Description
Product Overview
Part Name: High Pressure Fuel Injection Pump (CP3 Pump)
Part Number: 0445020039
Vehicle Compatibility: Cummins Engines – ISD4.5, G5.9, B4.5, B5.9, and QSB6.7 used in trucks, buses, construction equipment, and industrial machinery (2003–2013).
Configuration: OEM-style Bosch CP3 common rail fuel injection pump, engineered for high-pressure diesel systems in medium- and heavy-duty applications.
Function: Supplies consistent high-pressure fuel to the common rail, ensuring precise injector performance, efficient combustion, and reduced emissions.
Technical Specifications
Type: Bosch CP3 High-Pressure Fuel Pump
Material: Forged steel housing with precision-machined internal plungers and hardened surfaces
Application: Fits Cummins ISD4.5, B4.5, B5.9, QSB6.7 engines (2003–2013) using part reference 0445020039
Cross-Reference: Equivalent to Bosch 0445020039, Cummins OEM references 3973228, 4941069, 4988595
Installation: Direct-fit aftermarket replacement; mounts with OEM brackets and connects to existing common rail systems
Service Interval: Replace if experiencing low rail pressure, hard starting, fuel leakage, or ECU pump-related fault codes
Delivery & Availability
Stock Options: High-quality aftermarket Bosch CP3 fuel pumps available
Delivery Time: 3–7 days internationally
Payment & Security
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