{"product_id":"impeller-kit-fits-westerbeke-marine-generators-3-3-15-0kw-replaces-034440-34440-sierra-23-3307","title":"Impeller Kit – Fits Westerbeke Marine Generators 3.3-15.0kW (Replaces 034440, 34440, Sierra 23-3307)","description":"\u003cstyle\u003e\n  \/* Outer container allows horizontal scrolling (with iOS momentum) *\/\n  .ss-table-wrap { overflow-x:auto; -webkit-overflow-scrolling:touch; }\n\n  \/* Base table styles *\/\n  table.ss-table { width:100%; border-collapse:collapse; min-width:640px; }\n  table.ss-table th, table.ss-table td {\n    padding:10px 12px; border:1px solid #e5e7eb; text-align:left; vertical-align:top;\n  }\n\n  \/* Key: prevent wrapping, word breaks, and vertical text in headers *\/\n  table.ss-table th {\n    white-space:nowrap;       \/* Do not wrap *\/\n    word-break:normal;        \/* Don’t break words *\/\n    letter-spacing:normal;    \/* Prevent theme styles from stretching letters *\/\n    font-weight:600;\n    background:#f8fafc;\n  }\n\n  \/* Small screen optimization *\/\n  @media (max-width:480px){\n    table.ss-table th, table.ss-table td { padding:8px 10px; font-size:14px; }\n  }\n\u003c\/style\u003e\n\u003csection\u003e\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eImpeller Kit – Fits Westerbeke Marine Generators 3.3-15.0kW (Replaces 034440, 34440)\u003c\/strong\u003e is engineered for a precise fit on Westerbeke marine generators from 3.3kW to 15.0kW (50\/60Hz) that utilize the 33636 sea water pump. Critically, it is compatible only with pumps that have an irregular-shaped cover and were manufactured prior to March 2004.\u003c\/p\u003e\n\u003cp\u003eIt serves as a direct replacement for Westerbeke part numbers 034440 and 34440, as well as Sierra 23-3307.\u003c\/p\u003e\n\u003cul\u003e\n\u003cli\u003eDesigned for raw water pump installations in marine environments.\u003c\/li\u003e\n\u003cli\u003eThe neoprene impeller is built for durability and efficient water flow.\u003c\/li\u003e\n\u003cli\u003eKit includes the impeller, gasket, and mounting screws for a complete service.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003ePart Number Matrix\u003c\/h2\u003e\n\u003cp\u003eUse this matrix to confirm equivalent references across OEM and aftermarket brands.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Part Number Matrix\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003ePart Number\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWesterbeke\u003c\/td\u003e\n        \u003ctd\u003e034440\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eWesterbeke\u003c\/td\u003e\n        \u003ctd\u003e34440\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eSierra\u003c\/td\u003e\n        \u003ctd\u003e23-3307\u003c\/td\u003e\n      \u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eEngine \u0026amp; Model Compatibility\u003c\/h2\u003e\n\u003cp\u003eConfirm your engine model and year in the table below. This part is specific to models equipped with the pre-March 2004 sea water pump 33636 (irregular cover).\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Westerbeke Marine Generator Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated kW\u003c\/th\u003e\n        \u003cth\u003eFrequency\u003c\/th\u003e\n        \u003cth\u003eYears\u003c\/th\u003e\n        \u003cth\u003eOEM Part No.\u003c\/th\u003e\n        \u003cth\u003eNotes\u003c\/th\u003e\n      \u003c\/tr\u003e\n    \u003c\/thead\u003e\n    \u003ctbody\u003e\n      \u003ctr\u003e\n\u003ctd\u003e3.3 WMD\u003c\/td\u003e\n\u003ctd\u003e3.3kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e4.0 BCD\u003c\/td\u003e\n\u003ctd\u003e4.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e4.0 BCD\u003c\/td\u003e\n\u003ctd\u003e4.0kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e4.0 BCDA\u003c\/td\u003e\n\u003ctd\u003e4.0kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e4.0 BCDB\u003c\/td\u003e\n\u003ctd\u003e4.0kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e4.4 BCD\u003c\/td\u003e\n\u003ctd\u003e4.4kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e4.4 WMD\u003c\/td\u003e\n\u003ctd\u003e4.4kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e4.5 BCD\u003c\/td\u003e\n\u003ctd\u003e4.5kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e5.0 BCD\u003c\/td\u003e\n\u003ctd\u003e5.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e5.0 BCDA\u003c\/td\u003e\n\u003ctd\u003e5.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e5.0 BCDB\u003c\/td\u003e\n\u003ctd\u003e5.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e5.7 BTD\u003c\/td\u003e\n\u003ctd\u003e5.7kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e5.8 WMD\u003c\/td\u003e\n\u003ctd\u003e5.8kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e6.0 BTD\u003c\/td\u003e\n\u003ctd\u003e6.0kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e6.0 BTDA\u003c\/td\u003e\n\u003ctd\u003e6.0kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e6.0 WMD\u003c\/td\u003e\n\u003ctd\u003e6.0kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e7.5 BTD\u003c\/td\u003e\n\u003ctd\u003e7.5kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e7.5 BTDA\u003c\/td\u003e\n\u003ctd\u003e7.5kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e7.6 BTD\u003c\/td\u003e\n\u003ctd\u003e7.6kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e7.7 WMD\u003c\/td\u003e\n\u003ctd\u003e7.7kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e8.0 BTD\u003c\/td\u003e\n\u003ctd\u003e8.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e8.0 BTDA\u003c\/td\u003e\n\u003ctd\u003e8.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e8.0 WMD\u003c\/td\u003e\n\u003ctd\u003e8.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e8.3 BTD\u003c\/td\u003e\n\u003ctd\u003e8.3kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e8.3 WMD\u003c\/td\u003e\n\u003ctd\u003e8.3kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e9.4 BTD\u003c\/td\u003e\n\u003ctd\u003e9.4kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e9.4 BTDA\u003c\/td\u003e\n\u003ctd\u003e9.4kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e9.4 BTDB\u003c\/td\u003e\n\u003ctd\u003e9.4kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e9.4 WMD\u003c\/td\u003e\n\u003ctd\u003e9.4kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e10.0 BTD\u003c\/td\u003e\n\u003ctd\u003e10.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e10.0 BTDA\u003c\/td\u003e\n\u003ctd\u003e10.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e11.0 BTD\u003c\/td\u003e\n\u003ctd\u003e11.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e11.0 WMD\u003c\/td\u003e\n\u003ctd\u003e11.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e12.0 BTDC\u003c\/td\u003e\n\u003ctd\u003e12.0kW\u003c\/td\u003e\n\u003ctd\u003e50Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e12.5 BTD\u003c\/td\u003e\n\u003ctd\u003e12.5kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e12.5 BTDA\u003c\/td\u003e\n\u003ctd\u003e12.5kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e12.5 BTDB\u003c\/td\u003e\n\u003ctd\u003e12.5kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e12.5 WMD\u003c\/td\u003e\n\u003ctd\u003e12.5kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n      \u003ctr\u003e\n\u003ctd\u003e15.0 BTDC\u003c\/td\u003e\n\u003ctd\u003e15.0kW\u003c\/td\u003e\n\u003ctd\u003e60Hz\u003c\/td\u003e\n\u003ctd\u003eUp to 2004\u003c\/td\u003e\n\u003ctd\u003e034440\u003c\/td\u003e\n\u003ctd\u003eFor pumps with irregular cover only\u003c\/td\u003e\n\u003c\/tr\u003e\n    \u003c\/tbody\u003e\n  \u003c\/table\u003e\n\u003c\/div\u003e\n\n\u003ch2\u003eTechnical Specs\u003c\/h2\u003e\n\u003cdl\u003e\n  \u003cdt\u003eProduct Type\u003c\/dt\u003e\n\u003cdd\u003eWater Pump Impeller Kit\u003c\/dd\u003e\n  \u003cdt\u003eInstallation\u003c\/dt\u003e\n\u003cdd\u003eRaw Water\/Sea Water Pump\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eNeoprene\u003c\/dd\u003e\n  \u003cdt\u003eDrive Type\u003c\/dt\u003e\n\u003cdd\u003eSlotted Shaft Pin Drive\u003c\/dd\u003e\n  \u003cdt\u003eNumber of Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Height\u003c\/dt\u003e\n\u003cdd\u003e22 mm (0.88 inch)\u003c\/dd\u003e\n  \u003cdt\u003eOverall Diameter\u003c\/dt\u003e\n\u003cdd\u003e50.8 mm (2 inches)\u003c\/dd\u003e\n  \u003cdt\u003eShaft Diameter\u003c\/dt\u003e\n\u003cdd\u003e12 mm (0.47 inch)\u003c\/dd\u003e\n  \u003cdt\u003eHousing Compatibility\u003c\/dt\u003e\n\u003cdd\u003eIrregular Cover Only (Pre-March 2004)\u003c\/dd\u003e\n  \u003cdt\u003ePump Application\u003c\/dt\u003e\n\u003cdd\u003eSea Water Pump Number 33636\u003c\/dd\u003e\n\u003c\/dl\u003e\n\n\u003ch2\u003eWhat’s in the Box\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e1 x Water Pump Impeller (034440)\u003c\/li\u003e\n  \u003cli\u003e1 x Pump Cover Gasket\u003c\/li\u003e\n  \u003cli\u003e\u003cspan style=\"color:#d0021b;\"\u003e2 x SS Hex\/Slot Screws\u003c\/span\u003e\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eThis impeller kit is only for Westerbeke 33636 sea water pumps with an irregular cover, manufactured before March 2004. Do not use on pumps with a round cover and O-ring seal; those require impeller kit 48500. Before installation, shut off the engine and close the seacock. Lubricate the new impeller and the inside of the pump housing with a suitable marine lubricant to prevent damage during initial startup.\u003c\/p\u003e\n\n\u003ch2\u003eTroubleshooting \u0026amp; FAQ\u003c\/h2\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow do I know if this impeller fits my generator?\u003c\/summary\u003e\n  \u003cp\u003eVerify your generator is listed in the compatibility table. Most importantly, check that your sea water pump is model 33636 and has an irregular-shaped cover held on by screws. If your pump cover is round and uses an O-ring, this part will not fit.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between this kit and one for newer models?\u003c\/summary\u003e\n  \u003cp\u003eThis kit is for pre-March 2004 pumps with an \"irregular\" cover. Newer Westerbeke pumps often use a round cover with an O-ring, which requires a different impeller and seal (like kit 48500). The physical dimensions and included gasket are specific to the older pump design.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I replace my water pump impeller?\u003c\/summary\u003e\n  \u003cp\u003eAs a general rule, impellers should be inspected annually and replaced every 1-2 years or every 200-300 hours of operation, whichever comes first. Harsh operating conditions (sandy or silty water) may require more frequent replacement.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat are the signs of a failing impeller?\u003c\/summary\u003e\n  \u003cp\u003eCommon symptoms include engine overheating at idle or low speeds, reduced water flow from the exhaust outlet, and visible cracks or missing blades on the impeller itself upon inspection. A complete failure can cause rapid overheating and serious engine damage.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs the included gasket necessary?\u003c\/summary\u003e\n  \u003cp\u003eYes. The gasket is critical for creating a watertight seal between the pump housing and the irregular cover plate. Never reuse an old gasket, as it may be compressed or cracked, leading to leaks.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eOEM vs. Aftermarket?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). Built to OEM-level specifications with comparable materials. Manufactured in an ISO 9002 facility, batch-inspected for consistency.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eShipping speed \u0026amp; cost?\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit 5–15 days. Standard shipping is free; expedited options appear at checkout where available.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWarranty \u0026amp; returns?\u003c\/summary\u003e\n  \u003cp\u003eCovered by a 1-year warranty against manufacturing defects under normal use. If issues arise, contact support with your order details. Returns are accepted within our standard window (unused \u0026amp; in original condition). See our policy page or reach out for instructions.\u003c\/p\u003e\n\u003c\/details\u003e\n\n\u003ch2\u003eSafety \u0026amp; Important Info\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003eVerify images\/specifications vs your original part. If anything differs—even if your model appears compatible—do not purchase.\u003c\/li\u003e\n  \u003cli\u003eThis is an aftermarket replacement, not an OEM component.\u003c\/li\u003e\n  \u003cli\u003eProfessional installation is recommended for safety and performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eAbout Sea Sierra\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003ePro-Grade Standards — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003eFast Global Fulfillment — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003eManufacturer-Direct Value — Fair pricing without compromising on materials or QC.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717892542779,"sku":"QM-34440","price":19.5,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/QM-34440.png?v=1762937565","url":"https:\/\/seasierra.com\/products\/impeller-kit-fits-westerbeke-marine-generators-3-3-15-0kw-replaces-034440-34440-sierra-23-3307","provider":"SeaSierra","version":"1.0","type":"link"}