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LK3802 S1 Cylinder Head for Knorr-Bremse Systems

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LK3802 S1 Knorr-Bremse Compatible Cylinder Head

12 11 50

Summary

This compressor cylinder head is a high-strength component designed for air brake compressors. It serves as the critical sealing component for the compression chamber, ensuring efficient air output and thermal stability within the pneumatic system. Equivalent to OE Knorr-Bremse LK3802S1.

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 cylinder head do?

A compressor cylinder head is the cast service component that sits on top of an air brake compressor's cylinder block and seals the compression chamber from above.

System compatibility and function

This component is vital for maintaining pneumatic pressure and controlling running temperatures within the air brake system. It contains the seats for the inlet and discharge valves, internal air passages, and necessary cooling cavities to ensure stable operation under heavy load.

Maintenance and installation

The part is compatible with Knorr-Bremse systems. Technicians should verify fitment based on the compressor's specific architecture, as different configurations may require specific port layouts or valve plate integrations.

Troubleshooting guidance

When performing maintenance, inspect the cylinder head for surface irregularities or leaks around the valve seats to ensure optimal compression performance.

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 LK3802S1.

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 cylinder head in an air brake compressor?
The cylinder head seals the compression chamber from above and houses the inlet and discharge valve seats, directly governing air output and temperature.
How can I ensure this head fits my compressor?
Selection should always be based on the specific compressor architecture and reference numbers to ensure correct valve seat alignment and port positioning.
Can this part be used to rebuild an existing unit?
Yes, this component allows workshop technicians to rebuild a compressor in place rather than requiring a full unit replacement.
What symptoms indicate a faulty cylinder head?
Loss of air pressure, excessive running temperature, or visible leaks around the valve seats often indicate that the cylinder head requires inspection or replacement.
What are the OE reference numbers of this part?
12 11 50 directly replaces Knorr-Bremse OE number LK3802S1.