{"product_id":"478m0214944-mercury-mercruiser-47803748-impeller-genuine-quicksilver-oem-part","title":"478M0214944 Mercury MerCruiser 47803748 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: 47-8M0214944\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 small outboard lower-unit water pump assemblies. This OEM impeller supersedes the earlier 47-803748 and 47-8M0135803 references and is used across selected 9.9HP-20HP two-stroke, carburetted four-stroke, SeaPro and Command Thrust applications.\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 • Current service replacement for earlier 47-803748 and 47-8M0135803 impellers\n\u003c\/p\u003e\n\u003cp\u003e\n • Designed for selected Mercury \/ Mariner 9.9HP-20HP small outboard applications\n\u003c\/p\u003e\n\u003cp\u003e\n • Used in lower-unit water pump assemblies on two-stroke and four-stroke models\n\u003c\/p\u003e\n\u003cp\u003e\n • Helps restore correct cooling-water pressure and tell-tale flow\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 • 47-8M0214944 → Supersedes 47-8M0135803\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8M0135803 → Supersedes 47-803748\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-803748 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 • 47-8M0214944\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0214944\n\u003c\/p\u003e\n\u003cp\u003e\n • 478M0214944\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-8M0135803\n\u003c\/p\u003e\n\u003cp\u003e\n • 8M0135803\n\u003c\/p\u003e\n\u003cp\u003e\n • 478M0135803\n\u003c\/p\u003e\n\u003cp\u003e\n • 47-803748\n\u003c\/p\u003e\n\u003cp\u003e\n • 803748\n\u003c\/p\u003e\n\u003cp\u003e\n • 47803748\n\u003c\/p\u003e\n\u003cp\u003e\n • 334-65021-0 related Tohatsu reference\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: 18-8921\n\u003c\/p\u003e\n\u003cp\u003e\n • REC: REC47-803748\n\u003c\/p\u003e\n\u003cp\u003e\n • AMS: HJ-HJB-J-921\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 small outboard lower-unit water pump assemblies\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner Command Thrust and SeaPro small outboard cooling systems\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury \/ Mariner 9.9HP-20HP EFI FourStroke service replacement applications\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 9.9HP Japanese International 2-Stroke, serial 0N059858 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 15HP Japanese International 2-Stroke, serial 0N001590 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 18HP Japanese International 2-Stroke, serial 0N001590 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 8HP Command Thrust 4-Stroke, serial 0R042475 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 9.9HP Command Thrust 4-Stroke, serial 0R042475 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 15HP SeaPro 4-Stroke, serial 0R051685 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 15HP Carb 2-Cylinder 4-Stroke, serial 0R235949 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 20HP Carb 2-Cylinder 4-Stroke, serial 0R235168 and up\n\u003c\/p\u003e\n\u003cp\u003e\n • Mercury 9.9HP-20HP EFI FourStroke service applications replacing 47-8M0135803 \/ 47-803748\n\u003c\/p\u003e\n\u003cp\u003e\n \u003cbr\u003e\n\u003c\/p\u003e\n\u003cp\u003e\n • HP Range: 8HP - 20HP\n\u003c\/p\u003e\n\u003cp\u003e\n • Engine Type: Mercury \/ Mariner small outboard lower-unit water pump system\n\u003c\/p\u003e\n\u003cp\u003e\n • Year Range: Application dependent by 0N and 0R serial range, with later EFI FourStroke replacement use where specified by parts diagram\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 rotates inside the lower-unit pump housing to draw water through the gearcase and deliver it into the engine cooling system. Correct impeller condition is essential for water pressure, pump priming and overheating protection.\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 • Reduced cooling-water pressure\n\u003c\/p\u003e\n\u003cp\u003e\n • Overheating at idle or low speed\n\u003c\/p\u003e\n\u003cp\u003e\n • Cracked, stiff or damaged impeller vanes\n\u003c\/p\u003e\n\u003cp\u003e\n • Rubber fragments in the cooling system\n\u003c\/p\u003e\n\u003cp\u003e\n • Pump not priming after service or storage\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":53388065308964,"sku":"678633180507","price":39.95,"currency_code":"AUD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0994\/8115\/7924\/files\/original_d56f2922-b4b7-4b3f-b1ab-49f452c24c6c.jpg?v=1777210669","url":"https:\/\/www.sawleysautoandmarine.com.au\/products\/478m0214944-mercury-mercruiser-47803748-impeller-genuine-quicksilver-oem-part","provider":"Sawley's Auto and Marine","version":"1.0","type":"link"}