{"product_id":"663-44315-a0-gasket","title":"663-44315-A0 Yamaha gasket | Genuine OEM Yamaha Outboard Part","description":"\u003cp\u003e\n 🔧 Product Description\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Genuine Yamaha Water Pump Wear Plate Gasket - Part Number: 663-44315-A0\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n A genuine Yamaha lower water-pump gasket fitted beneath the wear plate on selected 40HP and 50HP two-stroke outboards.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n The gasket seals the lower face of the stainless pump plate against the gearcase or pump base, preventing cooling-water pressure from escaping beneath the impeller assembly.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n ⚙️ Key Features\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Genuine Yamaha OEM water-pump gasket\n\u003c\/p\u003e\n\u003cp\u003e\n • Correct Yamaha part number 663-44315-A0\n\u003c\/p\u003e\n\u003cp\u003e\n • Lower wear-plate sealing position\n\u003c\/p\u003e\n\u003cp\u003e\n • Used in selected Yamaha 40HP and 50HP two-stroke pumps\n\u003c\/p\u003e\n\u003cp\u003e\n • Cross-references with Sierra and Recmar replacements\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🔄 Supersession \u0026amp; Cross Reference\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n OEM Supersession Chain:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 663-44315-A0 current Yamaha OEM water-pump gasket reference\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n OEM \/ Related Numbers:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • 663-44315-A0\n\u003c\/p\u003e\n\u003cp\u003e\n • 663-44315-A0-00\n\u003c\/p\u003e\n\u003cp\u003e\n • 66344315A000\n\u003c\/p\u003e\n\u003cp\u003e\n • 663-44316-A0 related upper wear-plate gasket\n\u003c\/p\u003e\n\u003cp\u003e\n • 663-44322-00 related pump insert\n\u003c\/p\u003e\n\u003cp\u003e\n • 663-44323-00 related water-pump outer plate\n\u003c\/p\u003e\n\u003cp\u003e\n • 663-44324-A0 related cartridge gasket\n\u003c\/p\u003e\n\u003cp\u003e\n • 663-W0078-00 related water-pump repair kit\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Aftermarket \/ Verified Equivalents:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-0292\n\u003c\/p\u003e\n\u003cp\u003e\n • Recmar: REC663-44315-A0\n\u003c\/p\u003e\n\u003cp\u003e\n • Included in Sierra lower-unit seal kit 18-2789\n\u003c\/p\u003e\n\u003cp\u003e\n • Included in Sierra water-pump kit 18-3430\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🚤 Compatibility\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Commonly used on:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Yamaha 40HP and 50HP two-stroke lower-unit water pumps\n\u003c\/p\u003e\n\u003cp\u003e\n • Pump assemblies using the 663-series wear plate and cartridge components\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Typically suits:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine models:\n\u003c\/p\u003e\n\u003cp\u003e\n • Yamaha 40HP two-stroke - approximately 1984-1994\n\u003c\/p\u003e\n\u003cp\u003e\n • Yamaha 40E, 40H, 40J, 40N, 40Q and related 663-series gearcases\n\u003c\/p\u003e\n\u003cp\u003e\n • Yamaha 50HP two-stroke - approximately 1984-1987\n\u003c\/p\u003e\n\u003cp\u003e\n • Yamaha 50HP Pro Series - approximately 1987-1990\n\u003c\/p\u003e\n\u003cp\u003e\n • Yamaha P50 - approximately 1995-1996\n\u003c\/p\u003e\n\u003cp\u003e\n • Yamaha 50D, 50G and 50H lower units using the 663-series water pump\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • HP Range: 40HP - 50HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine Type: Yamaha carburetted two-stroke outboard\n\u003c\/p\u003e\n\u003cp\u003e\n • Year Range: Approximately 1984 - 1996, dependent on gearcase\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 🔌 Function\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n The gasket seals beneath the water-pump wear plate so cooling water is drawn through the inlet and directed into the pump without bypassing the impeller chamber.\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Common signs of failure:\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Weak cooling-water flow after water-pump service\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine overheating despite a serviceable impeller\n\u003c\/p\u003e\n\u003cp\u003e\n • Water leaks beneath the wear plate\n\u003c\/p\u003e\n\u003cp\u003e\n • Gasket tears during pump disassembly\n\u003c\/p\u003e\n\u003cp\u003e\n • Corrosion or old gasket material prevents the plate from sitting flat\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n 📦 Condition\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • Genuine Yamaha part\n\u003c\/p\u003e\n\u003cp\u003e\n • Brand new\n\u003c\/p\u003e\n\u003cp\u003e\n • Supplied in original or equivalent packaging\n\u003c\/p\u003e\n","brand":"Yamaha","offers":[{"title":"Default Title","offer_id":53394907889956,"sku":"1120585","price":7.0,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_955768ea-cd4c-4aa7-951a-27196c56eff0.jpg?v=1777269140","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/663-44315-a0-gasket","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}