25 03 51 Compressor Cylinder Head for Heavy Duty

What does a compressor cylinder head do?

A compressor cylinder head is a critical component within the air brake system, serving as the primary sealing chamber where air compression occurs. This part is manufactured from high-strength components to ensure dimensional stability under extreme thermal and pressure cycles, preventing leaks and maintaining consistent air pressure delivery.

Compatible vehicles and engines

This cylinder head is compatible with Cummins engines and is fitted to various heavy commercial vehicle models including Freightliner Cascadia, Kenworth W900, Volvo VNL series, and Peterbilt 389. It also serves various applications in Volvo, Ford Trucks, and Western Star trucks. Selection should always be based on the compressor's own reference number to ensure exact fitment.

Installation and maintenance

Maintenance of the cylinder head involves checking for any signs of surface wear or unevenness on the sealing face. Technicians should verify that the discharge port threads and bolt hole patterns match the existing unit during installation to prevent gasket failure or air leaks.

Troubleshooting and selection

Ensuring proper torque during assembly is essential for maintaining the integrity of the pneumatic seal between the head and the compressor block.