4945947 Cummins Compatible Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical engine-driven component within the air brake system of heavy commercial vehicles, generating high-volume compressed air through two piston-cylinder assemblies.

Engine compatibility and fitment

The unit is specifically designed to be compatible with Cummins engines, including the ISC8.3, QSC8.3, ISL, and QSL9 series. This water-cooled configuration ensures efficient thermal management during high-demand operation, making it suitable for heavy-duty applications requiring consistent air pressure.

Technical specifications and installation

Technicians should note the technical specifications for correct installation: this unit features a Ø75.00 cylinder bore, a 56 mm stroke, and an air outlet port size of M27x2. The water inlet and outlet ports utilize 3/4-16 UNF connections to facilitate integration into the engine cooling system.

Maintenance and troubleshooting

To maintain optimal performance, ensure all water and air connections are tightened to specification and check the unloader port (M10x1) during routine inspections to prevent system pressure irregularities.

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.