Description
Product Overview:
Part Name: Oil Pump 3937404 / 4939587 / 3901175 / 3926203 / 3941742 / 3930337 / 3932449 / 393702
Part Numbers: 3937404, 4939587, 3901175, 3926203, 3941742, 3930337, 3932449, 393702
Vehicle Compatibility: Cummins: 3.9L 4B, 5.9L 6B, ISB diesel engines (1998–2020) used in Dodge Ram trucks, Freightliner, Blue Bird buses, and construction equipment ; also suitable for agricultural and stationary engines powered by Cummins B-series
Configuration: Aftermarket high-volume oil pump designed to maintain correct lubrication pressure under all engine operating conditions
Function: Circulates engine oil through bearings, camshaft, and valvetrain to prevent wear, reduce friction, and maintain cooling during operation
Technical Specifications:
Type: Gear-driven oil pump
Flow Rate: OEM-spec high-volume design for Cummins B-series engines
Material: Heavy-duty cast iron or steel housing with precision-cut gears
Application: Trucks, buses, off-road machinery, and gensets powered by Cummins 4B/6B/ISB engines
Installation: Direct bolt-on replacement with OEM-style gaskets and hardware
Service Interval: Replace during engine overhaul or when oil pressure is below specification
Delivery & Availability:
Stock Options: High-quality aftermarket oil pumps available individually
Delivery Time: 3–7 days internationally
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