912 210 923 2 Cylinder Head compatible with WABCO

What does a compressor cylinder head do?

A compressor cylinder head acts as the cast service component that sits on top of an air brake compressor's cylinder block, sealing the compression chamber from above. This part is essential for workshop technicians performing a rebuild of a compressor in place rather than replacing the entire unit. It functions by housing the seats for the inlet and discharge valves, internal air passages, and cooling cavities, which directly govern the air output and operating temperature.

Compatibility and application

This component is compatible with WABCO systems. It serves as a critical part in maintaining the pneumatic integrity of the braking system under high-pressure conditions. By replacing only the head, technicians can restore compressor performance efficiently during routine maintenance or after detecting leaks in the compression chamber.

Installation and maintenance guidance

When performing installation, ensure that all valve seats and gaskets are inspected to prevent pressure loss. Proper torque application is vital to maintain a seal between the head and the cylinder block. For optimal performance, check the cooling channels if the head is a water-cooled variant to ensure no obstructions exist in the jacket channels.

Selection guidance

Check the compatibility list to ensure this part matches your specific compressor architecture, whether it be a single-cylinder or twin-cylinder configuration.

OE cross-reference

11 45 10 (Compressor Cylinder Head) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 9122109232.