Description
Product Overview:
Part Name: Fuel Injection Pump 4063845 4063844
Part Numbers: 4063845, 4063844
Vehicle Compatibility: Cummins: QSB5.9, 6B5.9 diesel engines used in Freightliner, Kenworth, Peterbilt, and International trucks (2000–2018) ; also used in buses, agricultural equipment, and marine applications with B-series engines
Configuration: Aftermarket high-pressure mechanical fuel injection pump calibrated for QSB5.9/6B5.9 engines
Function: Supplies pressurized fuel to engine injectors, ensuring consistent atomization, smooth combustion, and reliable power delivery under heavy-duty operation
Technical Specifications:
Type: High-pressure inline fuel injection pump
Fuel System: Mechanical injection, calibrated for Cummins B-series
Material: Forged steel housing with precision-machined components
Application: Trucks, buses, marine engines, and off-highway equipment powered by Cummins B-series
Installation: Direct bolt-on replacement with OEM-compatible fuel lines
Service Interval: Replace during major fuel system overhaul or when injection pressure falls below specification
Delivery & Availability:
Stock Options: High-quality aftermarket fuel injection pumps available individually
Delivery Time: 3–7 days internationally
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