{"product_id":"lower-unit-seal-kit-fits-johnson-evinrude-85-140-hp-v4-outboards-replaces-18-2692","title":"Lower Unit Seal Kit – Fits Johnson\/Evinrude 85-140 HP V4 Outboards (Replaces 18-2692)","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 comprehensive \u003cstrong\u003eLower Unit Seal Kit\u003c\/strong\u003e is designed for Johnson\/Evinrude 85-140 HP V4 outboard engines manufactured between 1973 and 1983. It provides all the essential seals and gaskets needed to service and reseal the lower unit gearcase, preventing water intrusion and oil leaks to restore optimal performance.\u003c\/p\u003e\n    \u003cp\u003eThis kit directly replaces Sierra 18-2692, GLM 86712, Mallory 9-74113, and Soxa-Marine 18-2692, offering a reliable, direct-fit alternative to OEM parts.\u003c\/p\u003e\n    \u003cul\u003e\n        \u003cli\u003e\n\u003cstrong\u003eInstallation:\u003c\/strong\u003e Suitable for both DIY mechanics and professional technicians.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eComplete Kit:\u003c\/strong\u003e Includes all necessary gaskets, O-rings, and oil seals for a full lower unit service.\u003c\/li\u003e\n        \u003cli\u003e\n\u003cstrong\u003eDurability:\u003c\/strong\u003e Made from high-quality rubber and synthetic materials to withstand the harsh marine environment.\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 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                \u003c\/tr\u003e\n            \u003c\/thead\u003e\n            \u003ctbody\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eSierra\u003c\/td\u003e\n                    \u003ctd\u003e18-2692\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eGLM\u003c\/td\u003e\n                    \u003ctd\u003e86712\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eMallory\u003c\/td\u003e\n                    \u003ctd\u003e9-74113\u003c\/td\u003e\n                \u003c\/tr\u003e\n                 \u003ctr\u003e\n                    \u003ctd\u003eSoxa-Marine\u003c\/td\u003e\n                    \u003ctd\u003e18-2692\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 and year in the table below.\u003c\/p\u003e\n    \u003cp\u003eThis seal kit is specifically for the Johnson\/Evinrude outboard models listed.\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\u003eJohnson\/Evinrude\u003c\/td\u003e\n                    \u003ctd\u003eV4\u003c\/td\u003e\n                    \u003ctd\u003e85\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1973–1980\u003c\/td\u003e\n                    \u003ctd\u003e18-2692\u003c\/td\u003e\n                    \u003ctd\u003e\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                    \u003ctd\u003eV4\u003c\/td\u003e\n                    \u003ctd\u003e90\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1981–1983\u003c\/td\u003e\n                    \u003ctd\u003e18-2692\u003c\/td\u003e\n                    \u003ctd\u003e\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                    \u003ctd\u003eV4\u003c\/td\u003e\n                    \u003ctd\u003e100\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1979–1980\u003c\/td\u003e\n                    \u003ctd\u003e18-2692\u003c\/td\u003e\n                    \u003ctd\u003e\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                    \u003ctd\u003eV4\u003c\/td\u003e\n                    \u003ctd\u003e115\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1973–1983\u003c\/td\u003e\n                    \u003ctd\u003e18-2692\u003c\/td\u003e\n                    \u003ctd\u003e\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                    \u003ctd\u003eV4\u003c\/td\u003e\n                    \u003ctd\u003e135\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1973–1976\u003c\/td\u003e\n                    \u003ctd\u003e18-2692\u003c\/td\u003e\n                    \u003ctd\u003e\u003c\/td\u003e\n                \u003c\/tr\u003e\n                \u003ctr\u003e\n                    \u003ctd\u003eJohnson\/Evinrude\u003c\/td\u003e\n                    \u003ctd\u003eV4\u003c\/td\u003e\n                    \u003ctd\u003e140\u003c\/td\u003e\n                    \u003ctd\u003e2-Stroke\u003c\/td\u003e\n                    \u003ctd\u003e1977–1983\u003c\/td\u003e\n                    \u003ctd\u003e18-2692\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\u003eLower Unit Gearcase Seal Kit\u003c\/dd\u003e\n        \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDIY or Professional\u003c\/dd\u003e\n        \u003cdt\u003eComponents\u003c\/dt\u003e\n\u003cdd\u003eGaskets, O-rings, Oil Seals, Washers\u003c\/dd\u003e\n        \u003cdt\u003eApplication\u003c\/dt\u003e\n\u003cdd\u003eV4 Outboard Gearcase\u003c\/dd\u003e\n        \u003cdt\u003eMaterial\u003c\/dt\u003e\n\u003cdd\u003eVarious (Rubber, Synthetic)\u003c\/dd\u003e\n        \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e1 Year\u003c\/dd\u003e\n        \u003cdt\u003ePackage Dimensions\u003c\/dt\u003e\n\u003cdd\u003e180mm × 150mm × 18mm (7.05\" × 5.95\" × 0.7\")\u003c\/dd\u003e\n        \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e0.12 kg (0.26 lbs)\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 Shift Housing Gasket (324670)\u003c\/li\u003e\n        \u003cli\u003e2 x Oil Seal (321453)\u003c\/li\u003e\n        \u003cli\u003e1 x Solenoid Cover Gasket (314876)\u003c\/li\u003e\n        \u003cli\u003e2 x Washer (311598)\u003c\/li\u003e\n        \u003cli\u003e4 x O-Ring (317178)\u003c\/li\u003e\n        \u003cli\u003e1 x O-Ring (322598)\u003c\/li\u003e\n        \u003cli\u003e1 x O-Ring (313446)\u003c\/li\u003e\n        \u003cli\u003e1 x O-Ring (314728)\u003c\/li\u003e\n        \u003cli\u003e1 x O-Ring (318372)\u003c\/li\u003e\n        \u003cli\u003e2 x Oil Seal (330137)\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\u003eSafely secure the outboard engine and disconnect the battery. Drain the gearcase oil completely into a suitable container.\u003c\/li\u003e\n        \u003cli\u003eRemove the propeller assembly, taking care to note the order of the thrust washer, spacer, and nut.\u003c\/li\u003e\n        \u003cli\u003eUnbolt and carefully lower the gearcase assembly from the engine's midsection.\u003c\/li\u003e\n        \u003cli\u003eDisassemble the gearcase, including the water pump and bearing carrier, laying out all parts in order on a clean surface.\u003c\/li\u003e\n        \u003cli\u003eCarefully remove all old gaskets, seals, and O-rings. Thoroughly clean all mating surfaces, ensuring they are free of old adhesive, corrosion, and debris.\u003c\/li\u003e\n        \u003cli\u003eInstall the new seals and O-rings from the kit. Apply a thin layer of marine grease to the seals before installation to prevent damage.\u003c\/li\u003e\n        \u003cli\u003eReassemble the gearcase components, following the manufacturer’s service manual for correct sequence and torque specifications.\u003c\/li\u003e\n        \u003cli\u003eRefill the gearcase with the recommended type and amount of fresh marine gear lube before reinstalling the propeller.\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 know if this seal kit will fit my engine?\u003c\/summary\u003e\n        \u003cp\u003eThis kit is specifically for Johnson\/Evinrude 85-140 HP V4 outboards from 1973–1983. Please verify your engine's model, horsepower, and year against the compatibility chart on this page. Do not purchase if your model is not explicitly listed.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eWhat are common signs of a failing lower unit seal?\u003c\/summary\u003e\n        \u003cp\u003eThe most common indicators are milky or creamy-looking gear oil (which signifies water intrusion) or a visible oil leak around the propeller shaft or drain screws. You may also notice a grinding noise or poor shifting performance.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eHow often should I replace my gearcase seals?\u003c\/summary\u003e\n        \u003cp\u003eThere is no fixed interval, but it is good practice to inspect for leaks every season. Seals should be replaced whenever the lower unit is serviced, if you notice any signs of water intrusion in the oil, or if the seals have become hard and brittle with age.\u003c\/p\u003e\n    \u003c\/details\u003e\n    \u003cdetails\u003e\n        \u003csummary\u003eDoes this kit include everything for a complete lower unit rebuild?\u003c\/summary\u003e\n        \u003cp\u003eThis is a seal kit, containing all necessary gaskets, O-rings, and oil seals. It does not include bearings, gears, or other internal hard parts. It is intended for resealing a mechanically sound gearcase.\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":50718249976123,"sku":"OSK705","price":59.99,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/OSK705.png?v=1762958134","url":"https:\/\/seasierra.com\/products\/lower-unit-seal-kit-fits-johnson-evinrude-85-140-hp-v4-outboards-replaces-18-2692","provider":"SeaSierra","version":"1.0","type":"link"}