412 100 805 2 Compatible WABCO Compressor Cylinder Head

What does a compressor cylinder head do?

This compressor cylinder head acts as the essential service component that sits atop the cylinder block to seal the compression chamber. It is engineered to allow workshop technicians to rebuild air brake compressors in place, providing a cost-effective alternative to replacing the entire unit. By sealing the chamber effectively, this component ensures stable pneumatic pressure for heavy commercial vehicle braking systems.

Compatibility and system architecture

This part is compatible with WABCO systems and is utilized in various compressor architectures, including single-cylinder and twin-cylinder configurations. Whether the application requires air-cooled fins or water-cooled jacket channels, selecting the correct head based on the compressor architecture is vital for proper performance. It is also available in configurations designed for specific unloader port requirements.

Installation and maintenance guidance

For reliable installation, technicians should inspect the cylinder block surface and ensure all internal air passages are clear of debris. Proper seating of the inlet and discharge valves within the head is critical to prevent pressure leaks. Maintaining these components during routine service intervals helps prevent premature wear of the compressor assembly. Consult your authorized distributor.

OE cross-reference

12 02 20 (Compressor Cylinder Head) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 4121008052.