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4898367 S1 Compressor Cylinder Head for Cummins Engines

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4898367 S1 Cummins Compatible Compressor Cylinder Head

25 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 that seals the compression chamber, ensuring stable air output and thermal management for Cummins systems. Built with heavy-duty grade materials to withstand high-pressure operating environments. Equivalent to OE Cummins 4898367S1.

Product identifiers
EAN Code8699031044569
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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 acts as the cast service component that sits on top of an air brake compressor's cylinder block, sealing the compression chamber from above. This part is essential for workshop technicians looking to rebuild a compressor in place rather than replacing the entire unit. It functions as the compressor cover or top cover, housing the inlet and discharge valve seats, internal air passages, and cooling cavities.

Compatibility with Cummins systems

This specific component is designed to be compatible with Cummins systems. It ensures the integrity of the compression cycle by maintaining a tight seal under high pressure, which directly governs both the compressor's air output and its running temperature during heavy-duty operation.

Installation and maintenance

When performing maintenance or repairs, technicians should verify the specific architecture of the compressor to ensure correct fitment. The cylinder head must match the existing block to ensure proper alignment of valve seats and cooling channels. Proper installation ensures optimal air delivery and prevents leaks within the pneumatic circuit.

Selection guidance

Consult your authorized distributor to ensure this component matches your specific engine configuration and compressor model.

OE cross-reference

25 11 50 (Compressor Cylinder Head) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 4898367S1.

Other OEMs

CUMMINS

  • 4898367 S1
  • 4898083 S1
  • 3964688 S1
  • 3964687 S1
  • 3957725 S1
  • 3957724 S1

KNORR-BREMSE

  • LK3846 S1
  • LK3839 S1

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
CUMMINS
KNORR-BREMSE

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 for any air brake compressor?
Selection must be based on the specific compressor architecture and engine compatibility to ensure correct valve seat alignment.
What are the symptoms of a failing cylinder head?
Technicians may observe decreased air output, internal pressure leaks, or abnormal running temperatures in the pneumatic system.
Is it better to replace the whole compressor or just the head?
Replacing only the cylinder head allows for an efficient in-place rebuild, saving time and resources during workshop service.
What are the OE reference numbers of this part?
25 11 50 directly replaces Cummins OE number 4898367S1.