3964688 S1 Cummins Compatible Compressor Cylinder Head
25 11 50
Summary
This compressor cylinder head is a critical service component designed for heavy commercial vehicle air brake compressors. It is compatible with Cummins systems and provides a high-strength seal for the compression chamber to ensure reliable air output and temperature regulation. Equivalent to OE Cummins 3964688S1.
| EAN Code | 8699031044569 |
|---|
Ready to Order
Compatible OEM Codes
-
CUMMINS
- 4898367 S1
- 4898083 S1
- 3964688 S1
- 3964687 S1
- 3957725 S1
- 3957724 S1
-
KNORR-BREMSE
- LK3846 S1
- LK3839 S1
Description
What does a compressor cylinder head do?
A 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.Compatibility and application
This part is essential for workshop technicians performing in-place rebuilds of air brake compressors, allowing for efficient maintenance without replacing the entire unit. It serves as the housing for inlet and discharge valve seats, internal air passages, and cooling cavities, which directly governs both the air output and the running temperature of the unit.Maintenance and replacement
Designed to withstand heavy-duty operating conditions, this component is compatible with Cummins systems. It ensures stable performance within the pneumatic system by maintaining proper pressure and thermal stability during high-load cycles.Selection guidance
When selecting a replacement, always verify compatibility based on the specific compressor architecture. Consult your authorized distributor to ensure correct fitment for your specific engine configuration.OE cross-reference
25 11 50 (Compressor Cylinder Head) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3964688S1.Other OEMs
CUMMINS
- 4898367 S1
- 4898083 S1
- 3964688 S1
- 3964687 S1
- 3957725 S1
- 3957724 S1
KNORR-BREMSE
- LK3846 S1
- LK3839 S1
Compatible Vehicles
| Brand | Model | Model Type | Engine |
|---|---|---|---|
| CUMMINS | |||
| KNORR-BREMSE |
FAQ
What is the function of a compressor cylinder head?
It seals the compression chamber from above and houses the inlet and discharge valve seats, regulating air output and temperature.
Can this part be used to rebuild an existing compressor?
Yes, it allows workshop technicians to rebuild a compressor in place rather than replacing the entire assembly.
How do I ensure correct fitment for my engine?
Selection should always be based on the specific compressor architecture and reference numbers to match your engine option.
What are common symptoms of a faulty cylinder head?
Issues may include inconsistent air output, temperature regulation problems, or leaks within the compression chamber.
What are the OE reference numbers of this part?
25 11 50 directly replaces Cummins OE number 3964688S1.