Skip to content

944 Views Updated

LK3812 S1 Knorr-Bremse Compatible Cylinder Head

12 14 50

Summary

This compressor cylinder head is a high-strength component designed for air brake compressors. It serves as the top cover to seal the compression chamber, ensuring optimal air output and thermal stability for heavy commercial vehicle air systems. Compatible with Knorr-Bremse systems. Equivalent to OE Knorr-Bremse LK3812S1.

Product identifiers
EAN Code8699031021218
Ready to Order
Get Information

Compatible OEM Codes

  • KNORR-BREMSE
    • LK3927 S1
    • LK3812 S1
  • MAN
    • 51.54000-7079 S1

Description

What does a compressor cylinder head do?

This 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. It is a critical component within the air brake system, designed to allow workshop technicians to rebuild a compressor in place rather than replacing the entire unit.

Compatibility and system function

This part is compatible with Knorr-Bremse systems. It functions by providing the necessary seats for inlet and discharge valves, internal air passages, and cooling cavities, which directly governs both the compressor's air output and its running temperature during operation.

Installation and maintenance

When performing maintenance, technicians should ensure that all valve seats and internal passages are inspected for debris or wear. Proper installation of this cylinder head is vital to maintain system pressure and prevent leaks in the pneumatic circuit. Consult your authorized distributor for installation guidance.

Selection guidance

The selection of this component depends on the specific architecture of the compressor, such as whether it is an air-cooled or water-cooled type. Always verify compatibility with the specific compressor unit to ensure correct fitment.

OE cross-reference

12 14 50 (Compressor Cylinder Head) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number LK3812S1.

Other OEMs

KNORR-BREMSE

  • LK3927 S1
  • LK3812 S1

MAN

  • 51540007079S1
  • 51.54000-7079 S1

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE
MAN

FAQ

What is the function of a compressor cylinder head?
It seals the compression chamber from above and houses the inlet/discharge valve seats and internal air passages to regulate air output.
Can this part be used to rebuild an existing compressor?
Yes, it is designed as a service component that allows technicians to rebuild a compressor in place instead of replacing the whole unit.
Does this component affect the compressor temperature?
Yes, because it contains the cooling cavities and air passages, it directly governs the running temperature of the compressor.
How do I ensure I am selecting the correct head?
Selection should be based on the specific compressor architecture and reference number to ensure correct fitment within the pneumatic system.
What are the OE reference numbers of this part?
12 14 50 directly replaces Knorr-Bremse OE number LK3812S1.