{"product_id":"lower-unit-seal-kit-fits-johnson-evinrude-85-140-hp-v4-replaces-18-2692","title":"Lower Unit Seal Kit – Fits Johnson Evinrude 85-140 HP V4 (Replaces 18-2692)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eLower Unit Seal Kit – Fits Johnson Evinrude 85-140 HP V4 (Replaces 18-2692)\u003c\/strong\u003e is designed to restore the gearcase integrity of Johnson and Evinrude 85–140 HP V4 outboard engines from 1973–1983. It provides all necessary seals and gaskets to prevent water intrusion and oil leaks, ensuring reliable performance.\u003c\/p\u003e\n\u003cp\u003eThis kit is a direct interchange for several part numbers, including Sierra 18-2692, GLM 86712, Mallory 9-74113, and others, offering a dependable alternative to OEM components.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered for direct OEM-level replacement.\u003c\/li\u003e\n  \u003cli\u003eSpecifically designed for V4 engine applications.\u003c\/li\u003e\n  \u003cli\u003eIncludes a comprehensive set of gaskets, seals, and O-rings for a complete overhaul.\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      \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\u003eSeaSierra\u003c\/td\u003e\n        \u003ctd\u003e18-2692\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eQuickMarine\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\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model\/year in the table below.\u003c\/p\u003e\n\u003cp\u003eThis kit is designed for the following Johnson and Evinrude models.\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\u003eYears\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\u003e1973–1980\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\u003e1981–1983\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\u003e1979–1980\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\u003e1975, 1977, 1980–1983\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\u003e1973–1976\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\u003e1977–1983\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\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eLower Unit Gearcase Seal Kit\u003c\/dd\u003e\n    \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eDirect OEM replacement\u003c\/dd\u003e\n    \u003cdt\u003eHousing Color\u003c\/dt\u003e\n\u003cdd\u003eBlack\/Gray\u003c\/dd\u003e\n    \u003cdt\u003eWarranty\u003c\/dt\u003e\n\u003cdd\u003e30 days (HARVARD MARINE)\u003c\/dd\u003e\n    \u003cdt\u003eOther Technical Attributes\u003c\/dt\u003e\n\u003cdd\u003eV4 engine applications\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n    \u003cli\u003e1 x Shift Housing Gasket (0352165\/324670)\u003c\/li\u003e\n    \u003cli\u003e1 x Solenoid Cover Gasket (314876)\u003c\/li\u003e\n    \u003cli\u003e2 x Oil Seal (0330137)\u003c\/li\u003e\n    \u003cli\u003e2 x Oil Seal (0321453)\u003c\/li\u003e\n    \u003cli\u003e2 x Drain\/Fill Plug Washer (0311598)\u003c\/li\u003e\n    \u003cli\u003e4 x O-Ring (0317178)\u003c\/li\u003e\n    \u003cli\u003e1 x O-Ring (0307853\/322598)\u003c\/li\u003e\n    \u003cli\u003e1 x O-Ring (0313446)\u003c\/li\u003e\n    \u003cli\u003e1 x O-Ring (0354731\/314728)\u003c\/li\u003e\n    \u003cli\u003e1 x O-Ring (0318372)\u003c\/li\u003e\n    \u003cli\u003e1 x O-Ring (0302493)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003col\u003e\n  \u003cli\u003eDisconnect the battery and shift linkage. Place a drain pan under the lower unit.\u003c\/li\u003e\n  \u003cli\u003eRemove the drain\/fill plugs to drain the gearcase oil completely. Inspect the oil for metal shavings or a milky appearance, which indicates water intrusion.\u003c\/li\u003e\n  \u003cli\u003eUnbolt and carefully lower the gearcase from the engine midsection.\u003c\/li\u003e\n  \u003cli\u003eDisassemble the lower unit to access the seals, including the driveshaft and propshaft seals. Keep parts organized.\u003c\/li\u003e\n  \u003cli\u003eRemove all old seals, O-rings, and gaskets. Thoroughly clean all mating surfaces and seal bores, ensuring they are free of old adhesive or corrosion.\u003c\/li\u003e\n  \u003cli\u003eCarefully install the new seals and O-rings from the kit. Use a proper seal driver or socket to press them in squarely without damage. Lightly lubricate seals with marine grease.\u003c\/li\u003e\n  \u003cli\u003eReassemble the gearcase, torquing bolts to the manufacturer's specifications.\u003c\/li\u003e\n  \u003cli\u003eReinstall the lower unit, ensuring the driveshaft, water tube, and shift shaft align correctly.\u003c\/li\u003e\n  \u003cli\u003eRefill the gearcase with fresh, high-quality marine gear lubricant according to your engine's manual.\u003c\/li\u003e\n  \u003cli\u003eAfter running the engine, re-check for any oil or water leaks around the sealed areas.\u003c\/li\u003e\n\u003c\/ol\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I confirm this kit fits my specific engine?\u003c\/summary\u003e\n  \u003cp\u003eVerify your engine's brand (Johnson\/Evinrude), model (V4), horsepower rating, and year of manufacture against the Engine \u0026amp; Model Compatibility table. This kit is specifically for 85–140 HP V4 models made between 1973 and 1983.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs that my lower unit seals are failing?\u003c\/summary\u003e\n  \u003cp\u003eCommon signs include milky or creamy gear oil (indicating water intrusion), visible oil leaks around the propeller shaft or driveshaft, or metal shavings on the magnetic drain plug. These symptoms suggest a breach in the seals that requires immediate attention.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs this kit for 2-stroke or 4-stroke engines?\u003c\/summary\u003e\n  \u003cp\u003eThis kit is designed for the V4 engine models produced in the specified year range, which are 2-stroke outboards. Always confirm your engine's specifications before ordering.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should lower unit seals be replaced?\u003c\/summary\u003e\n  \u003cp\u003eIt is good practice to inspect your gear lube annually and replace the seals whenever you notice signs of leakage or water contamination. Many technicians recommend replacing lower unit seals every 3-5 years as preventative maintenance, or whenever the water pump is serviced.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eAre any special tools required for installation?\u003c\/summary\u003e\n  \u003cp\u003eInstallation requires standard mechanical tools, a torque wrench, and potentially a seal puller and seal driver set for proper removal and installation of the oil seals without damaging the gearcase housing.\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\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\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":50718249943355,"sku":"SS-24OSK705","price":59.5,"currency_code":"USD","in_stock":true}],"url":"https:\/\/seasierra.com\/products\/lower-unit-seal-kit-fits-johnson-evinrude-85-140-hp-v4-replaces-18-2692","provider":"SeaSierra","version":"1.0","type":"link"}