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Fuel Injection Pump Cummins 3975701 | 5256607, 5256608, 4988593, 0445020122
High-performance fuel injection pump designed for Cummins QSB and ISB engines, ensuring precise fuel delivery and optimal combustion efficiency. Built to meet rigorous standards for long-lasting durability in demanding heavy-duty applications.
Description
High-Pressure Fuel Injection Pump for Cummins QSB and ISB Engines
The Cummins 3975701 fuel injection pump is a critical component of the high-pressure common rail (HPCR) fuel system, engineered to deliver precise fuel metering and high-pressure delivery to the injectors. Designed specifically for medium-duty and industrial applications, this pump ensures optimal combustion, reduced emissions, and consistent engine performance under heavy loads. This part is also available under the numbers: 5256607, 5256608, 4988593, and 0445020122.
A failing fuel injection pump can lead to hard starting, rough idling, loss of engine power, or a complete no-start condition. Replacing your worn pump with this high-quality unit restores proper fuel system pressure and keeps your equipment running efficiently. Built with precision-machined internal components, it is designed to withstand the high pressures and constant cycling of modern diesel engines.
Engine Compatibility and Applications
This fuel injection pump is widely used across a variety of industrial, agricultural, and automotive applications. It is compatible with the following engine models:
- Cummins QSB 4.5 (including Tier 3 and Stage IIIA applications)
- Cummins QSB 6.7 (widely used in construction and agricultural equipment)
- Cummins ISB 6.7 (automotive and medium-duty truck applications)
- Cummins ISF 3.8 (light commercial vehicle applications)
- Komatsu SAA4D107 & SAA6D107 (equivalent industrial engines)
Key Features and Benefits
- Precise Fuel Metering: Delivers fuel at the exact timing and pressure required by the engine control module (ECM) for maximum thermal efficiency.
- Durable Construction: Manufactured using premium materials and advanced machining techniques to resist wear and extend service life.
- Direct Fit: Built to exact dimensional specifications for a straightforward, bolt-on installation without the need for complex modifications.
- Reliable Performance: Restores factory-spec fuel pressure to eliminate hard starts, power loss, and rough idling.
Cross-Reference / Interchange Part Numbers
This part replaces / is interchangeable with the following part numbers:
- 3975701
- 5256607
- 5256608
- 4988593
- 4941066
- 4982057
- 3971529
- 5264248
- 4988595
- 0445020122
- 0445020043
- 0445020150
- 0986437342
- 0445020045
- 04450120122
- 0986437310
- 1702932
- 1409696
- 2P0130105B
