{"product_id":"sierra-marine-water-pump-kit-18-3150","title":"Sierra Marine Water Pump Kit 18-3150 – MerCruiser Bravo \/ TRS Complete Cooling System Rebuild","description":"\u003cp data-start=\"262\" data-end=\"570\"\u003eThe \u003cstrong data-start=\"266\" data-end=\"299\"\u003eSierra 18-3150 Water Pump Kit\u003c\/strong\u003e is a complete seawater pump rebuild kit designed for \u003cstrong data-start=\"353\" data-end=\"442\"\u003eMerCruiser Bravo and TRS sterndrives and inboard engines with one-piece pump housings\u003c\/strong\u003e. This kit includes all critical components needed to fully restore raw water pump performance and ensure proper engine cooling.\u003c\/p\u003e\n\u003cp data-start=\"572\" data-end=\"777\"\u003eBuilt to meet or exceed OEM specifications, this kit features a new one-piece housing, impeller, wear plate, seals, and hardware—providing a complete solution for servicing worn or failing cooling systems.\u003c\/p\u003e\n\u003cp data-start=\"779\" data-end=\"932\"\u003eReplacing the entire pump assembly ensures optimal water flow, improved reliability, and protection against overheating in demanding marine environments.\u003c\/p\u003e\n\u003chr data-start=\"934\" data-end=\"937\"\u003e\n\u003ch2 data-start=\"939\" data-end=\"958\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"942\" data-end=\"958\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"959\" data-end=\"1268\"\u003e\n\u003cli data-start=\"959\" data-end=\"998\"\u003eComplete raw water pump rebuild kit\u003c\/li\u003e\n\u003cli data-start=\"999\" data-end=\"1064\"\u003eIncludes housing, impeller, wear plate, O-rings, and hardware\u003c\/li\u003e\n\u003cli data-start=\"1065\" data-end=\"1114\"\u003eDesigned for one-piece seawater pump housings\u003c\/li\u003e\n\u003cli data-start=\"1115\" data-end=\"1159\"\u003eRestores full cooling system performance\u003c\/li\u003e\n\u003cli data-start=\"1160\" data-end=\"1195\"\u003eOEM-equivalent fit and function\u003c\/li\u003e\n\u003cli data-start=\"1196\" data-end=\"1231\"\u003eDurable marine-grade components\u003c\/li\u003e\n\u003cli data-start=\"1232\" data-end=\"1268\"\u003eSierra limited lifetime warranty\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1270\" data-end=\"1273\"\u003e\n\u003ch2 data-start=\"1275\" data-end=\"1302\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1278\" data-end=\"1302\"\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"1304\" data-end=\"1345\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1308\" data-end=\"1345\"\u003eMerCruiser Sterndrives \u0026amp; Inboards\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"1346\" data-end=\"1437\"\u003e\n\u003cli data-start=\"1346\" data-end=\"1357\"\u003eBravo I\u003c\/li\u003e\n\u003cli data-start=\"1358\" data-end=\"1370\"\u003eBravo II\u003c\/li\u003e\n\u003cli data-start=\"1371\" data-end=\"1384\"\u003eBravo III\u003c\/li\u003e\n\u003cli data-start=\"1385\" data-end=\"1399\"\u003eTRS drives\u003c\/li\u003e\n\u003cli data-start=\"1400\" data-end=\"1437\"\u003eSelect MerCruiser inboard engines\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1439\" data-end=\"1506\"\u003e➡️ Designed specifically for \u003cstrong data-start=\"1468\" data-end=\"1506\"\u003e1-piece water pump housing systems\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"1508\" data-end=\"1511\"\u003e\n\u003ch2 data-start=\"1513\" data-end=\"1550\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1516\" data-end=\"1548\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1551\" data-end=\"1570\"\u003eFitment depends on:\u003c\/p\u003e\n\u003cul data-start=\"1571\" data-end=\"1669\"\u003e\n\u003cli data-start=\"1571\" data-end=\"1599\"\u003eDrive type (Bravo \/ TRS)\u003c\/li\u003e\n\u003cli data-start=\"1600\" data-end=\"1644\"\u003ePump housing design (1-piece vs 2-piece)\u003c\/li\u003e\n\u003cli data-start=\"1645\" data-end=\"1669\"\u003eEngine serial number\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"1671\" data-end=\"1695\"\u003e⚠️ Always confirm using:\u003c\/p\u003e\n\u003cul data-start=\"1696\" data-end=\"1760\"\u003e\n\u003cli data-start=\"1696\" data-end=\"1720\"\u003eEngine serial number\u003c\/li\u003e\n\u003cli data-start=\"1721\" data-end=\"1760\"\u003eOEM part number match (\u003cstrong data-start=\"1746\" data-end=\"1757\"\u003e18-3150\u003c\/strong\u003e)\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"1762\" data-end=\"1765\"\u003e\n\u003ch2 data-start=\"1767\" data-end=\"1806\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"1770\" data-end=\"1806\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"1807\" data-end=\"1848\"\u003eReplace the water pump kit if you notice:\u003c\/p\u003e\n\u003cul data-start=\"1849\" data-end=\"1998\"\u003e\n\u003cli data-start=\"1849\" data-end=\"1871\"\u003eEngine overheating\u003c\/li\u003e\n\u003cli data-start=\"1872\" data-end=\"1907\"\u003eWeak or inconsistent water flow\u003c\/li\u003e\n\u003cli data-start=\"1908\" data-end=\"1935\"\u003eImpeller damage or wear\u003c\/li\u003e\n\u003cli data-start=\"1936\" data-end=\"1963\"\u003eLeaks from pump housing\u003c\/li\u003e\n\u003cli data-start=\"1964\" data-end=\"1998\"\u003eScheduled maintenance interval\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-start=\"2000\" data-end=\"2092\"\u003eRecommended service interval: \u003cstrong data-start=\"2030\" data-end=\"2092\"\u003eevery 100 hours or annually (impeller), full kit as needed\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-start=\"2094\" data-end=\"2097\"\u003e\n\u003ch2 data-start=\"2099\" data-end=\"2124\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2102\" data-end=\"2124\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2125\" data-end=\"2360\"\u003e\n\u003cli data-start=\"2125\" data-end=\"2182\"\u003eEnsure correct housing type (1-piece system required)\u003c\/li\u003e\n\u003cli data-start=\"2183\" data-end=\"2225\"\u003eLubricate impeller during installation\u003c\/li\u003e\n\u003cli data-start=\"2226\" data-end=\"2268\"\u003eReplace all included seals and O-rings\u003c\/li\u003e\n\u003cli data-start=\"2269\" data-end=\"2312\"\u003eInspect pump cavity and mating surfaces\u003c\/li\u003e\n\u003cli data-start=\"2313\" data-end=\"2360\"\u003eTorque bolts to manufacturer specifications\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2362\" data-end=\"2365\"\u003e\n\u003ch2 data-start=\"2367\" data-end=\"2409\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2370\" data-end=\"2409\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-start=\"2411\" data-end=\"2439\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2415\" data-end=\"2439\"\u003eOEM Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2440\" data-end=\"2497\"\u003e\n\u003cli data-start=\"2440\" data-end=\"2497\"\u003eMercury \/ MerCruiser: \u003cstrong data-start=\"2464\" data-end=\"2480\"\u003e46-807151A14\u003c\/strong\u003e, \u003cstrong data-start=\"2482\" data-end=\"2497\"\u003e46-807151A7\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2499\" data-end=\"2502\"\u003e\n\u003ch3 data-start=\"2504\" data-end=\"2540\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2508\" data-end=\"2540\"\u003eAftermarket Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-start=\"2541\" data-end=\"2646\"\u003e\n\u003cli data-start=\"2541\" data-end=\"2564\"\u003eSierra: \u003cstrong data-start=\"2551\" data-end=\"2562\"\u003e18-3150\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2565\" data-end=\"2583\"\u003eGLM: \u003cstrong data-start=\"2572\" data-end=\"2581\"\u003e12088\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-start=\"2584\" data-end=\"2646\"\u003eMallory: \u003cstrong data-start=\"2595\" data-end=\"2606\"\u003e9-48350\u003c\/strong\u003e \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2648\" data-end=\"2651\"\u003e\n\u003ch2 data-start=\"2653\" data-end=\"2686\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2656\" data-end=\"2686\"\u003eWhat’s Included in the Kit\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-start=\"2687\" data-end=\"2872\"\u003e\n\u003cli data-start=\"2687\" data-end=\"2721\"\u003eOne-piece plastic pump housing\u003c\/li\u003e\n\u003cli data-start=\"2722\" data-end=\"2751\"\u003eImpeller (Sierra 18-3087)\u003c\/li\u003e\n\u003cli data-start=\"2752\" data-end=\"2782\"\u003eStainless steel wear plate\u003c\/li\u003e\n\u003cli data-start=\"2783\" data-end=\"2804\"\u003eO-rings and seals\u003c\/li\u003e\n\u003cli data-start=\"2805\" data-end=\"2872\"\u003eMounting hardware (bolts) \u003cspan class=\"\" data-state=\"closed\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-start=\"2874\" data-end=\"2877\"\u003e\n\u003ch2 data-start=\"2879\" data-end=\"2896\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-start=\"2882\" data-end=\"2894\"\u003eShipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-start=\"2897\" data-end=\"2962\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e\n\u003chr data-start=\"2964\" data-end=\"2967\"\u003e\n\u003ch3 data-start=\"2969\" data-end=\"2996\"\u003e💡 Parts Desk Insight\u003c\/h3\u003e\n\u003cp data-start=\"2997\" data-end=\"3154\"\u003eIf your Bravo drive pump hasn’t been rebuilt in a few seasons, it’s not just the impeller—you’re usually dealing with worn housings and sealing surfaces too.\u003c\/p\u003e\n\u003cp data-start=\"3156\" data-end=\"3269\"\u003eDoing the full kit instead of just the impeller restores proper water pressure and can prevent repeat failures 👍\u003c\/p\u003e","brand":"WEST","offers":[{"title":"Default Title","offer_id":43564076531748,"sku":"18-3150","price":171.18,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/32426a7c-83e0-49d8-ab5f-3c40f478843c.png?v=1774224350","url":"https:\/\/marisolmarine.com\/products\/sierra-marine-water-pump-kit-18-3150","provider":"Marisol Marine Company","version":"1.0","type":"link"}