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LP3928 S1 Cylinder Head for Air Brake Compressors

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LP3928 S1 Knorr-Bremse Compatible Cylinder Head

12 11 50

Summary

This compressor cylinder head is a high-strength component designed for heavy commercial vehicle air brake systems. It is compatible with Knorr-Bremse systems and serves as a critical part for rebuilding air compressors to maintain optimal air output and temperature control. Equivalent to OE Knorr-Bremse LP3928S1.

Product identifiers
EAN Code8699031021188
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Compatible OEM Codes

  • KNORR-BREMSE
    • LP3943 S1
    • LP3940 S1
    • LP3934 S1
    • LP3928 S1
    • LP3830 S1
    • LK3832 S1
    • LK3826 S1
    • LK3809 S1
    • LK3808 S1
    • LK3806 S1
    • LK3805 S1
    • LK3802 S1
  • MAN
    • 51.54101-7204 S1
    • 51.54101-7201 S1
    • 51.54101-7195 S1
    • 51.54101-7189 S1
    • 51.54101-7150 S1

Description

What does a compressor cylinder head do?

This compressor cylinder head is a cast service component that sits on top of an air brake compressor's cylinder block and seals the compression chamber from above. It is engineered to allow a workshop technician to rebuild a compressor in place rather than replacing the entire unit, ensuring efficient maintenance of the pneumatic system.

Compatibility and application

This component is compatible with Knorr-Bremse systems and is used in various heavy commercial vehicle applications. The design ensures it functions effectively within the air brake compressor assembly to maintain pressure stability.

Installation and maintenance

When performing installation, technicians should verify that all sealing surfaces are clean and inspect the valve seats within the head. Proper seating is vital to prevent air leaks and ensure the unit maintains its rated performance during high-load operations.

Selection guidance

Consult your authorized distributor for specific fitment guidance.

OE cross-reference

12 11 50 (Compressor Cylinder Head) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number LP3928S1.

Other OEMs

KNORR-BREMSE

  • LP3943 S1
  • LP3940 S1
  • LP3934 S1
  • LP3928 S1
  • LP3830 S1
  • LK3832 S1
  • LK3826 S1
  • LK3809 S1
  • LK3808 S1
  • LK3806 S1
  • LK3805 S1
  • LK3802 S1

MAN

  • 51541017204S1
  • 51541017201S1
  • 51541017195S1
  • 51541017189S1
  • 51541017150S1
  • 51.54101-7204 S1
  • 51.54101-7201 S1
  • 51.54101-7195 S1
  • 51.54101-7189 S1
  • 51.54101-7150 S1

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE
MAN

FAQ

What is the function of a compressor cylinder head?
The cylinder head seals the compression chamber from above and houses the seats for the inlet and discharge valves, directly governing air output.
Can this part be used to rebuild an existing compressor?
Yes, this component allows workshop technicians to rebuild a compressor in place, which is more efficient than replacing the entire unit.
What should be checked during installation?
Technicians should ensure all sealing surfaces are clean and verify that the internal air passages and valve seats are free of debris.
How do I ensure compatibility with my system?
Selection should always be based on the specific compressor's reference number to ensure correct fitment with existing pneumatic architecture.
What are the OE reference numbers of this part?
12 11 50 directly replaces Knorr-Bremse OE number LP3928S1.