{"product_id":"tutor-auto-water-pump-kit-for-johnson-evinrude-20-35hp-neoprene-impeller-full-service-kit","title":"Tutor Auto Water Pump Kit for Johnson\/Evinrude 20-35HP — Neoprene Impeller Full Service Kit","description":"\u003cp\u003e\u003cstrong\u003eThe Tutor Auto 393630 water pump kit is a complete neoprene-impeller replacement set designed to restore cooling flow on compatible Johnson and Evinrude 20–35HP outboards.\u003c\/strong\u003e\u003c\/p\u003e\n\n\u003cp\u003eThis kit gathers the key components needed for a full water-pump service—impeller, housing, gaskets, seals and mounting hardware—engineered to match OEM fit and function for a wide range of Johnson and Evinrude engines. It’s built so owners and marine technicians can replace the worn parts that most commonly fail on small outboards and re-establish proper raw-water circulation.\u003c\/p\u003e\n\n\u003ch3\u003eWhich models and years will this kit fit?\u003c\/h3\u003e\n\u003cp\u003eThe Tutor Auto 393630 kit replaces several OEM numbers and fits many Johnson\/Evinrude engines across different years. Always confirm compatibility with your exact lower unit or model year before ordering to ensure correct parts and fitment.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eReplaces Johnson\/Evinrude part numbers: 393630, 393509, 391636, 0393630.\u003c\/li\u003e\n  \u003cli\u003eAlso cross-references Sierra part 18-3382.\u003c\/li\u003e\n  \u003cli\u003eCommon fits include 20\/25\/30\/35HP models from various years (see product compatibility list for specifics).\u003c\/li\u003e\n  \u003cli\u003eWorks for many 1980s–2001 model ranges—verify against your engine serial and year.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhat components are included in the replacement kit?\u003c\/h3\u003e\n\u003cp\u003eThis kit is a full water-pump service package, so you receive the parts needed to remove the old impeller and reinstall a complete pump assembly. Components are chosen to deliver a direct-fit replacement without sourcing separate pieces.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eNeoprene impeller (part 395289) for flexible, durable vanes.\u003c\/li\u003e\n  \u003cli\u003ePump cup, pump housing, wear plate, gasket, O-ring and seal for assembly integrity.\u003c\/li\u003e\n  \u003cli\u003eMounting bolts and an installation wrench to simplify the service task.\u003c\/li\u003e\n  \u003cli\u003eAll parts packaged together as shown in product photos.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eHow does this kit compare to OEM parts and what quality can I expect?\u003c\/h3\u003e\n\u003cp\u003eThe kit is manufactured to match OEM dimensions and installation points so it mounts and performs like the factory unit. Materials are selected for marine durability; the impeller uses a neoprene compound chosen for flexibility and wear resistance under typical boating conditions.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eDirect replacement design for straightforward installation and alignment.\u003c\/li\u003e\n  \u003cli\u003eNeoprene impeller for resilience against heat and cavitation within rated service intervals.\u003c\/li\u003e\n  \u003cli\u003eMeets or exceeds OEM fit standards though not sold as an original OMC-branded part.\u003c\/li\u003e\n  \u003cli\u003eIncludes hardware to avoid mixing mismatched components during repair.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch3\u003eWhen should I replace the water pump impeller and how often?\u003c\/h3\u003e\n\u003cp\u003eImpellers are wear items that should be inspected regularly and replaced on a preventive schedule. Following a routine replacement interval helps avoid overheating and potential engine damage from inadequate water flow.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eInspect impeller annually or after about 100 hours of operation.\u003c\/li\u003e\n  \u003cli\u003eReplace if vanes show cracking, chunking, or reduced flex.\u003c\/li\u003e\n  \u003cli\u003eChange kit before long boating seasons or extended trips to remote waters.\u003c\/li\u003e\n  \u003cli\u003eUse this full kit to refresh all sealing surfaces and fasteners at once.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003cp\u003eWho is this for: The Tutor Auto 393630 water pump kit is suited for boat owners, DIY mechanics and marine technicians working on Johnson and Evinrude 20–35HP outboards who need a full, direct-fit impeller replacement. It’s ideal if you want a single purchase to refresh the impeller, housing and related seals with parts designed to match OEM specifications and make pump servicing simpler and more reliable.\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 fit my Johnson 25HP from 1999?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Likely yes if your engine matches the listed 25HP compatibility; verify using your engine serial\/year against the product compatibility list.\u003c\/p\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"faq-item\"\u003e\n\u003cp class=\"faq-q\"\u003eQ: Are all components included to replace the impeller?\u003c\/p\u003e\n\u003cp class=\"faq-a\"\u003eA: Yes—impeller, housing, pump cup, wear plate, gaskets, seal, O-ring, bolts and an install wrench are included.\u003c\/p\u003e\n\u003c\/div\u003e\u003c\/section\u003e","brand":"Tutor Auto","offers":[{"title":"Default Title","offer_id":55162893762903,"sku":"B08L74RS86","price":33.97,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/1050\/1524\/7191\/files\/tutor-auto-front-packaging-393630.jpg?v=1790339589","url":"https:\/\/britishgarage.co.uk\/products\/tutor-auto-water-pump-kit-for-johnson-evinrude-20-35hp-neoprene-impeller-full-service-kit","provider":"British Garage","version":"1.0","type":"link"}