0445020127 Original CP3S3 Common Rail High Pressure Pump For Doosan DL08 Engine

0445020127 Original CP3S3 Common Rail High Pressure Pump

The 0445020127 high-pressure common rail fuel pump, also written as 0 445 020 127, is a radial-piston common rail pump used in selected Doosan DL08 Tier 3 diesel engine applications. Bo-sch's official diesel cross-reference catalogue maps Doosan 65.10501-7006 to Bo-sch 0 445 020 127.

The pump belongs to the Bo-sch CP3S3 common rail family. Its complete technical designation is CR/CP3S3/L110/30-789S. The pump delivers high-pressure diesel fuel to the common rail system and uses an electronically controlled metering unit to regulate incoming fuel volume.

Product Specifications

Pump Component References

• Metering Unit: 0 928 400 760 / 0928400760
• Gear Pump: 0 440 020 059 / 0440020059
• Suction Valve Parts Set: F00N203196
• Eccentric Shaft: F00N202657

These numbers are component references rather than complete-pump replacement numbers.

System Design

The CP3S3 architecture is a three-plunger radial pump driven by the engine. Fuel quantity is controlled by the 0928400760 metering unit on the low-pressure side, which regulates the volume delivered to the rail. Understanding the metering-unit reference helps to avoid mixing this pump with other DL08 pressure stages.

Typical Equipment Applications

Application data identifies 0445020127 / 65.10501-7006 with selected Doosan machines using the DL08 7.64L engine, including DX300LC, DX300LCA, DX340LC and DX360LCA.

DL08 Tier 3 Configuration Note

Doosan DL08 Tier 3 does not use only one high-pressure-pump number. Application data separately lists 0445020031 / 65.10501-7001A within a DL08 EU3 / Tier 3 system and 0445020127 / 65.10501-7006 as another DL08 Tier 3 pump node. These should remain separate part-number configurations unless the machine or engine serial information confirms interchangeability.

Note: technical catalogues identify this unit as CP3S3, not CP4.