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3286446 S1 Compressor Cylinder Head for Cummins Systems

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3286446 S1 Cummins Compatible Compressor Cylinder Head

25 12 50

Summary

This high-strength compressor cylinder head is designed for heavy commercial vehicle air brake compressors. It is compatible with Cummins systems and provides a durable solution for rebuilding compressor units to maintain optimal air output and temperature regulation in demanding service environments. Equivalent to OE Cummins 3286446S1.

Product identifiers
EAN Code8699031044798
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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?

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 fitment

This component is essential for the structural integrity of the air compression process, housing the seats for inlet and discharge valves, internal air passages, and cooling cavities. By replacing only the head, workshop technicians can efficiently rebuild a compressor in place rather than replacing the entire unit. This part directly governs both the air output and the running temperature of the compressor system.

Installation and maintenance

This cylinder head is compatible with Cummins systems. It serves as a reliable replacement for maintaining high-performance air brake systems in heavy commercial vehicles.

Troubleshooting guidance

When performing installation, technicians should verify that all valve seats and cooling passages are clear of debris. Ensuring a proper seal between the head and the cylinder block is critical to prevent pressure loss during the compression cycle.

OE cross-reference

25 12 50 (Compressor Cylinder Head) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3286446S1.

Other OEMs

CUMMINS

  • 3286649 S1
  • 3286646 S1
  • 3286449 S1
  • 3286446 S1
  • 3286430 S1

KNORR-BREMSE

  • LK3850 S1

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
CUMMINS
KNORR-BREMSE

FAQ

What function does this cylinder head serve?
It seals the compression chamber from above and houses the inlet and discharge valve seats, governing air output and temperature.
Can this part be used to rebuild an existing compressor?
Yes, this component allows workshop technicians to rebuild a compressor in place instead of replacing the whole unit.
Is this compatible with Cummins systems?
This part is designed to be compatible with Cummins systems used in heavy commercial vehicle air brake compressors.
What symptoms indicate a faulty cylinder head?
Loss of air pressure, abnormal running temperatures, or visible leaks around the cylinder block may indicate a faulty head.
What are the OE reference numbers of this part?
25 12 50 directly replaces Cummins OE number 3286446S1.