{"product_id":"478m0204712-mercury-mercruiser-impeller-genuine-quicksilver-oem-part","title":"478M0204712 Mercury MerCruiser Impeller | Genuine Quicksilver OEM 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 Quicksilver Water Pump Impeller - Part Number: 47-8M0204712\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n Genuine Quicksilver\/Mercury water pump impeller for selected Mercury and Mariner 15HP-25HP outboard lower-unit water pump applications. This OEM impeller replaces earlier 85089-series Mercury impeller references and helps restore proper cooling-water flow through the gearcase pump.\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 Quicksilver\/Mercury OEM water pump impeller\n\u003c\/p\u003e\n\u003cp\u003e\n • Designed for selected Mercury \/ Mariner 15HP-25HP outboards\n\u003c\/p\u003e\n\u003cp\u003e\n • Direct replacement for earlier 85089-series impeller references\n\u003c\/p\u003e\n\u003cp\u003e\n • Used in compatible lower-unit water pump assemblies\n\u003c\/p\u003e\n\u003cp\u003e\n • Helps restore tell-tale flow, cooling-water pressure and pump priming\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 • 47-8M0204712 → Supersedes 47-8M0027792\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8M0027792 → Supersedes 47-8M0024502\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8M0024502 → Supersedes 47-850893\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-850893 → Supersedes 47-8508920\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8508920 → Supersedes 47-8508910\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8508910 → Supersedes 47-850891\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-850891 → Supersedes 47-85089\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-85089 earlier OEM 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 • 47-8M0204712\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0204712\n\u003c\/p\u003e\n\u003cp\u003e\n • 478M0204712\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8M0027792\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0027792\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8M0024502\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0024502\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-850893\n\u003c\/p\u003e\n\u003cp\u003e\n • 850893\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8508920\n\u003c\/p\u003e\n\u003cp\u003e\n • 8508920\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8508910\n\u003c\/p\u003e\n\u003cp\u003e\n • 8508910\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-850891\n\u003c\/p\u003e\n\u003cp\u003e\n • 850891\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-85089\n\u003c\/p\u003e\n\u003cp\u003e\n • 85089\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 • REC: REC47-85089\n\u003c\/p\u003e\n\u003cp\u003e\n • Sierra: 18-3099 where matched by pump dimensions and application\n\u003c\/p\u003e\n\u003cp\u003e\n • Mallory: 9-45310 where matched by pump dimensions and application\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 • Mercury \/ Mariner 15HP-25HP outboard lower-unit water pump assemblies\n\u003c\/p\u003e\n\u003cp\u003e\n • Small-to-mid Mercury \/ Mariner outboard gearcase cooling systems using the 85089-series impeller\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 • Mercury \/ Mariner 15HP 2-Stroke outboard applications using 85089-series water pump impeller\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner 18HP 2-Stroke outboard applications using 85089-series water pump impeller\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner 20HP 2-Stroke outboard applications using 85089-series water pump impeller\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner 25HP 2-Stroke outboard applications using 85089-series water pump impeller\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner 15HP-25HP small outboard gearcase applications where the parts diagram specifies 47-8M0204712\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner 15HP-25HP service applications replacing 47-85089, 47-850891, 47-8508910, 47-8508920, 47-850893, 47-8M0024502 or 47-8M0027792\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • HP Range: 15HP - 25HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine Type: Mercury \/ Mariner outboard lower-unit water pump system\n\u003c\/p\u003e\n\u003cp\u003e\n • Year Range: Application dependent by model and serial number; confirm against the gearcase water pump parts diagram when replacing earlier 85089-series impellers\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 impeller draws water through the lower unit and pushes it into the engine cooling system. A correct impeller helps maintain water pressure, reduces overheating risk and supports reliable cooling at idle, low speed and operating RPM.\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 or inconsistent tell-tale water stream\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine overheating warning\n\u003c\/p\u003e\n\u003cp\u003e\n • Pump not priming after service\n\u003c\/p\u003e\n\u003cp\u003e\n • Cracked, stiff or missing impeller vanes\n\u003c\/p\u003e\n\u003cp\u003e\n • Reduced cooling-water pressure\n\u003c\/p\u003e\n\u003cp\u003e\n • Rubber fragments found in the cooling system\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 Quicksilver 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":"Quicksilver","offers":[{"title":"Default Title","offer_id":53388112953636,"sku":"745061489097","price":58.15,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_27480b82-c263-45a7-91ad-34408028fc89.jpg?v=1777210989","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/478m0204712-mercury-mercruiser-impeller-genuine-quicksilver-oem-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}