Cummins 5263374 Water Pump for Diesel Engine | Fits ISF3.8 ISB4.5 QSB4.5
Cummins 5263374 Water Pump for Diesel Engine | Fits ISF3.8 ISB4.5 QSB4.5
In Stock & Ready for Global Express Dispatch
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Premium 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.
Product Highlights
- Part Number: 5263374
- Direct Fit OEM Replacement: Form, fit, and function perfectly match original Cummins factory specifications without requiring engine modifications.
- Heavy-Duty Construction: Manufactured with high-strength precision-cast housing and corrosion-resistant impellers to withstand extreme thermal cycles and cavitation.
- Optimized Cooling Performance: Precision-balanced impeller design ensures efficient coolant circulation, preventing engine overheating and maintaining uniform operating temperatures.
Technical Specifications
| Parameter | Specification |
|---|---|
| Part Number | 5263374 |
| Product Type | Engine Water Pump / Coolant Pump |
| Brand Compatibility | Cummins Engine |
| Application | Engine Cooling System & Thermal Management |
| Material | High-Strength Alloy Body & Heavy-Duty Mechanical Seal |
| Warranty | 12 Months Warranty |
Compatible Models & Equipment
This premium engine water pump is engineered to fit a wide range of Cummins diesel engine models across construction, agricultural, and commercial machinery:
- Cummins Engine Series: ISF3.8, F3.8, F4.5, B4.0, B4.5, D4.5, ISB4.5, QSB4.5, 6B5.9, QSX15
- Compatible Equipment: Excavators, Wheel Loaders, Light/Medium Duty Trucks, Industrial Power Units, and Agricultural Equipment powered by Cummins engines.
Key Applications
- Engine Temperature Control: Delivers reliable coolant flow through the engine block, cylinder head, and radiator to prevent thermal stress and overheating.
- Heavy-Duty Equipment Operation: Maintains optimal cooling efficiency during prolonged high-load operation in construction and mining environments.
- Cooling System Overhaul: Ideal for preventive maintenance and engine rebuilds to restore peak thermal regulation performance.
Why Choose Our Aftermarket Cummins Parts?
- Guaranteed OEM Quality: Manufactured under strict ISO 9001 quality standards to match original Cummins factory specifications and fitment.
- Cost-Effective Reliability: Get identical cooling efficiency and heavy-duty durability at a competitive direct-from-factory price.
- Ready for Fast Dispatch: Kept in stock for fast global express shipping, helping minimize equipment downtime.
- Expert Technical Support: Backed by a 12-month warranty and technical support from experienced engine component specialists.
Frequently Asked Questions (FAQ)
Q: Is this water pump a direct fit replacement for Cummins part number 5263374?
A: 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.
Q: What is covered under the 12-month warranty?
A: Our 12-month warranty covers manufacturing defects, seal leakages, and material failures under normal operating conditions.
Q: Should I replace the coolant and seals when installing a new water pump?
A: 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.
Q: How fast can this part be delivered?
A: In-stock items are typically dispatched within 3–5 business days, with express air freight available for urgent machine-down orders.
Need a Quote for Cummins 5263374?
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