4945947 Twin Cylinder Compressor for Cummins Engines

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical component within the air brake system of heavy commercial vehicles, providing the necessary compressed air through two piston-cylinder assemblies. Designed for durability, this unit utilizes heavy-duty grade materials to withstand high-pressure cycles and demanding operating environments.

Engine compatibility and fitment

This component is compatible with Cummins engines, specifically the ISC8.3, QSC8.3, ISL, and QSL9 series. It is engineered to meet the high air-demand requirements of multi-axle tractor units and heavy-duty machinery.

Installation and cooling specifications

Technicians should note that this is a water-cooled unit featuring a water-cooled valve plate for optimal thermal management. The installation requires connection to the 3/4-16 UNF water inlet and outlet ports, with an M27x2 air outlet port for system integration.

Maintenance considerations

Regular inspection of the water cooling lines and the M10x1 unloader port is recommended to prevent system pressure fluctuations and ensure efficient air delivery throughout the service interval.

OE cross-reference

2500 150 002 (Twin Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 4945947.