{"product_id":"lucasng-water-pump-kit-for-johnson-evinrude-outboards-20-35-hp-replacement-impeller-gasket-set","title":"LucaSng Water Pump Kit for Johnson Evinrude Outboards — 20-35 HP Replacement Impeller \u0026 Gasket Set","description":"\u003cb\u003eLucaSng 393630 water pump kit is a complete replacement assembly engineered to restore cooling performance on Johnson and Evinrude 20–35 HP outboard engines.\u003c\/b\u003e\n\n\u003cp\u003eThis aftermarket water pump kit contains the components needed to replace a worn impeller and its seals on compatible Johnson, Evinrude and OMC outboard motors. It fits multiple model years and horsepower ranges, matching OEM part numbers like 393630 and Sierra 18-3382 so you can repair your lower unit without buying an expensive manufacturer factory part. The kit is supplied with gaskets, impeller, housing components and fasteners as pictured, intended for routine maintenance or emergency replacement when water flow to the engine drops.\u003c\/p\u003e\n\n\u003ch3\u003eWhich outboard engines will this LucaSng kit fit?\u003c\/h3\u003e\n\u003cp\u003eThe kit covers a broad range of Johnson and Evinrude outboards across several model years and horsepower classes. Compatibility includes 20 hp and 25 hp units from 1985 onward, 25 hp commercial models from 1998–2001, and many 30–35 hp models spanning 1980 to later two-cylinder configurations.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e20 hp — 1985 \u0026amp; later\u003c\/li\u003e\n  \u003cli\u003e25 hp — 1985 \u0026amp; later; commercial 1998–2001\u003c\/li\u003e\n  \u003cli\u003e30 hp — 1980–present; 2-cylinder 1983 \u0026amp; later\u003c\/li\u003e\n  \u003cli\u003e35 hp — 1980–1982 and 2-cylinder 1983 \u0026amp; later\u003c\/li\u003e\n  \u003cli\u003eReplaces OEM 393630 \/ 0393630 and Sierra 18-3382\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this pump kit improve cooling and engine reliability?\u003c\/h3\u003e\n\u003cp\u003eReplacing a failing impeller and worn seals restores the engine’s ability to circulate cooling water, which helps prevent overheating and keeps operating temperatures stable. The kit supplies all critical wear items so you can rebuild the water pump assembly during scheduled maintenance or after a noticed decrease in water stream from the telltale.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNew impeller blades restore proper water flow\u003c\/li\u003e\n  \u003cli\u003eFresh gaskets and seals prevent leaks and ingestion of air\u003c\/li\u003e\n  \u003cli\u003eIncluded hardware enables a complete assembly swap\u003c\/li\u003e\n  \u003cli\u003eWorks with OEM mounting geometry for a straightforward fit\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat’s included and what tools will I need to install it?\u003c\/h3\u003e\n\u003cp\u003eThe LucaSng kit ships with the impeller, gasket set, housing components and the necessary fasteners shown in the product photos. Typical installation requires common marine tools and basic mechanical skill; plan for prop removal, lower unit access, and a brief cooling-system bleed after fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eImpeller, gaskets, seals, housing parts and bolts included\u003c\/li\u003e\n  \u003cli\u003eTools: socket set, torque wrench, screwdrivers, marine grease\u003c\/li\u003e\n  \u003cli\u003eExpect 1–2 hours for a competent DIY mechanic\u003c\/li\u003e\n  \u003cli\u003eFollow engine manual torque specs and fill\/bleed procedures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWill this aftermarket kit match OEM performance?\u003c\/h3\u003e\n\u003cp\u003eLucaSng designs this replacement to meet the dimensions and fitment of the original Johnson\/Evinrude parts it replaces. While materials and manufacturing differ from factory-labeled items, the kit is specified to restore normal cooling function when installed correctly and used within the stated engine ranges.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eForm, fit and function aim to replicate OEM 393630\u003c\/li\u003e\n  \u003cli\u003eIntended for routine service intervals and emergency repairs\u003c\/li\u003e\n  \u003cli\u003eInspect impeller orientation and shaft keying during installation\u003c\/li\u003e\n  \u003cli\u003eReplace at recommended intervals to avoid in-water failures\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: Boaters, marine technicians and DIY enthusiasts who own Johnson, Evinrude or OMC outboards in the 20–35 HP range and need an economical, complete water pump replacement. This kit is suited for someone who prefers to perform scheduled lower-unit maintenance or wants a ready-to-install repair option when cooling flow diminishes. If you require an exact OEM-branded replacement, check part numbers and engine year; otherwise this LucaSng kit offers a practical, compatible solution for restoring water pump performance.\u003c\/p\u003e\n\u003csection class=\"product-faq-snippet\"\u003e\u003ch3\u003eFAQ\u003c\/h3\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Does this kit replace Johnson\/Evinrude part 393630?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The LucaSng kit is designed to replace OEM part 393630 (0393630) and is compatible with Sierra 18-3382 equivalents.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install this myself?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, a competent DIYer can install it with common tools; expect 1–2 hours and follow engine torque and bleed procedures.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"LucaSng","offers":[{"title":"Default Title","offer_id":55167829606743,"sku":"B093CCTTWK","price":40.68,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/lucasng-393630-front-assembly.jpg?v=1790393705","url":"https:\/\/britishgarage.co.uk\/products\/lucasng-water-pump-kit-for-johnson-evinrude-outboards-20-35-hp-replacement-impeller-gasket-set","provider":"British Garage","version":"1.0","type":"link"}