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LK3509 S2 Cylinder Head for Knorr-Bremse Systems

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LK3509 S2 Knorr-Bremse Compatible Cylinder Head

12 19 50

Summary

This cylinder head is a high-strength component designed for air brake compressor repair. It is compatible with Knorr-Bremse systems, serving as a critical part for rebuilding compressor units to ensure reliable air output and thermal management in heavy commercial vehicle applications. Equivalent to OE Knorr-Bremse LK3509S2.

Product identifiers
EAN Code8699031029306
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Compatible OEM Codes

  • KNORR-BREMSE
    • LK3510 S2
    • LK3509 S2
  • MAN
    • 51.54101-7186 S2

Description

What does a cylinder head do?

This cylinder head functions as the essential cast component that seals the compression chamber of an air brake compressor from above. By sitting atop the cylinder block, it creates the necessary seal to maintain pressure within the system. This component allows workshop technicians to perform precise rebuilds of existing compressor units, extending the service life of the pneumatic system without requiring a complete unit replacement.

Compatibility and application

This specific part is designed to be compatible with Knorr-Bremse systems. It serves as a direct replacement for worn or damaged heads in heavy commercial vehicle air brake compressors. The design ensures that the internal air passages and valve seats remain properly aligned during operation.

Installation and maintenance

When performing installation, technicians should carefully inspect the cylinder block surface and ensure all valve seats are clean. Proper seating of the head is critical to preventing air leaks and maintaining stable compression levels. Always check that all mounting bolts are torqued to the required specifications to prevent uneven pressure distribution.

Troubleshooting guidance

Regular inspection of the cylinder head and its associated seals can help prevent system pressure drops. If air leakage is detected at the top of the compressor, this component may need evaluation or replacement.

OE cross-reference

12 19 50 (Compressor Cylinder Head) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number LK3509S2.

Other OEMs

KNORR-BREMSE

  • LK3510 S2
  • LK3509 S2

MAN

  • 51541017186S2
  • 51.54101-7186 S2

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE
MAN

FAQ

What is the function of this cylinder head?
It seals the compression chamber from above and houses the inlet and discharge valve seats, directly governing air output.
Can this be used for any compressor?
No, selection must be based on the specific compressor architecture and compatibility with Knorr-Bremse systems.
How do I know if my cylinder head needs replacement?
Symptoms include air leakage from the top of the compressor or inconsistent air pressure output in the pneumatic system.
What should be checked during installation?
Ensure all valve seats are clean and that mounting surfaces are perfectly flat to prevent leaks during operation.
What are the OE reference numbers of this part?
12 19 50 directly replaces Knorr-Bremse OE number LK3509S2.