{"product_id":"impeller-kit-48500","title":"Westerbeke Impeller Kit 48500 – Raw Water Pump Service Kit","description":"\u003cp data-end=\"559\" data-start=\"245\"\u003eThe \u003cstrong data-end=\"282\" data-start=\"249\"\u003eWesterbeke Impeller Kit 48500\u003c\/strong\u003e is a complete raw water pump service kit designed for Westerbeke marine diesel engines and generators. This kit includes a precision-molded neoprene impeller along with sealing components and hardware to restore proper cooling system performance and ensure reliable operation.\u003c\/p\u003e\n\u003cp data-end=\"888\" data-start=\"561\"\u003eThe impeller is responsible for drawing seawater through the cooling system. Over time, the flexible vanes can wear, harden, or break, reducing water flow and increasing the risk of overheating. Replacing the impeller at recommended intervals helps maintain consistent cooling and protects your engine or generator from damage.\u003c\/p\u003e\n\u003cp data-end=\"1033\" data-start=\"890\"\u003eThis kit is widely used across \u003cstrong data-end=\"966\" data-start=\"921\"\u003eWesterbeke generator and engine platforms\u003c\/strong\u003e, making it a key maintenance item for dependable marine operation.\u003c\/p\u003e\n\u003chr data-end=\"1038\" data-start=\"1035\"\u003e\n\u003ch2 data-end=\"1059\" data-start=\"1040\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1059\" data-start=\"1043\"\u003eKey Features\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-end=\"1340\" data-start=\"1060\"\u003e\n\u003cli data-end=\"1108\" data-start=\"1060\"\u003eComplete raw water pump impeller service kit\u003c\/li\u003e\n\u003cli data-end=\"1156\" data-start=\"1109\"\u003eMarine-grade neoprene impeller construction\u003c\/li\u003e\n\u003cli data-end=\"1193\" data-start=\"1157\"\u003e6-blade flexible impeller design\u003c\/li\u003e\n\u003cli data-end=\"1244\" data-start=\"1194\"\u003eIncludes O-ring, gasket, and mounting hardware\u003c\/li\u003e\n\u003cli data-end=\"1304\" data-start=\"1245\"\u003eMaintains proper raw water flow and cooling performance\u003c\/li\u003e\n\u003cli data-end=\"1340\" data-start=\"1305\"\u003eOEM-equivalent fit and function\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"1345\" data-start=\"1342\"\u003e\n\u003ch2 data-end=\"1374\" data-start=\"1347\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1374\" data-start=\"1350\"\u003eEngine Compatibility\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-end=\"1419\" data-start=\"1376\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1419\" data-start=\"1380\"\u003eWesterbeke Marine Diesel Generators\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"1602\" data-start=\"1420\"\u003e\n\u003cli data-end=\"1431\" data-start=\"1420\"\u003e5.7 BTD\u003c\/li\u003e\n\u003cli data-end=\"1444\" data-start=\"1432\"\u003e6.0 BTDA\u003c\/li\u003e\n\u003cli data-end=\"1463\" data-start=\"1445\"\u003e7.5 BTD \/ BTDA\u003c\/li\u003e\n\u003cli data-end=\"1475\" data-start=\"1464\"\u003e7.6 BTD\u003c\/li\u003e\n\u003cli data-end=\"1488\" data-start=\"1476\"\u003e8.0 BTDA\u003c\/li\u003e\n\u003cli data-end=\"1500\" data-start=\"1489\"\u003e8.3 BTD\u003c\/li\u003e\n\u003cli data-end=\"1520\" data-start=\"1501\"\u003e9.4 BTDA \/ BTDB\u003c\/li\u003e\n\u003cli data-end=\"1540\" data-start=\"1521\"\u003e10.0 BTD \/ BTDA\u003c\/li\u003e\n\u003cli data-end=\"1553\" data-start=\"1541\"\u003e11.0 BTD\u003c\/li\u003e\n\u003cli data-end=\"1567\" data-start=\"1554\"\u003e12.0 BTDC\u003c\/li\u003e\n\u003cli data-end=\"1588\" data-start=\"1568\"\u003e12.5 BTDA \/ BTDB\u003c\/li\u003e\n\u003cli data-end=\"1602\" data-start=\"1589\"\u003e15.0 BTDC\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003ch3 data-end=\"1644\" data-start=\"1604\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1644\" data-start=\"1608\"\u003eWesterbeke Marine Diesel Engines\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"1759\" data-start=\"1645\"\u003e\n\u003cli data-end=\"1656\" data-start=\"1645\"\u003e12C Two\u003c\/li\u003e\n\u003cli data-end=\"1668\" data-start=\"1657\"\u003e20B Two\u003c\/li\u003e\n\u003cli data-end=\"1682\" data-start=\"1669\"\u003e30B Three\u003c\/li\u003e\n\u003cli data-end=\"1708\" data-start=\"1683\"\u003e35C \/ 35D \/ 35E Three\u003c\/li\u003e\n\u003cli data-end=\"1721\" data-start=\"1709\"\u003e38B Four\u003c\/li\u003e\n\u003cli data-end=\"1734\" data-start=\"1722\"\u003e42B Four\u003c\/li\u003e\n\u003cli data-end=\"1759\" data-start=\"1735\"\u003e44A \/ 44B \/ 44C Four\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"1860\" data-start=\"1761\"\u003e➡️ Fits engines using compatible Westerbeke raw water pumps \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\u003c\/p\u003e\n\u003chr data-end=\"1865\" data-start=\"1862\"\u003e\n\u003ch2 data-end=\"1904\" data-start=\"1867\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"1902\" data-start=\"1870\"\u003eSerial Number Fitment Notice\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"1924\" data-start=\"1905\"\u003eFitment depends on:\u003c\/p\u003e\n\u003cul data-end=\"1987\" data-start=\"1925\"\u003e\n\u003cli data-end=\"1939\" data-start=\"1925\"\u003ePump model\u003c\/li\u003e\n\u003cli data-end=\"1965\" data-start=\"1940\"\u003eEngine model and year\u003c\/li\u003e\n\u003cli data-end=\"1987\" data-start=\"1966\"\u003ePump cover design\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2021\" data-start=\"1989\"\u003e⚠️ \u003cstrong data-end=\"2019\" data-start=\"1992\"\u003eImportant Fitment Note:\u003c\/strong\u003e\u003c\/p\u003e\n\u003cul data-end=\"2238\" data-start=\"2022\"\u003e\n\u003cli data-end=\"2074\" data-start=\"2022\"\u003eFits pumps \u003cstrong data-end=\"2072\" data-start=\"2035\"\u003e48080 \/ 048080 and 37431 \/ 037431\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2138\" data-start=\"2075\"\u003eDesigned for \u003cstrong data-end=\"2136\" data-start=\"2090\"\u003enew-style round 6-bolt cover pumps (2004+)\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"2238\" data-start=\"2139\"\u003e\n\u003cstrong data-end=\"2198\" data-start=\"2141\"\u003eWill NOT fit older pump model 33636 (scalloped cover)\u003c\/strong\u003e \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2335\" data-start=\"2240\"\u003eAlways confirm compatibility using your \u003cstrong data-end=\"2318\" data-start=\"2280\"\u003epump model or engine serial number\u003c\/strong\u003e before ordering.\u003c\/p\u003e\n\u003chr data-end=\"2340\" data-start=\"2337\"\u003e\n\u003ch2 data-end=\"2372\" data-start=\"2342\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2372\" data-start=\"2345\"\u003eImpeller Specifications\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2538\" data-start=\"2373\"\u003e\n\u003cli data-end=\"2402\" data-start=\"2373\"\u003eDiameter: ~2.0\" (50.8 mm)\u003c\/li\u003e\n\u003cli data-end=\"2420\" data-start=\"2403\"\u003eWidth: ~22 mm\u003c\/li\u003e\n\u003cli data-end=\"2451\" data-start=\"2421\"\u003eShaft: Slotted \/ pin drive\u003c\/li\u003e\n\u003cli data-end=\"2470\" data-start=\"2452\"\u003eBlade Count: 6\u003c\/li\u003e\n\u003cli data-end=\"2538\" data-start=\"2471\"\u003eMaterial: Neoprene rubber \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2543\" data-start=\"2540\"\u003e\n\u003ch2 data-end=\"2578\" data-start=\"2545\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2578\" data-start=\"2548\"\u003eWhat’s Included in the Kit\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-end=\"2682\" data-start=\"2579\"\u003e\n\u003cli data-end=\"2591\" data-start=\"2579\"\u003eImpeller\u003c\/li\u003e\n\u003cli data-end=\"2602\" data-start=\"2592\"\u003eO-ring\u003c\/li\u003e\n\u003cli data-end=\"2614\" data-start=\"2603\"\u003eGaskets\u003c\/li\u003e\n\u003cli data-end=\"2682\" data-start=\"2615\"\u003eMounting screw \/ hardware \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"2687\" data-start=\"2684\"\u003e\n\u003ch2 data-end=\"2728\" data-start=\"2689\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"2728\" data-start=\"2692\"\u003eWhen This Part Needs Replacement\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"2764\" data-start=\"2729\"\u003eReplace the impeller if you notice:\u003c\/p\u003e\n\u003cul data-end=\"2904\" data-start=\"2765\"\u003e\n\u003cli data-end=\"2801\" data-start=\"2765\"\u003eReduced or no cooling water flow\u003c\/li\u003e\n\u003cli data-end=\"2837\" data-start=\"2802\"\u003eGenerator or engine overheating\u003c\/li\u003e\n\u003cli data-end=\"2874\" data-start=\"2838\"\u003eCracked, missing, or stiff vanes\u003c\/li\u003e\n\u003cli data-end=\"2904\" data-start=\"2875\"\u003eReduced output under load\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003cp data-end=\"2971\" data-start=\"2906\"\u003eRecommended service interval: \u003cstrong data-end=\"2971\" data-start=\"2936\"\u003eevery 100–200 hours or annually\u003c\/strong\u003e\u003c\/p\u003e\n\u003chr data-end=\"2976\" data-start=\"2973\"\u003e\n\u003ch2 data-end=\"3003\" data-start=\"2978\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"3003\" data-start=\"2981\"\u003eInstallation Notes\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cul data-end=\"3229\" data-start=\"3004\"\u003e\n\u003cli data-end=\"3046\" data-start=\"3004\"\u003eLubricate impeller before installation\u003c\/li\u003e\n\u003cli data-end=\"3086\" data-start=\"3047\"\u003eInstall with correct vane direction\u003c\/li\u003e\n\u003cli data-end=\"3122\" data-start=\"3087\"\u003eReplace all gaskets and O-rings\u003c\/li\u003e\n\u003cli data-end=\"3165\" data-start=\"3123\"\u003eInspect pump housing and wear surfaces\u003c\/li\u003e\n\u003cli data-end=\"3229\" data-start=\"3166\"\u003eVerify pump style (round vs scalloped cover) before install\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3234\" data-start=\"3231\"\u003e\n\u003ch2 data-end=\"3278\" data-start=\"3236\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"3278\" data-start=\"3239\"\u003eAlternate \/ Superseded Part Numbers\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003ch3 data-end=\"3308\" data-start=\"3280\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"3308\" data-start=\"3284\"\u003eOEM Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"3340\" data-start=\"3309\"\u003e\n\u003cli data-end=\"3340\" data-start=\"3309\"\u003eWesterbeke: \u003cstrong data-end=\"3340\" data-start=\"3323\"\u003e48500, 048500\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3345\" data-start=\"3342\"\u003e\n\u003ch3 data-end=\"3383\" data-start=\"3347\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"3383\" data-start=\"3351\"\u003eAftermarket Cross References\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h3\u003e\n\u003cul data-end=\"3516\" data-start=\"3384\"\u003e\n\u003cli data-end=\"3416\" data-start=\"3384\"\u003eStayCoolPumps: \u003cstrong data-end=\"3414\" data-start=\"3401\"\u003eSCP-48500\u003c\/strong\u003e\n\u003c\/li\u003e\n\u003cli data-end=\"3516\" data-start=\"3417\"\u003eVarious aftermarket equivalents (QuickMarine, SOXA, etc.) \u003cspan data-state=\"closed\" class=\"\"\u003e\u003c\/span\u003e\n\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003chr data-end=\"3521\" data-start=\"3518\"\u003e\n\u003ch2 data-end=\"3540\" data-start=\"3523\"\u003e\u003cspan role=\"text\"\u003e\u003cstrong data-end=\"3538\" data-start=\"3526\"\u003eShipping\u003c\/strong\u003e\u003c\/span\u003e\u003c\/h2\u003e\n\u003cp data-end=\"3606\" data-start=\"3541\"\u003eShipping: Ships same or next day for fast Canada wide shipping. ⚓\u003c\/p\u003e\n\u003chr data-end=\"3611\" data-start=\"3608\"\u003e\n\u003ch3 data-end=\"3640\" data-start=\"3613\"\u003e💡 Parts Desk Insight\u003c\/h3\u003e\n\u003cp data-end=\"3810\" data-start=\"3641\"\u003eThis is a very common Westerbeke generator impeller—but the \u003cstrong data-end=\"3729\" data-start=\"3701\"\u003epump cover style matters\u003c\/strong\u003e. The newer round 6-bolt pumps and older scalloped pumps use different impellers.\u003c\/p\u003e\n\u003cp data-end=\"3874\" data-start=\"3812\"\u003eQuick visual check before ordering saves a lot of headaches 👍\u003c\/p\u003e","brand":"MPS","offers":[{"title":"Default Title","offer_id":43563947819044,"sku":"48500","price":78.45,"currency_code":"CAD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0743\/5799\/7604\/files\/72fde5bd-94a7-44b8-998b-f7225f7ab6a9.png?v=1774234144","url":"https:\/\/marisolmarine.com\/products\/impeller-kit-48500","provider":"Marisol Marine Company","version":"1.0","type":"link"}