25 09 10 Cylinder Head for Air Brake Compressors

What does a compressor cylinder head do?

A compressor cylinder head is the essential cast component that seals the top of an air brake compressor's cylinder block, housing the seats for the inlet and discharge valves. It performs a critical role by maintaining air pressure within the cylinder and routing compressed air through the discharge port while managing compression heat.

Vehicle and engine compatibility

This component is compatible with WABCO systems and is widely used in various heavy commercial vehicle applications. It fits a broad range of models including Freightliner, Peterbilt, International, Blue Bird, Kenworth, and Volvo, particularly when equipped with Cummins ISC or ISB engines. It is also fitted to Ford Trucks, Dongfeng, and various bus models like Thomas Built Buses or Gillig.

Installation and maintenance

When performing maintenance, it is vital to ensure the sealing face is perfectly flat to prevent gasket leaks. Technicians should verify that the bolt hole pattern and discharge port dimensions match the original requirements exactly. Proper installation ensures the compressor maintains stable output and prevents system pressure drops.

Selection guidance

Selection should always be based on the specific compressor architecture. Whether the system utilizes an air-cooled or water-cooled configuration, ensuring precise compatibility with the engine type is necessary for successful rebuilding of the pneumatic unit.

OE cross-reference

25 09 10 (Compressor Cylinder Head) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 9111549202.