25 01 50 Cummins Engine Compressor Cylinder Head

What is a compressor cylinder head?

A compressor cylinder head is the cast service part that closes off the top of an air brake compressor's cylinder block and carries the seats for the inlet and discharge valves. It holds the piston's compressed air without leaking, routes it out through the discharge port, and carries away part of the compression heat from the body.

Vehicle and engine compatibility

This component is compatible with various heavy commercial vehicles, including Kenworth T600A, Peterbilt 378, and Freightliner Century Class models. It is specifically engineered for use with Cummins N14 and ISM engines, providing a precise fit for applications ranging from tractor units to buses like New Flyer or Gillig.

Installation and maintenance

When performing maintenance, ensure the sealing face is inspected for flatness to prevent gasket leaks. The installation process requires strict adherence to torque specifications to maintain a proper seal between the head and the cylinder block. This part allows for the rebuilding of existing compressors, extending the service life of the pneumatic system.

System reliability

Maintaining a high-quality cylinder head ensures stable air pressure output, which is vital for safe braking performance in heavy-duty fleets. Check the compatibility list to ensure this part matches your specific engine configuration.

OE cross-reference

25 01 50 (Compressor Cylinder Head) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 2K97876MS1.