4945947 Twin Cylinder Air Compressor for Cummins

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical engine-driven component within the pneumatic air brake system of heavy commercial vehicles. By utilizing two piston-cylinder assemblies, this unit provides a higher air output compared to single-cylinder versions, ensuring rapid reservoir inflation for high-demand braking systems.

Engine compatibility and fitment

This specific model is engineered for compatibility with Cummins engines, including the ISC8.3, QSC8.3, ISL, and QSL9 series. It is built with heavy-duty grade materials to withstand rigorous industrial operating conditions and provides consistent pressure for heavy commercial vehicle applications.

Technical specifications and maintenance

The unit features a water-cooled configuration with a 3/4-16 UNF water inlet and outlet port to manage thermal loads effectively. Technical specifications include a Ø75.00 mm cylinder bore, a 56 mm stroke, and an air outlet port size of M27x2. Maintenance technicians should verify the M10x1 unloader port and the through-drive interface during installation to ensure optimal system performance.

System reliability

Proper selection of this compressor ensures reliable pneumatic pressure for braking and auxiliary systems in heavy-duty applications.

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.