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412 090 801 2 WABCO Compatible Compressor Cylinder Head

12 03 10

Summary

This compressor cylinder head is a critical service component designed for air brake compressors. It ensures the sealing of the compression chamber and is compatible with WABCO systems. Engineered with heavy-duty grade materials to withstand high-pressure environments in heavy commercial vehicle braking systems. Equivalent to OE WABCO 4120908012.

Product identifiers
EAN Code8699031016924
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Compatible OEM Codes

  • WABCO
    • 412 090 804 2
    • 412 090 803 2
    • 412 090 801 2
  • MAN
    • 51.54114-6081

Description

What does a compressor cylinder head do?

A compressor cylinder head serves as the primary sealing component that sits atop the air brake compressor cylinder block. It is designed to seal the compression chamber from above, allowing workshop technicians to rebuild a compressor in place rather than replacing the entire unit. This component is essential for maintaining consistent air pressure within the braking system.

Compatibility and function

This specific cylinder head is compatible with WABCO systems. It functions by housing the seats for the inlet and discharge valves, internal air passages, and cooling cavities. These features directly govern both the air output and the operational temperature of the compressor during heavy-duty service.

Installation and maintenance

For proper installation, technicians should verify that all mating surfaces are clean and free of debris. Ensuring correct torque settings on the mounting bolts is vital to prevent pressure leaks and ensure long-term durability under high-pressure conditions. Consult your authorized distributor for fitment guidance.

Troubleshooting and inspection

Regular inspection of the cylinder head and valve seats can prevent premature compressor failure. Monitoring for signs of air leakage or abnormal temperature fluctuations helps in timely maintenance of the air brake system.

OE cross-reference

12 03 10 (Compressor Cylinder Head) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 4120908012.

Other OEMs

MAN

  • 51541146081
  • 51.54114.6081
  • 51.54114-6081

WABCO

  • 4120908042
  • 4120908032
  • 4120908012
  • 412.090.804.2
  • 412.090.803.2
  • 412.090.801.2
  • 412 090 804 2
  • 412 090 803 2
  • 412 090 801 2

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
MAN
WABCO

FAQ

What is the function of a compressor cylinder head?
The cylinder head seals the compression chamber from above and houses the inlet and discharge valve seats, directly influencing air output and temperature.
Can this part be used to rebuild an existing compressor?
Yes, this component allows a workshop technician to rebuild an air brake compressor in place instead of replacing the entire unit.
Is this part compatible with WABCO systems?
This cylinder head is designed to be compatible with WABCO systems and other heavy commercial vehicle air brake setups.
What should I check during installation?
Technicians should ensure all mating surfaces are clean and that mounting bolts are tightened to correct torque to prevent pressure leaks.
What are the OE reference numbers of this part?
12 03 10 directly replaces WABCO OE number 4120908012.