{"product_id":"lucasng-393630-water-pump-kit-for-johnson-evinrude-omc-20-35-hp-direct-fit-impeller-full-service-parts","title":"LucaSng 393630 Water Pump Kit for Johnson Evinrude OMC 20-35 HP — Direct-Fit Impeller \u0026 Full Service Parts","description":"\u003cp\u003e\u003cstrong\u003eLucaSng 393630 water pump kit is a complete replacement assembly engineered to restore cooling for Johnson\/Evinrude\/OMC 20–35 HP outboard engines.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eIf your small outboard is losing cooling efficiency or showing signs of cavitation, a worn impeller and related pump components are often the cause. This kit includes the parts needed to service water pumps used on a range of Johnson, Evinrude and OMC engines, covering various 20, 25, 30 and 35 horsepower models across multiple production years. It’s designed as a direct-fit replacement for OE part numbers like 393630 and aftermarket equivalents such as Sierra 18-3382, so you can return your lower unit to reliable operation without hunting down individual components.\u003c\/p\u003e\n\n\u003ch3\u003eWhich engines and model years will this kit work with?\u003c\/h3\u003e\n\u003cp\u003eThe LucaSng 393630 kit fits many two- and three-cylinder Johnson and Evinrude outboards. It supports 20 hp and 25 hp models from 1985 onward, 25 hp commercial units from 1998–2001, 30 hp models from 1980 to present (and 2-cylinder 30 hp from 1983 on), plus 35 hp models from 1980–1982 and 2-cylinder 35 hp from 1983 onward.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003e20 hp: 1985 and later\u003c\/li\u003e\n  \u003cli\u003e25 hp: 1985 and later; commercial 1998–2001\u003c\/li\u003e\n  \u003cli\u003e30 hp: 1980–present; 2-cylinder 30 hp from 1983+\u003c\/li\u003e\n  \u003cli\u003e35 hp: 1980–1982; 2-cylinder 35 hp from 1983+\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat exactly is included in the replacement kit?\u003c\/h3\u003e\n\u003cp\u003eThe package contains the complete set of pump components shown in the product images so you can perform a full water-pump service in one visit. Typical contents are the impeller, gaskets, seals, bushings, and hardware required to reassemble the pump housing. This eliminates the need to source multiple individual parts and helps ensure a correct seal and fit.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplacement impeller sized for the 393630 application\u003c\/li\u003e\n  \u003cli\u003eGaskets and O-rings to prevent leaks\u003c\/li\u003e\n  \u003cli\u003eSeals and bushings for shaft support\u003c\/li\u003e\n  \u003cli\u003eMounting hardware for reassembly\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit compare to the original Johnson\/Evinrude parts?\u003c\/h3\u003e\n\u003cp\u003eThe LucaSng kit is manufactured to match the fit and function of OEM components, intended as a direct swap for OE part number 393630 and cross-reference Sierra 18-3382. It’s made to restore pump performance rather than change pump design, so installation follows the same steps as the factory service. Using a complete kit helps maintain cooling flow and prevents common failure points from worn or missing small parts.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement for OE 393630 and cross-reference parts\u003c\/li\u003e\n  \u003cli\u003eDimensions and materials chosen for compatibility\u003c\/li\u003e\n  \u003cli\u003eComplete set minimizes installation errors\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat should I check before installing this water pump kit?\u003c\/h3\u003e\n\u003cp\u003eInspect the lower unit housing and drive shaft for grooves, corrosion, or damage that could compromise the new seals and impeller. Verify the engine model and year against the fit list to ensure compatibility. Also prepare basic tools and a clean workspace to avoid contamination during reassembly.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eConfirm engine model\/year matches kit fitment\u003c\/li\u003e\n  \u003cli\u003eExamine housing and shaft for wear or damage\u003c\/li\u003e\n  \u003cli\u003eReplace any additional worn lower-unit components as needed\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: This LucaSng 393630 water pump kit is intended for boat owners, marine mechanics, and DIY enthusiasts who need a reliable, complete replacement for cooling pumps on Johnson, Evinrude and OMC 20–35 HP outboards. It’s especially useful for those performing routine lower-unit maintenance, restoring older engines to service, or preparing a vessel for a season of boating.\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: Is this pump kit a direct replacement for part 393630?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes. The LucaSng kit is made to directly replace OE 393630 and cross-reference Sierra 18-3382.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Can I install this myself without a mechanic?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes, if you have basic tools and follow service instructions; inspect the housing and shaft before reinstalling.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"LucaSng","offers":[{"title":"Default Title","offer_id":48086327361694,"sku":"B093CCTTWK","price":42.5,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0781\/2041\/9486\/files\/lucasng-front-assembly.jpg?v=1785895115","url":"https:\/\/northtrailauto.ca\/products\/lucasng-393630-water-pump-kit-for-johnson-evinrude-omc-20-35-hp-direct-fit-impeller-full-service-parts","provider":"North Trail Auto","version":"1.0","type":"link"}