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912 551 003 0 S1 WABCO Compatible Compressor Cylinder Head

32 01 50

Summary

This compressor cylinder head is a heavy-duty grade component designed to seal the compression chamber of air brake compressors. It is compatible with WABCO systems and serves as a critical replacement part for workshop rebuilds of air brake compressors. Equivalent to OE WABCO 9125510030S1.

Product identifiers
EAN Code8699031072753
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Compatible OEM Codes

  • WABCO
    • 912 551 003 0 S1
    • 912 551 001 0 S1
  • NISSAN UD TRUCK
    • 1450100Z1B S1
    • 1450100Z0A S1

Description

This 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. By replacing this component, workshop technicians can rebuild an existing compressor in place rather than replacing the entire unit, which significantly optimizes maintenance efficiency.

This part is compatible with WABCO systems. It is designed to house the seats for the inlet and discharge valves, manage internal air passages, and facilitate cooling through integrated cavities. Proper installation ensures stable air output and efficient temperature regulation during heavy-duty operation.

When performing a rebuild, technicians should inspect the cylinder block surface and valve seats to ensure a proper seal. Selecting the correct head type—whether it is an air-cooled or water-cooled design—is essential to match the specific architecture of the compressor being serviced.

Consult your authorized distributor.

OE cross-reference

32 01 50 (Compressor Cylinder Head) is the equivalent of the WABCO OE number. This part directly replaces WABCO OE number 9125510030S1.

Other OEMs

NISSAN UD TRUCK

  • 1450100Z1B S1
  • 1450100Z0A S1

WABCO

  • 9125510030S1
  • 9125510010S1
  • 912 551 003 0 S1
  • 912 551 001 0 S1

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
NISSAN UD TRUCK
WABCO

FAQ

What is the function of a compressor cylinder head?
The cylinder head seals the compression chamber from above and contains the seats for inlet and discharge valves, directly governing air output and temperature.
Can this part be used to rebuild an existing compressor?
Yes, this component allows workshop technicians to rebuild a compressor in place, providing a cost-effective alternative to replacing the entire unit.
What should be checked during installation?
Technicians should ensure the cylinder block surface is clean and inspect the valve seats to ensure a secure, airtight seal during assembly.
Is this part compatible with WABCO systems?
This component is designed to be compatible with WABCO systems and follows standard heavy-duty specifications.
What are the OE reference numbers of this part?
32 01 50 directly replaces WABCO OE number 9125510030S1.