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LK3857 S2 Knorr-Bremse Compatible Compressor Cylinder Head

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LK3857 S2 Compressor Cylinder Head for Knorr-Bremse

19 10 50

Summary

This compressor cylinder head is a heavy-duty grade component designed for air brake compressor systems. It is compatible with Knorr-Bremse systems and ensures reliable compression chamber sealing within heavy commercial vehicle air systems. Equivalent to OE Knorr-Bremse LK3857S2.

Product identifiers
EAN Code8699031025933
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Compatible OEM Codes

  • KNORR-BREMSE
    • LK3857 S2
  • BMC
    • 57RS300781 S2

Description

What does a compressor cylinder head do?

This compressor cylinder head serves as a critical service component that sits atop the air brake compressor cylinder block. It is engineered to seal the compression chamber from above, acting as a vital bridge within the pneumatic system to maintain pressure and structural integrity during high-load operation.

Vehicle and system compatibility

This component is compatible with Knorr-Bremse systems and is designed to allow workshop technicians to rebuild a compressor in place rather than replacing the entire unit. By replacing only the head, maintenance efficiency is increased for heavy commercial vehicle fleets.

Installation and maintenance

When performing installation, technicians should verify the seating for the inlet and discharge valves. Ensuring the internal air passages are clear and the cooling cavities are free of debris is essential for maintaining stable operating temperatures and preventing air output fluctuations.

Selection guidance

Consult your authorized distributor to ensure this component matches your specific compressor architecture, whether it be a single-cylinder or twin-cylinder configuration.

OE cross-reference

19 10 50 (Compressor Cylinder Head) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number LK3857S2.

Other OEMs

BMC

  • 57RS300781 S2

KNORR-BREMSE

  • LK3857 S2

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
BMC
KNORR-BREMSE

FAQ

What is the function of a compressor cylinder head?
The cylinder head seals the compression chamber from above and contains 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 a workshop technician to rebuild a compressor in place instead of replacing the entire unit.
What should be checked during installation?
Technicians should ensure that the valve seats and internal air passages are correctly aligned and that cooling cavities are unobstructed.
How do I ensure compatibility with my system?
Selection should always be based on the specific compressor architecture and its reference number to ensure correct fitment.
What are the OE reference numbers of this part?
19 10 50 directly replaces Knorr-Bremse OE number LK3857S2.