{"product_id":"cummins-5263374-water-pump-isf3-8-qsb4-5","title":"Cummins 5263374 Water Pump for Diesel Engine | Fits ISF3.8 ISB4.5 QSB4.5","description":"\u003cdiv style=\"margin: 15px 0 25px 0; padding: 15px; background-color: #fcfcfc; border: 1px dashed #e0e0e0; border-radius: 6px; text-align: center;\"\u003e\n  \u003cp style=\"margin: 0 0 10px 0; font-weight: bold; font-size: 15px; color: #333;\"\u003eIn Stock \u0026amp; Ready for Global Express Dispatch\u003c\/p\u003e\n  \u003ca href=\"\/pages\/contact\" style=\"background-color: #ffcc00; color: #000; padding: 12px 28px; text-decoration: none; font-weight: bold; border-radius: 4px; display: inline-block; font-size: 16px; box-shadow: 0 2px 4px rgba(0,0,0,0.1);\"\u003eRequest a Quick Quote\u003c\/a\u003e\n  \u003cp style=\"margin: 10px 0 0 0; font-size: 13px; color: #666;\"\u003e\n    ✓ Premium Cummins Quality Spec  |  ✓ 100% Direct Fit  |  ✓ Fast Global Shipping\n  \u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cp\u003ePremium engine water pump designed as a direct OEM-compatible replacement for Cummins diesel engines, delivering heavy-duty coolant flow and optimal thermal management. Precision-engineered to handle continuous operation under extreme temperature and load conditions, ensuring long service life and reliable cooling for industrial, agricultural, and commercial vehicle applications.\u003c\/p\u003e\n\n\u003ch2\u003eProduct Highlights\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003ePart Number:\u003c\/strong\u003e 5263374\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eDirect Fit OEM Replacement:\u003c\/strong\u003e Form, fit, and function perfectly match original Cummins factory specifications without requiring engine modifications.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Construction:\u003c\/strong\u003e Manufactured with high-strength precision-cast housing and corrosion-resistant impellers to withstand extreme thermal cycles and cavitation.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eOptimized Cooling Performance:\u003c\/strong\u003e Precision-balanced impeller design ensures efficient coolant circulation, preventing engine overheating and maintaining uniform operating temperatures.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eTechnical Specifications\u003c\/h2\u003e\n\u003ctable style=\"width:100%; border-collapse: collapse; margin: 15px 0;\"\u003e\n  \u003cthead\u003e\n    \u003ctr style=\"background-color: #f2f2f2; border-bottom: 2px solid #dddddd;\"\u003e\n      \u003cth style=\"padding: 10px; text-align: left; border: 1px solid #dddddd;\"\u003eParameter\u003c\/th\u003e\n      \u003cth style=\"padding: 10px; text-align: left; border: 1px solid #dddddd;\"\u003eSpecification\u003c\/th\u003e\n    \u003c\/tr\u003e\n  \u003c\/thead\u003e\n  \u003ctbody\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003ePart Number\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e5263374\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd; background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eProduct Type\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eEngine Water Pump \/ Coolant Pump\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eBrand Compatibility\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eCummins Engine\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd; background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eApplication\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eEngine Cooling System \u0026amp; Thermal Management\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eMaterial\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003eHigh-Strength Alloy Body \u0026amp; Heavy-Duty Mechanical Seal\u003c\/td\u003e\n    \u003c\/tr\u003e\n    \u003ctr style=\"border-bottom: 1px solid #dddddd; background-color: #f9f9f9;\"\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e\u003cstrong\u003eWarranty\u003c\/strong\u003e\u003c\/td\u003e\n      \u003ctd style=\"padding: 10px; border: 1px solid #dddddd;\"\u003e12 Months Warranty\u003c\/td\u003e\n    \u003c\/tr\u003e\n  \u003c\/tbody\u003e\n\u003c\/table\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eCompatible Models \u0026amp; Equipment\u003c\/h2\u003e\n\u003cp\u003eThis premium engine water pump is engineered to fit a wide range of Cummins diesel engine models across construction, agricultural, and commercial machinery:\u003c\/p\u003e\n\n\u003cul\u003e\n  \u003cli\u003eCummins Engine Series: ISF3.8, F3.8, F4.5, B4.0, B4.5, D4.5, ISB4.5, QSB4.5, 6B5.9, QSX15\u003c\/li\u003e\n  \u003cli\u003eCompatible Equipment: Excavators, Wheel Loaders, Light\/Medium Duty Trucks, Industrial Power Units, and Agricultural Equipment powered by Cummins engines.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eKey Applications\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eEngine Temperature Control:\u003c\/strong\u003e Delivers reliable coolant flow through the engine block, cylinder head, and radiator to prevent thermal stress and overheating.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eHeavy-Duty Equipment Operation:\u003c\/strong\u003e Maintains optimal cooling efficiency during prolonged high-load operation in construction and mining environments.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCooling System Overhaul:\u003c\/strong\u003e Ideal for preventive maintenance and engine rebuilds to restore peak thermal regulation performance.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eWhy Choose Our Aftermarket Cummins Parts?\u003c\/h2\u003e\n\u003cul\u003e\n  \u003cli\u003e\n\u003cstrong\u003eGuaranteed OEM Quality:\u003c\/strong\u003e Manufactured under strict ISO 9001 quality standards to match original Cummins factory specifications and fitment.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eCost-Effective Reliability:\u003c\/strong\u003e Get identical cooling efficiency and heavy-duty durability at a competitive direct-from-factory price.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eReady for Fast Dispatch:\u003c\/strong\u003e Kept in stock for fast global express shipping, helping minimize equipment downtime.\u003c\/li\u003e\n  \u003cli\u003e\n\u003cstrong\u003eExpert Technical Support:\u003c\/strong\u003e Backed by a 12-month warranty and technical support from experienced engine component specialists.\u003c\/li\u003e\n\u003c\/ul\u003e\n\n\u003chr\u003e\n\n\u003ch2\u003eFrequently Asked Questions (FAQ)\u003c\/h2\u003e\n\u003cdiv style=\"background-color: #f9f9f9; border-left: 4px solid #0056b3; padding: 15px; margin-bottom: 15px;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Is this water pump a direct fit replacement for Cummins part number 5263374?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes, this is a premium aftermarket replacement water pump built to exact Cummins dimensions, bolt patterns, and flow rates for a direct drop-in installation.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f9f9f9; border-left: 4px solid #0056b3; padding: 15px; margin-bottom: 15px;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: What is covered under the 12-month warranty?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Our 12-month warranty covers manufacturing defects, seal leakages, and material failures under normal operating conditions.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f9f9f9; border-left: 4px solid #0056b3; padding: 15px; margin-bottom: 15px;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: Should I replace the coolant and seals when installing a new water pump?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e Yes. We strongly recommend flushing the cooling system, installing new gaskets\/O-rings, and refilling with fresh, recommended coolant to prevent seal damage and premature wear.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003cdiv style=\"background-color: #f9f9f9; border-left: 4px solid #0056b3; padding: 15px; margin-bottom: 15px;\"\u003e\n  \u003cp\u003e\u003cstrong\u003eQ: How fast can this part be delivered?\u003c\/strong\u003e\u003c\/p\u003e\n  \u003cp\u003e\u003cstrong\u003eA:\u003c\/strong\u003e In-stock items are typically dispatched within 3–5 business days, with express air freight available for urgent machine-down orders.\u003c\/p\u003e\n\u003c\/div\u003e\n\n\u003chr\u003e\n\n\u003cdiv style=\"text-align: center; background-color: #f4f6f8; padding: 15px; border-radius: 6px; margin: 25px 0;\"\u003e\n  \u003cspan style=\"font-size: 16px; color: #333;\"\u003eExplore our full range of Cummins engine replacement parts:\u003c\/span\u003e \n  \u003cbr style=\"margin-bottom: 5px;\"\u003e\n   \u003ca href=\"\/collections\/water-pump-series\" style=\"color: #0056b3; font-weight: bold; text-decoration: underline; font-size: 17px;\"\u003e\n    View All Engine Water Pumps »\n  \u003c\/a\u003e\n\u003c\/div\u003e\n\n\u003ch3 style=\"text-align: center; margin-top: 30px;\"\u003eNeed a Quote for Cummins 5263374?\u003c\/h3\u003e\n\u003cp style=\"text-align: center;\"\u003eContact us today for instant pricing, bulk order discounts, and global shipping options.\u003c\/p\u003e\n\u003cp style=\"text-align: center; margin-bottom: 30px;\"\u003e\n  \u003ca href=\"\/pages\/contact\" style=\"background-color: #ffcc00; color: #000; padding: 12px 25px; text-decoration: none; font-weight: bold; border-radius: 4px; display: inline-block;\"\u003eRequest a Quote\u003c\/a\u003e\n\u003c\/p\u003e","brand":"Cummins","offers":[{"title":"Default Title","offer_id":47687518453916,"sku":null,"price":0.0,"currency_code":"CNY","in_stock":true}],"thumbnail_url":"\/\/cdn.shopify.com\/s\/files\/1\/0738\/7385\/0524\/files\/cummins-5263374-engine-water-pump-1.jpg?v=1790260723","url":"https:\/\/hepumpstore.com\/products\/cummins-5263374-water-pump-isf3-8-qsb4-5","provider":"HEPUMP","version":"1.0","type":"link"}