Description
Product Overview
Part Name: Diesel Engine Lubrication Oil Pump
Part Numbers: 4939586, 5273937, 5313086
Vehicle Compatibility: Cummins Engines: QSB6.7 and ISDe diesel engines (2000–2020); widely applied in trucks, buses, power generators, construction machinery, and agricultural equipment requiring reliable lubrication systems
Configuration: OEM-style heavy-duty lubrication oil pump designed for Cummins medium-duty engines, delivering stable oil flow and pressure for continuous operation
Function: Circulates oil to bearings, pistons, and camshaft, reducing wear, managing engine temperature, and ensuring extended engine service life
Technical Specifications
Type: Heavy-duty mechanical gear oil pump
Material: Cast iron housing with precision-machined steel gears
Application: Fits Cummins QSB6.7 and ISDe engines manufactured between 2000–2020 using pump references 4939586, 5273937, and 5313086
Installation: Direct-fit OEM-style replacement; mounts with factory hardware and integrates seamlessly with Cummins lubrication systems
Service Interval: Replace when oil pressure drops, pump wear/noise occurs, or during scheduled engine rebuilds
Delivery & Availability
Stock Options: High-quality Cummins QSB6.7/ISDe oil pumps available
Delivery Time: 3–7 days internationally
Payment & Security
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