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LK3806 S1 Cylinder Head for Air Brake Compressors

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LK3806 S1 Knorr-Bremse Compatible Cylinder Head

12 11 50

Summary

This cylinder head is a critical service component designed for air brake compressors. It is compatible with Knorr-Bremse systems and serves as a high-strength replacement part to facilitate compressor rebuilding in workshop environments. Equivalent to OE Knorr-Bremse LK3806S1.

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?

This cylinder head acts as the cast service component that sits atop the air brake compressor's cylinder block, sealing the compression chamber from above. It plays a vital role in the pneumatic system by housing the seats for the inlet and discharge valves, internal air passages, and cooling cavities. This component directly governs both the compressor's air output and its operating temperature.

Compatible systems and selection

This part is compatible with Knorr-Bremse systems. Due to variations in compressor architecture, selection should always be based on the specific compressor's reference to ensure correct fitment within the pneumatic assembly.

Installation and maintenance

When performing maintenance, technicians should inspect the valve seats and cooling channels for any signs of erosion or blockage. Replacing only the cylinder head allows for an efficient in-place rebuild of the compressor rather than a full unit replacement, saving time during service.

Rebuilding guidance

Check the compatibility list to ensure this component matches your specific compressor configuration.

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 LK3806S1.

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 and houses the valve seats and air passages, directly influencing air output and temperature regulation.
Can this part be used to rebuild an existing compressor?
Yes, this component is designed to allow workshop technicians to rebuild a compressor in place rather than replacing the entire unit.
How do I ensure correct compatibility with my system?
Selection should be based on the specific compressor architecture and its own reference number to ensure a proper seal and fitment.
What should be checked during installation?
Technicians should verify that valve seats are clean and that all cooling cavities are free from debris to ensure optimal thermal management.
What are the OE reference numbers of this part?
12 11 50 directly replaces Knorr-Bremse OE number LK3806S1.