{"product_id":"sierra-marine-water-pump-kit-18-48317","title":"Sierra Marine Water Pump Kit 18-48317 - Complete Cooling System Rebuild","description":"\u003ch2\u003eSierra Marine Complete Water Pump Kit 18-48317 – Mercury \/ Tohatsu 8-9.9HP 4-Stroke Cooling System Rebuild\u003c\/h2\u003e\n\u003cp data-start=\"293\" data-end=\"611\"\u003eThe \u003cstrong data-start=\"297\" data-end=\"340\"\u003eSierra 18-48317 Complete Water Pump Kit\u003c\/strong\u003e is a full-service rebuild solution designed to restore proper cooling performance in small horsepower 4-stroke outboards. This kit includes all critical wear components required to service the water pump assembly, ensuring reliable water flow and preventing overheating.\u003c\/p\u003e\n\u003cp data-start=\"613\" data-end=\"870\"\u003eBuilt to meet or exceed OEM specifications, this kit is a direct aftermarket replacement for Mercury, Nissan, and Tohatsu outboards using the 209cc platform. Ideal for scheduled maintenance or correcting weak telltale flow, overheating, or impeller failure.\u003c\/p\u003e\n\u003cp data-start=\"872\" data-end=\"1027\"\u003eThis is a \u003cstrong data-start=\"882\" data-end=\"906\"\u003ecomplete rebuild kit\u003c\/strong\u003e, eliminating the need to source individual gaskets, seals, or internal components. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1029\" data-end=\"1032\"\u003e\n\u003ch2 data-start=\"1034\" data-end=\"1053\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1037\" data-end=\"1053\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"1054\" data-end=\"1399\"\u003e\n\u003cli data-start=\"1054\" data-end=\"1131\"\u003eComplete water pump rebuild kit (impeller, gaskets, seals, wear components)\u003c\/li\u003e\n\u003cli data-start=\"1132\" data-end=\"1175\"\u003eRestores proper engine cooling water flow\u003c\/li\u003e\n\u003cli data-start=\"1176\" data-end=\"1220\"\u003eDirect OEM replacement fit and performance\u003c\/li\u003e\n\u003cli data-start=\"1221\" data-end=\"1307\"\u003eMeets or exceeds manufacturer specifications \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"1308\" data-end=\"1342\"\u003eSierra limited lifetime warranty\u003c\/li\u003e\n\u003cli data-start=\"1343\" data-end=\"1399\"\u003eDesigned for small 4-stroke outboards (209cc platform)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1401\" data-end=\"1404\"\u003e\n\u003ch2 data-start=\"1406\" data-end=\"1433\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1409\" data-end=\"1433\"\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"1435\" data-end=\"1470\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1439\" data-end=\"1470\"\u003eMercury \/ Mariner Outboards\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1471\" data-end=\"1558\"\u003e\n\u003cli data-start=\"1471\" data-end=\"1494\"\u003e8 HP 4-Stroke (209cc)\u003c\/li\u003e\n\u003cli data-start=\"1495\" data-end=\"1522\"\u003e9.9 HP 4-Stroke (209cc)\u003c\/li\u003e\n\u003cli data-start=\"1523\" data-end=\"1558\"\u003eSerial Range: \u003cstrong data-start=\"1539\" data-end=\"1558\"\u003eR042475 \u0026amp; newer\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-start=\"1560\" data-end=\"1594\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1564\" data-end=\"1594\"\u003eNissan \/ Tohatsu Outboards\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1595\" data-end=\"1628\"\u003e\n\u003cli data-start=\"1595\" data-end=\"1610\"\u003eF8 (4-stroke)\u003c\/li\u003e\n\u003cli data-start=\"1611\" data-end=\"1628\"\u003eF9.8 (4-stroke)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1630\" data-end=\"1794\"\u003eThese engines share the same 209cc block and cooling system design, making this kit cross-compatible across all listed models. \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-start=\"1796\" data-end=\"1799\"\u003e\n\u003ch2 data-start=\"1801\" data-end=\"1838\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1804\" data-end=\"1836\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1839\" data-end=\"1946\"\u003eFitment is based on engine serial number and production range. Mercury models must be \u003cstrong data-start=\"1925\" data-end=\"1945\"\u003eR042475 or newer\u003c\/strong\u003e.\u003c\/p\u003e\n\u003cp data-start=\"1948\" data-end=\"2072\"\u003e⚠️ Always confirm fitment using your engine serial number before ordering, especially for early or transitional model years.\u003c\/p\u003e\n\u003chr data-start=\"2074\" data-end=\"2077\"\u003e\n\u003ch2 data-start=\"2079\" data-end=\"2118\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2082\" data-end=\"2118\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2119\" data-end=\"2164\"\u003eReplace the water pump kit if you experience:\u003c\/p\u003e\n\u003cul data-start=\"2165\" data-end=\"2364\"\u003e\n\u003cli data-start=\"2165\" data-end=\"2199\"\u003eWeak or no telltale (pee stream)\u003c\/li\u003e\n\u003cli data-start=\"2200\" data-end=\"2227\"\u003eEngine overheating alarms\u003c\/li\u003e\n\u003cli data-start=\"2228\" data-end=\"2264\"\u003eReduced cooling efficiency at idle\u003c\/li\u003e\n\u003cli data-start=\"2265\" data-end=\"2322\"\u003eImpeller wear or deformation (common every 2–3 seasons)\u003c\/li\u003e\n\u003cli data-start=\"2323\" data-end=\"2364\"\u003eSaltwater corrosion inside pump housing\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2366\" data-end=\"2453\"\u003eRoutine service interval: \u003cstrong data-start=\"2392\" data-end=\"2423\"\u003eevery 100 hours or annually\u003c\/strong\u003e (especially in saltwater use)\u003c\/p\u003e\n\u003chr data-start=\"2455\" data-end=\"2458\"\u003e\n\u003ch2 data-start=\"2460\" data-end=\"2485\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2463\" data-end=\"2485\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2486\" data-end=\"2737\"\u003e\n\u003cli data-start=\"2486\" data-end=\"2532\"\u003eInstall with marine grease on impeller vanes\u003c\/li\u003e\n\u003cli data-start=\"2533\" data-end=\"2592\"\u003eEnsure correct impeller rotation direction during install\u003c\/li\u003e\n\u003cli data-start=\"2593\" data-end=\"2657\"\u003eInspect housing and wear plate for scoring (replace if needed)\u003c\/li\u003e\n\u003cli data-start=\"2658\" data-end=\"2688\"\u003eTorque fasteners to OEM spec\u003c\/li\u003e\n\u003cli data-start=\"2689\" data-end=\"2737\"\u003ePrime system with water before initial startup\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2739\" data-end=\"2815\"\u003eProfessional installation recommended if unfamiliar with lower unit service.\u003c\/p\u003e\n\u003chr data-start=\"2817\" data-end=\"2820\"\u003e\n\u003ch2 data-start=\"2822\" data-end=\"2864\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2825\" data-end=\"2864\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2865\" data-end=\"2892\"\u003e\u003cstrong data-start=\"2865\" data-end=\"2892\"\u003eOEM \/ Cross References:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-start=\"2893\" data-end=\"3050\"\u003e\n\u003cli data-start=\"2893\" data-end=\"2927\"\u003eMercury Marine: \u003cstrong data-start=\"2911\" data-end=\"2927\"\u003e46-803750A03\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2928\" data-end=\"2987\"\u003eNissan \/ Tohatsu: \u003cstrong data-start=\"2948\" data-end=\"2963\"\u003e3B2-87322-0\u003c\/strong\u003e, 3B2873221M, 3B2873222M\u003c\/li\u003e\n\u003cli data-start=\"2988\" data-end=\"3050\"\u003eMallory: \u003cstrong data-start=\"2999\" data-end=\"3010\"\u003e9-48317\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"3052\" data-end=\"3055\"\u003e\n\u003ch2 data-start=\"3057\" data-end=\"3074\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"3060\" data-end=\"3072\"\u003eShipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"3075\" data-end=\"3140\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564081545252,"sku":"18-48317","price":86.0,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/f11c961c-3d3c-47c4-aa2a-ce6f7e91b4ef.png?v=1774149650","url":"https:\/\/marisolmarine.com\/products\/sierra-marine-water-pump-kit-18-48317","provider":"Marisol Marine Company","version":"1.0","type":"link"}