One-stop auto parts supplier
5264243 Fuel Pump 5254461 For Cummins ISB3.9 ISB4.5 Engine 5264243RX 5254461NX
This product is a replacement part for the CP3 series high-pressure common rail fuel pump, which is originally supplied to Cummins ISB3.9/ISB4.5 series engines. It is mainly used for replacement in the aftermarket. This product is a core fuel supply component of diesel power systems and is widely applicable to light trucks, buses, construction machinery, generator sets, and other scenarios.
Product Name: Fuel Pump
Part Number: 5264243 (Main Model), 5254461 (Matching Model), Cummins OE number
Corresponding Models: 0445020149, 0986437337, 0445020007 (Bosch )
Series: CP3 (Radial Piston High-Pressure Common Rail Pump)
Applicable Fuel: Diesel
Compatible Engines: Cummins ISB3.9, ISB4.5 (B Series 4.5L/3.9L Electronic Control Common Rail Models)
Core Technical Parameters
- Maximum Operating Rail Pressure: 1600 bar (160 MPa)
- Control Method: Electronic Metering Unit (MeUN) Closed-Loop Control
- Lubrication Method: Fuel Self-Lubrication
- Operating Temperature: -40°C ～ +100°C
- Drive Type: Engine Gear Drive
- Installation Direction: Right-hand (Standard Fit)
Core Product Advantages
1. Original Factory Precision Matching, Ready to Use;
2. High-Pressure Stable Fuel Supply, Superior Power and Efficiency;
3. Original Factory Quality, Durable and Reliable;
4. Directly replaceable with models in the same series such as 5254461, 0445020149, and 0445020007, offering multiple after-sales replacement options.
5. Original/matching quality, 6-12-month warranty, and comprehensive after-sales support.
Compatibility Scope
1. Compatible Engines
Cummins: ISB3.9, ISB4.5, ISBe4, QSB3.9, QSB4.5
Others: B3.9, B4.5, ISD4.5, etc. (B-series electronically controlled common rail models)
2. Compatible Vehicles/Equipment
Commercial Vehicles: Light trucks, heavy trucks, buses (compatible with Cummins ISB3.9/4.5 engines)
Construction Machinery: Excavators, loaders, forklifts, road rollers (Komatsu SAA4D102E, etc.)
Agricultural Machinery: Tractors, harvesters
Generator Sets: Cummins ISB series diesel generator sets
Hot Points
- Cummins original equipment manufacturer (OEM), mature CP3 series technology, stable and reliable performance
- 1600bar high voltage, precise electronic control, strong power, low fuel consumption, and excellent emissions
- ISB3.9/4.5 Custom-designed, ready to use, easy installation.
- Self-lubricating fuel, simple maintenance, suitable for long-term continuous operation.
- Widely compatible with commercial vehicles, construction machinery, agricultural machinery, generator sets, and many other fields.
