25 12 50 Cummins and Knorr-Bremse Compatible Cylinder Head
25 12 50
Summary
This compressor cylinder head is a high-strength component designed for heavy commercial vehicle air brake systems. It is compatible with Cummins and Knorr-Bremse systems, ensuring reliable compression chamber sealing and temperature regulation for professional workshop repairs. Equivalent to OE Cummins 3286430S1 and 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 compressor cylinder head do?
This compressor cylinder head serves as the critical cast service component positioned atop the air brake compressor cylinder block. It functions to seal the compression chamber from above, acting as a vital component for workshop technicians performing in-place rebuilds of compressor units. By replacing this part, the compressor's air output and running temperature can be effectively maintained without replacing the entire assembly.Vehicle and system compatibility
This component is compatible with Cummins and Knorr-Bremse systems used in heavy commercial vehicle applications. It ensures a precise seal within the compression chamber, supporting the structural integrity of the pneumatic system under high-pressure operating conditions.Installation and maintenance guidance
When performing installation, technicians should verify the seating of inlet and discharge valves within the head. It is essential to check that the internal air passages and cooling cavities are free from debris to ensure optimal thermal management and air flow efficiency during operation.Selection and performance
Selecting the correct cylinder head is vital for maintaining system pressure. Always ensure the part matches the specific architecture of the existing compressor to guarantee proper fitment and performance within the air brake system.OE cross-reference
25 12 50 (Compressor Cylinder Head) is the equivalent of the Cummins and Knorr-Bremse OE numbers. This part directly replaces Cummins OE numbers 3286430S1, 3286446S1, 3286449S1, 3286646S1, 3286649S1. It also 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 rather than replacing the entire unit.
Which systems are these parts compatible with?
These parts are designed to be compatible with Cummins and Knorr-Bremse systems in heavy commercial vehicles.
How can I ensure I am selecting the correct cylinder head?
Selection should always be based on the specific architecture of the compressor to match its design and operating requirements.
What are the OE reference numbers of this part?
25 12 50 directly replaces Cummins OE numbers 3286430S1, 3286446S1, 3286449S1, 3286646S1, 3286649S1. It also replaces Knorr-Bremse OE number LK3850S1.