting seal integrity\u003c\/li\u003e\n\u003cli\u003eCompatible with OMC lower unit assemblies\u003c\/li\u003e\n\u003cli\u003eSingle oil seal included per package\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\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\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\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e318973\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e321480\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e0318973\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003e0777541\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eSierra\u003c\/td\u003e\n\u003ctd\u003e18-2028\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eGLM\u003c\/td\u003e\n\u003ctd\u003e86170\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eMallory\u003c\/td\u003e\n\u003ctd\u003e9-76207\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\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\n\u003cdiv style=\"overflow-x:auto;\"\u003e\n\u003ctable border=\"1\" cellpadding=\"8\" cellspacing=\"0\" style=\"border-collapse:collapse; width:100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\u003e\n\u003cth\u003eBrand\u003c\/th\u003e\n\u003cth\u003eApplication\u003c\/th\u003e\n\u003c\/tr\u003e\n\u003c\/thead\u003e\n\u003ctbody\u003e\n\u003ctr\u003e\n\u003ctd\u003eOMC\u003c\/td\u003e\n\u003ctd\u003eGearcase Oil Seal For OMC Marine Engine\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=\"border-collapse:collapse; width:100%;\"\u003e\n\u003cthead\u003e\n\u003ctr style=\"background-color:#f2f2f2;\"\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\u003ePart Type\u003c\/td\u003e\n\u003ctd\u003eGearcase Oil Seal\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eApplication\u003c\/td\u003e\n\u003ctd\u003eOMC Marine Engine Lower Unit\u003c\/td\u003e\n\u003c\/tr\u003e\n\u003ctr\u003e\n\u003ctd\u003eQuality Grade\u003c\/td\u003e\n\u003ctd\u003eOEM Quality Aftermarket\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\u003eYour order includes:\u003c\/p\u003e\n\n\u003cul\u003e\n\u003cli\u003e\u003cspan style=\"color:red;\"\u003e\u003cstrong\u003e1 × Oil Seal\u003c\/strong\u003e\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Guide\u003c\/h2\u003e\n\n\u003col\u003e\n\u003cli\u003eDrain all gear oil from the lower unit and clean the gearcase housing thoroughly. Remove the old oil seal carefully using a seal puller or flat tool, taking care not to damage the seal bore.\u003c\/li\u003e\n\u003cli\u003eInspect the seal bore and propeller shaft for scratches, burrs, or corrosion that could compromise the new seal. Clean and smooth surfaces as needed.\u003c\/li\u003e\n\u003cli\u003eLightly coat the new oil seal lip and outer diameter with marine-grade gear oil. Ensure the seal is oriented correctly with the lip facing inward toward the gearcase.\u003c\/li\u003e\n\u003cli\u003eUse a seal driver or appropriately sized socket to press the seal squarely into the bore until it seats flush. Avoid cocking or tilting during installation.\u003c\/li\u003e\n\u003cli\u003eReinstall the propeller shaft and related components per your engine's service manual. Refill the lower unit with the manufacturer-recommended gear oil to proper level.\u003c\/li\u003e\n\u003cli\u003eCheck for leaks after reassembly and during initial operation. If seepage occurs, verify seal installation and inspect for housing damage.\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 oil seal fits my OMC engine?\u003c\/strong\u003e\u003cbr\u003e\nA: Cross-reference your original part number with the table above. If your current seal matches OMC 318973, 321480, 0777541, Sierra 18-2028, GLM 86170, or Mallory 9-76207, this replacement will fit. Always verify dimensions visually before installation.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What are the signs that my gearcase oil seal needs replacement?\u003c\/strong\u003e\u003cbr\u003e\nA: Common symptoms include visible gear oil leaking from the propeller shaft area, milky or contaminated gear oil (indicating water intrusion), or low gear oil levels between services. Replace the seal immediately if any leakage is detected to prevent lower unit damage.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: How often should I replace the gearcase oil seal?\u003c\/strong\u003e\u003cbr\u003e\nA: Replace the seal whenever you service the lower unit, notice leakage, or during propeller shaft removal. Inspect the seal during every seasonal maintenance or after every 100 hours of operation, and replace if wear or hardening is evident.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: Can I reuse the old seal if it looks intact?\u003c\/strong\u003e\u003cbr\u003e\nA: No, oil seals are single-use components. Even if visually intact, the seal lip loses elasticity and sealing capability once removed. Always install a new seal during reassembly to ensure proper protection.\u003c\/p\u003e\n\n\u003cp\u003e\u003cstrong\u003eQ: What is the difference between this aftermarket seal and the OEM version?\u003c\/strong\u003e\u003cbr\u003e\nA: This is an aftermarket replacement part, not an OEM component. We manufacture 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":51983453159737,"sku":"2895","price":21.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0885\/0433\/6697\/files\/3483605_1730083083074.webp?v=1772505129","url":"https:\/\/jlmmarine.com\/es\/products\/2895-321480-318973-oil-seal-for-omc-jlm-marine","provider":"JLM Marine Boat Parts Limited","version":"1.0","type":"link"}