4945947 Cummins Compatible Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a vital engine-driven component within the air brake system, utilizing two piston-cylinder assemblies to generate high-volume compressed air. Designed with heavy-duty grade materials, it ensures consistent pressure delivery to the vehicle's pneumatic reservoirs even under demanding operating conditions.

Engine compatibility and fitment

This unit is compatible with Cummins engines, specifically the QSL9, ISL, ISC8.3, and QSC8.3 series. It is engineered to meet the high air demand of heavy commercial vehicles, providing efficient performance through its water-cooled design and specialized valve plate.

Technical installation and maintenance

Technicians should note the specific mounting and connection requirements: the unit features an M27x2 air outlet port, an M10x1 unloader port, and 3/4-16 UNF water inlet/outlet ports. Maintaining the cooling system and checking port integrity during installation is essential for long-term service life.

System performance and troubleshooting

For optimal performance, ensure the water-cooled system is free of obstructions and the ESS feature is functioning correctly within the pneumatic circuit.

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.