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LK3826 S1 Compressor Cylinder Head for Air Brake Systems

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LK3826 S1 Compatible Compressor Cylinder Head

12 11 50

Summary

This compressor cylinder head is a precision-engineered component designed for heavy commercial vehicle air brake compressors. It serves as the critical top cover to seal the compression chamber, ensuring optimal air output and thermal stability in demanding service environments. Compatible with Knorr-Bremse systems. Equivalent to OE Knorr-Bremse LK3826S1.

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 compressor cylinder head do?

This compressor cylinder head acts as the essential cast service component that sits atop an air brake compressor's cylinder block. By sealing the compression chamber from above, it allows workshop technicians to rebuild a compressor in place rather than replacing the entire unit. This component directly governs both the air output and the running temperature of the system.

Vehicle and system compatibility

Designed for high-performance air brake compressors, this part is suitable for various compressor architectures. It is compatible with Knorr-Bremse systems and provides a reliable solution for maintaining pneumatic pressure in heavy commercial vehicles. Technicians can rely on this part to restore original performance levels during engine or brake system overhauls.

Installation and maintenance guidance

When performing installation, ensure the cylinder block surface is clean and free of debris to ensure a proper seal. It is critical to check the seating of inlet and discharge valves within the head to prevent air leaks. Maintaining correct torque specifications during assembly is vital for long-term durability under high pressure.

Selection considerations

Always verify the specific compressor architecture before selection, as requirements vary between single-cylinder and twin-cylinder configurations.

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 LK3826S1.

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 from above and houses the seats for inlet and discharge valves, directly controlling air output.
Can this part be used to rebuild a whole compressor?
Yes, this component allows a workshop technician to rebuild a compressor in place, serving as an efficient alternative to full unit replacement.
Is this compatible with Knorr-Bremse systems?
Yes, this component is designed to be compatible with Knorr-Bremse systems used in heavy commercial vehicle air brake applications.
What should I check during installation?
Ensure all internal air passages are clear and that valve seats are correctly positioned to maintain proper compression and temperature control.
What are the OE reference numbers of this part?
12 11 50 directly replaces Knorr-Bremse OE number LK3826S1.