LK3850 S1 Knorr-Bremse Compatible Cylinder Head
25 12 50
Summary
This cylinder head is a high-strength component designed for air brake compressors. It functions as the top seal for the compression chamber, ensuring optimal air output and temperature regulation for heavy commercial vehicle braking systems. Compatible with Knorr-Bremse systems. Equivalent to OE Knorr-Bremse LK3850S1.
| EAN Code | 8699031044798 |
|---|
Ready to Order
Compatible OEM Codes
-
CUMMINS
- 3286649 S1
- 3286646 S1
- 3286449 S1
- 3286446 S1
- 3286430 S1
-
KNORR-BREMSE
- LK3850 S1
Description
What does a cylinder head do?
This cylinder head acts as the critical cast component that sits atop the air brake compressor cylinder block, sealing the compression chamber from above. It is engineered to facilitate efficient air compression and maintain stable operating temperatures during heavy-duty cycles. By replacing this part, workshop technicians can effectively rebuild an existing compressor unit rather than replacing the entire assembly.Compatible systems and architecture
This component is compatible with Knorr-Bremse systems and is designed to fit specific compressor architectures. Whether the system requires a single-cylinder or twin-cylinder configuration, this part ensures the internal air passages and valve seats remain properly sealed under pressure.Installation and maintenance
During installation, technicians should carefully inspect the cylinder block surface and ensure all valve seats are seated correctly to prevent air leaks. Proper maintenance of the head and its associated seals is vital for maintaining consistent air pressure throughout the pneumatic braking system.Selection guidance
Selecting the correct head depends on the specific architecture of the compressor, such as whether it features cooling fins or jacket channels for heat dissipation.OE cross-reference
25 12 50 (Compressor Cylinder Head) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number LK3850S1.Other OEMs
CUMMINS
- 3286649 S1
- 3286646 S1
- 3286449 S1
- 3286446 S1
- 3286430 S1
KNORR-BREMSE
- LK3850 S1
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| CUMMINS | |||
| KNORR-BREMSE |
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 governing air output.
Can this part be used to rebuild an existing compressor?
Yes, this component allows workshop technicians to rebuild a compressor in place by replacing only the top section rather than the whole unit.
How do I ensure compatibility with my braking system?
Selection should be based on the specific compressor architecture and reference numbers, as different engine options may require different head types.
What should be checked during installation?
Technicians should verify that valve seats are correctly aligned and that all air passages are clear to ensure proper pressure regulation.
What are the OE reference numbers of this part?
25 12 50 directly replaces Knorr-Bremse OE number LK3850S1.