22 02 10 Cylinder Head for Air Brake Compressors

What does a cylinder head do?

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.

Compressor head types and functions

This component is essential for maintaining pneumatic pressure in heavy commercial vehicles. It is designed to be used on single- or twin-cylinder compressors, with options available for both air-cooled and water-cooled configurations. These heads allow for efficient compressor rebuilding in place rather than requiring a complete unit replacement.

Vehicle and engine compatibility

This cylinder head is compatible with Caterpillar C7, C9, C11, C13, C15, and C18 engines. It is widely used in various heavy commercial vehicle models including Kenworth T800, Peterbilt 387, Mack TITAN, and Freightliner Cascadia. It also fits Sterling L-LINE and International Paystar applications.

Installation and maintenance guidance

When replacing a cylinder head, technicians should inspect the discharge port threads and valve seat bore diameter to ensure a perfect seal. Maintaining correct torque on the bolt hole pattern is critical to prevent gasket leaks and ensure long-term durability in high-pressure environments.