{"product_id":"water-pump-impeller-kit-fits-onan-4-0-kw-6-5-kw-7-5-kw-generator-replaces-131-0160-131-0165-131-0267","title":"Water Pump Impeller Kit – Fits Onan 4.0 KW, 6.5 KW, 7.5 KW Generator (Replaces 131-0160, 131-0165, 131-0267)","description":"\u003csection\u003e\n\u003c!-- 🔧 Table Styles (include only once per page) --\u003e\n\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\n\u003ch2\u003eProduct Details\u003c\/h2\u003e\n\u003cp\u003eThis \u003cstrong\u003eWater Pump Impeller Kit\u003c\/strong\u003e is engineered for Onan marine generators, including MCCK 4.0 KW, MCCK 6.5 KW, MDJE 7.5 KW, MDJA, MDJB, and MDJC models that are equipped with a 3-screw cover water pump. It provides a reliable solution for maintaining optimal engine cooling performance.\u003c\/p\u003e\n\u003cp\u003eThis kit serves as a direct replacement for Onan part numbers 131-0160, 131-0165, and 131-0267, as well as Globe Marine 1014.\u003c\/p\u003e\n\u003cul\u003e\n  \u003cli\u003eEngineered specifically as a replacement for 3-screw cover water pumps.\u003c\/li\u003e\n  \u003cli\u003eConstructed from durable CR (Chloroprene Rubber) for longevity in marine environments.\u003c\/li\u003e\n  \u003cli\u003eIncludes one impeller and one gasket for a complete installation.\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 suppliers.\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\u003eOnan\u003c\/td\u003e\n        \u003ctd\u003e131-0160, 131-0165, 131-0267\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eGlobe Marine\u003c\/td\u003e\n        \u003ctd\u003e1014\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 in the table below to ensure accurate fitment.\u003c\/p\u003e\n\u003cp\u003e\u003cb\u003eOnan Marine Generators:\u003c\/b\u003e Designed for models using pump casting #P2563. Check your pump housing to verify compatibility, as this impeller will not fit 4-screw cover pumps.\u003c\/p\u003e\n\u003cdiv class=\"ss-table-wrap\"\u003e\n  \u003ctable class=\"ss-table\" aria-label=\"Engine \u0026amp; Model Compatibility\"\u003e\n    \u003cthead\u003e\n      \u003ctr\u003e\n        \u003cth\u003eBrand\u003c\/th\u003e\n        \u003cth\u003eModel\u003c\/th\u003e\n        \u003cth\u003eRated KW\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\u003eOnan\u003c\/td\u003e\n        \u003ctd\u003eMCCK\u003c\/td\u003e\n        \u003ctd\u003e4.0\u003c\/td\u003e\n        \u003ctd\u003e131-0165, 131-0267\u003c\/td\u003e\n        \u003ctd\u003ePump Casting #P2563\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOnan\u003c\/td\u003e\n        \u003ctd\u003eMCCK\u003c\/td\u003e\n        \u003ctd\u003e6.5\u003c\/td\u003e\n        \u003ctd\u003e131-0165, 131-0267\u003c\/td\u003e\n        \u003ctd\u003ePump Casting #P2563\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOnan\u003c\/td\u003e\n        \u003ctd\u003eMDJE\u003c\/td\u003e\n        \u003ctd\u003e7.5\u003c\/td\u003e\n        \u003ctd\u003e131-0165, 131-0267\u003c\/td\u003e\n        \u003ctd\u003ePump Casting #P2563\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOnan\u003c\/td\u003e\n        \u003ctd\u003eMDJA\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e131-0165, 131-0267\u003c\/td\u003e\n        \u003ctd\u003ePump Casting #P2563\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOnan\u003c\/td\u003e\n        \u003ctd\u003eMDJB\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e131-0165, 131-0267\u003c\/td\u003e\n        \u003ctd\u003ePump Casting #P2563\u003c\/td\u003e\n      \u003c\/tr\u003e\n      \u003ctr\u003e\n        \u003ctd\u003eOnan\u003c\/td\u003e\n        \u003ctd\u003eMDJC\u003c\/td\u003e\n        \u003ctd\u003e\u003c\/td\u003e\n        \u003ctd\u003e131-0165, 131-0267\u003c\/td\u003e\n        \u003ctd\u003ePump Casting #P2563\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\u003eReplacement for 3-screw cover water pumps only\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Material\u003c\/dt\u003e\n\u003cdd\u003eCR (Chloroprene Rubber) with Brass Insert\u003c\/dd\u003e\n  \u003cdt\u003eShaft Type\u003c\/dt\u003e\n\u003cdd\u003eD Shaft\u003c\/dd\u003e\n  \u003cdt\u003eImpeller Blades\u003c\/dt\u003e\n\u003cdd\u003e6\u003c\/dd\u003e\n  \u003cdt\u003eDimensions\u003c\/dt\u003e\n\u003cdd\u003eShaft Width: 5\/16\" (8mm), Impeller Width: 3\/4\" (19mm), Overall Diameter: 1-9\/16\" (39mm)\u003c\/dd\u003e\n  \u003cdt\u003eWeight\u003c\/dt\u003e\n\u003cdd\u003e1.76 ounces (49.9g)\u003c\/dd\u003e\n  \u003cdt\u003eCompatibility\u003c\/dt\u003e\n\u003cdd\u003eOnan Marine Generators with 3-screw cover water pumps\u003c\/dd\u003e\n  \u003cdt\u003eNotes\u003c\/dt\u003e\n\u003cdd\u003eNot compatible with 4-screw cover model pumps\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 Impeller (replaces 131-0160)\u003c\/li\u003e\n  \u003cli\u003e1 x Gasket (replaces 131-0161)\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003ch2\u003eInstallation Notes\u003c\/h2\u003e\n\u003cp\u003eFor a safe installation, first disconnect the generator's power supply and close the raw water intake seacock. Next, remove the three screws on the water pump cover plate. Carefully extract the old impeller, taking note of the blade direction. Lubricate the new impeller with a water-based lubricant, install it with a twisting motion in the direction of engine rotation, and replace the cover with the new gasket. Open the seacock and check for leaks after starting the generator.\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 Onan generator?\u003c\/summary\u003e\n  \u003cp\u003eThis impeller is designed for Onan generators with a 3-screw water pump cover. Please verify your pump model and compare it to the compatible models listed (MCCK, MDJA, MDJB, MDJC, MDJE). It is not compatible with 4-screw cover pumps.\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 the generator overheating, reduced water flow from the exhaust port, and visible signs of wear such as cracked, stiff, or missing impeller blades upon inspection.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow often should I replace the impeller?\u003c\/summary\u003e\n  \u003cp\u003eFor preventative maintenance, it is recommended to inspect the impeller annually and replace it every one to two years, depending on operating hours, water conditions (salt vs. fresh), and periods of disuse.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eIs the pump cover gasket included?\u003c\/summary\u003e\n  \u003cp\u003eYes, a new gasket (equivalent to Onan 131-0161) is included in the kit to ensure a proper seal upon reassembly.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the difference between an OEM part and a Sea Sierra aftermarket part?\u003c\/summary\u003e\n  \u003cp\u003eThis listing is an aftermarket replacement (not OEM). It is built to OEM-level specifications with comparable materials and manufactured in an ISO 9002 facility, where it is batch-inspected for consistency and quality.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eHow fast is shipping?\u003c\/summary\u003e\n  \u003cp\u003eWe ship worldwide quickly—typical transit is 5–15 days. Standard shipping is free for most orders, and expedited options are available at checkout where applicable.\u003c\/p\u003e\n\u003c\/details\u003e\n\u003cdetails\u003e\n  \u003csummary\u003eWhat is the warranty and return policy?\u003c\/summary\u003e\n  \u003cp\u003eThis product is covered by a 1-year warranty against manufacturing defects under normal use. If you encounter any issues, please contact our support team with your order details. Returns are accepted within our standard window for unused parts in their 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 and specifications against 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\u003e\n\u003cb\u003ePro-Grade Standards\u003c\/b\u003e — We supply marine parts engineered to OEM-level tolerances and tested for real-world conditions.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eFast Global Fulfillment\u003c\/b\u003e — Free standard delivery to most regions in 5–15 days.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cb\u003eManufacturer-Direct Value\u003c\/b\u003e — Fair pricing without compromising on materials or quality control.\u003c\/li\u003e\n\u003c\/ul\u003e\n\u003c\/section\u003e","brand":"SeaSierra","offers":[{"title":"Default Title","offer_id":50717901586747,"sku":"131-0160QM","price":28.95,"currency_code":"USD","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0826\/8673\/8747\/files\/131-0160QM.png?v=1762937895","url":"https:\/\/seasierra.com\/products\/water-pump-impeller-kit-fits-onan-4-0-kw-6-5-kw-7-5-kw-generator-replaces-131-0160-131-0165-131-0267","provider":"SeaSierra","version":"1.0","type":"link"}