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3803138 / 4955844 Cummins NT855 OEM Water Pump Assembly
High-capacity water pump engineered for superior coolant flow and heat dissipation – maintains optimal engine temperatures, prevents overheating, and supports long-term reliability in demanding NT855/NTA855 applications.
Primary Part Numbers:
- 3803138
- 4955844 (common supersession)
Supplier: Volgen Power
Product Details
This genuine Cummins OEM Water Pump Assembly (3803138 / 4955844) is a robust centrifugal pump designed for efficient circulation of coolant through the engine block, radiator, and related systems. Built to exact factory specifications, it features a heavy-duty impeller, sealed bearings, and durable housing to handle high-volume flow rates and resist corrosion in harsh operating environments.
Volgen Power supplies authentic Cummins parts, ensuring seamless fitment, reliable sealing, and extended service life for your NT855 engine.
Performance Advantages
- Efficient Coolant Circulation — High-flow impeller design maximizes heat transfer and prevents hot spots
- Leak-Free Sealing — Precision gaskets and mechanical seals withstand pressure and thermal cycling
- Heavy-Duty Bearings — Long-life sealed units reduce maintenance and support continuous operation
- Corrosion Resistance — Premium materials protect against coolant additives and contaminants
- Direct OEM Replacement — Bolt-on installation with factory pulley and connections for minimal downtime
Applications
Commonly used in rigorous setups such as:
- Marine propulsion and auxiliary systems
- Large generator sets and power plants
- Mining and construction equipment (dozers, loaders)
- Industrial compressors and pumping units
Engine Compatibility
Compatible with Cummins engine models:
- NT855 / NTA855
- NH855 / NTC855
- NT495 / NT743 variants
- Marine and industrial configurations
Technical Specifications
| Attribute | Detail |
|---|---|
| Primary Part Numbers | 3803138 / 4955844 |
| Pump Type | Centrifugal coolant pump |
| Impeller Material | Cast iron or composite (OEM spec) |
| Drive | Belt-driven pulley |
| Flow Rate | High-capacity for a 14L engine |
| Seal Type | Mechanical face seal |
| Weight | Approx. 15–20 lbs |
Volgen Power stocks genuine Cummins OEM water pumps for NT855 engines, ready for immediate worldwide shipment.
Keep your NT855 engine running cool and efficient – contact us today for pricing, availability, or technical support. Get your quote now!
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