{"product_id":"40hp-50hp-55hp-water-pump-housing-gasket-yamaha-663-44316-a0","title":"40HP 50HP 55HP Water Pump Housing Gasket for Yamaha 2-Stroke Outboards Replaces 663-44316-A0","description":"\u003cdiv class=\"qMYqUG_convSearchResultHighlightRoot\"\u003e\n\u003cdiv class=\"\"\u003e\n\u003csection class=\"text-token-text-primary w-full focus:outline-none has-data-writing-block:pointer-events-none [\u0026amp;:has([data-writing-block])\u0026gt;*]:pointer-events-auto R6Vx5W_threadScrollVars scroll-mb-[calc(var(--scroll-root-safe-area-inset-bottom,0px)+var(--thread-response-height))] scroll-mt-[calc(var(--header-height)+min(200px,max(70px,20svh)))]\" dir=\"auto\"\u003e\n\u003cdiv class=\"text-base my-auto mx-auto pb-10 [--thread-content-margin:var(--thread-content-margin-xs,calc(var(--spacing)*4))] @w-sm\/main:[--thread-content-margin:var(--thread-content-margin-sm,calc(var(--spacing)*6))] @w-lg\/main:[--thread-content-margin:var(--thread-content-margin-lg,calc(var(--spacing)*16))] px-(--thread-content-margin)\"\u003e\n\u003cdiv class=\"[--thread-content-max-width:40rem] @w-lg\/main:[--thread-content-max-width:48rem] mx-auto max-w-(--thread-content-max-width) flex-1 group\/turn-messages focus-visible:outline-hidden relative flex w-full min-w-0 flex-col agent-turn\"\u003e\n\u003cdiv class=\"flex max-w-full flex-col gap-4 grow\"\u003e\n\u003cdiv dir=\"auto\" class=\"min-h-8 text-message relative flex w-full flex-col items-end gap-2 text-start break-words whitespace-normal outline-none keyboard-focused:focus-ring [.text-message+\u0026amp;]:mt-1\" tabindex=\"0\"\u003e\n\u003cdiv class=\"flex w-full flex-col gap-1 empty:hidden\"\u003e\n\u003cdiv class=\"markdown prose dark:prose-invert wrap-break-word w-full light markdown-new-styling\"\u003e\n\u003cp\u003eQuality aftermarket water pump housing gasket suitable for a range of Yamaha 2-stroke outboard engines.\u003c\/p\u003e\n\u003cp\u003eThis gasket seals the water pump housing and helps maintain proper cooling system operation. Manufactured to OEM specifications for reliable fitment and durability.\u003c\/p\u003e\n\u003cp\u003eThis gasket corresponds to \u003cstrong\u003eItem No. 20\u003c\/strong\u003e on the Yamaha lower unit (drive shaft assembly) diagram.\u003c\/p\u003e\n\u003ch4\u003eReplaces Part Number\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003e663-44316-A0\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eFitment\u003c\/h4\u003e\n\u003cp\u003e\u003cstrong\u003eYamaha Outboards (6E9 \/ 6H4 \/ 6H5 Series)\u003c\/strong\u003e\u003c\/p\u003e\n\u003cp\u003e\u003cstrong\u003e40HP\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eModels with 6E9 and 6H4 serial ranges\u003c\/li\u003e\n\u003cli\u003eApprox. 1984-1993\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e50HP\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003e6H5 Series Models\u003c\/li\u003e\n\u003cli\u003eApprox. 1984-1993\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp\u003e\u003cstrong\u003e55HP\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eSelected Models\u003c\/li\u003e\n\u003cli\u003eApprox. 1989-1993\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch4\u003eIMPORTANT\u003c\/h4\u003e\n\u003cp\u003ePlease check your engine model, serial number and existing gasket before ordering. If you are unsure of compatibility, send us your engine details and our team will gladly confirm the correct part.\u003c\/p\u003e\n\u003ch4\u003eDetails\u003c\/h4\u003e\n\u003cul\u003e\n\u003cli\u003eWater pump housing gasket\u003c\/li\u003e\n\u003cli\u003ePremium aftermarket replacement\u003c\/li\u003e\n\u003cli\u003eReplaces Yamaha 663-44316-A0\u003c\/li\u003e\n\u003cli\u003eCorresponds to Item No. 20 on Yamaha lower unit diagram\u003c\/li\u003e\n\u003cli\u003eHelps maintain proper cooling system sealing\u003c\/li\u003e\n\u003cli\u003eManufactured to OEM specifications\u003c\/li\u003e\n\u003cli\u003eDirect-fit replacement\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eWhy Buy from SSI Marine\u003c\/h3\u003e\n\u003cul\u003e\n\u003cli\u003eWorkshop-tested aftermarket \u0026amp; OEM-spec parts\u003c\/li\u003e\n\u003cli\u003eFast UK dispatch (same-day before 1 PM Mon–Fri)\u003c\/li\u003e\n\u003cli\u003eTracked 24-hour UK delivery\u003c\/li\u003e\n\u003cli\u003eUK stock – collection available from Leigh (Manchester)\u003c\/li\u003e\n\u003cli\u003eTechnical support available\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3\u003eBuyer Responsibility\u003c\/h3\u003e\n\u003cp\u003ePlease confirm compatibility with your engine model and serial number before purchase. If unsure, contact us — our technical team will be happy to help.\u003c\/p\u003e\n\u003cp\u003eHelp Page:\u003cbr\u003e\u003ca rel=\"noopener\" class=\"decorated-link cursor-pointer\"\u003ehttps:\/\/www.ssimarine.co.uk\/pages\/contact-us\u003c\/a\u003e\u003c\/p\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003cdiv class=\"z-0 flex min-h-[46px] justify-start\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003cdiv class=\"mt-3 w-full empty:hidden\"\u003e\n\u003cdiv class=\"text-center\"\u003e\u003cbr\u003e\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e\n\u003c\/section\u003e\n\u003c\/div\u003e\n\u003c\/div\u003e","brand":"SSI Marine ","offers":[{"title":"Default Title","offer_id":56990326096250,"sku":"REC663-44316-A0","price":2.5,"currency_code":"GBP","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/2285\/5233\/files\/rn-image_picker_lib_temp_02ce0373-32af-4f8b-a890-35c08219489f.jpg?v=1781866892","url":"https:\/\/ssimarine.co.uk\/products\/40hp-50hp-55hp-water-pump-housing-gasket-yamaha-663-44316-a0","provider":"SSI Marine ","version":"1.0","type":"link"}