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K105789K50 Knorr-Bremse Compatible Compressor Cylinder Head

12 21 10

Summary

This compressor cylinder head is a critical service component designed for air brake compressors. It functions as the top cover to seal the compression chamber, ensuring efficient air output and temperature regulation. Compatible with Knorr-Bremse systems and built with high-strength components for heavy commercial vehicle service. Equivalent to OE Knorr-Bremse K105789K50.

Product identifiers
EAN Code8699031059440
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Compatible OEM Codes

  • KNORR-BREMSE
    • K105789K99
    • K105789K50
  • MAN
    • 51.54114-6092

Description

What does a compressor cylinder head do?

The compressor cylinder head serves as the essential cast component situated atop the air brake compressor cylinder block. By sealing the compression chamber from above, it enables workshop technicians to perform precise rebuilds on existing units rather than requiring a full compressor replacement. This component is vital for maintaining consistent air pressure within the pneumatic braking system.

System compatibility and function

This specific part is designed for compatibility with Knorr-Bremse systems. It functions by housing the inlet and discharge valve seats, internal air passages, and necessary cooling cavities. These features directly govern both the overall air output and the operating temperature of the compressor during heavy-duty operation.

Installation and maintenance guidance

When performing maintenance, technicians should inspect the valve seats and internal passages for any signs of wear or buildup. Ensuring a proper seal between the cylinder head and the block is critical to prevent pressure loss in the braking circuit. Always verify compatibility with existing compressor architectures before installation.

Selection and troubleshooting

Selecting the correct head ensures optimal performance and prevents system leaks. For accurate fitment, always match the component to the existing compressor unit used in the vehicle's braking system.

OE cross-reference

12 21 10 (Compressor Cylinder Head) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number K105789K50.

Other OEMs

KNORR-BREMSE

  • K105789K99
  • K105789K50

MAN

  • 51541146092
  • 51.54114.6092
  • 51.54114-6092

Related Products

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
KNORR-BREMSE
MAN

FAQ

What is the function of a compressor cylinder head?
It sits on top of the cylinder block to seal the compression chamber and houses the valve seats and air passages necessary for air production.
Can this part be used to rebuild an existing compressor?
Yes, this component allows a workshop technician to rebuild a compressor in place by replacing only the top cover instead of the whole unit.
Is this compatible with Knorr-Bremse systems?
This component is designed to be compatible with Knorr-Bremse systems used in heavy commercial vehicle braking applications.
What should I check during installation?
Technicians should ensure all internal air passages are clear and that the seal between the head and block is perfectly seated to avoid pressure drops.
What are the OE reference numbers of this part?
12 21 10 directly replaces Knorr-Bremse OE number K105789K50.