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AC63ZA S1 Knorr-Bremse Compatible Cylinder Head

15 05 10

Summary

This cylinder head is a heavy-duty grade component designed for air brake compressors. It is compatible with Knorr-Bremse systems and ensures efficient sealing of the compression chamber. This part allows workshop technicians to perform precise rebuilds on existing compressor units. Equivalent to OE Knorr-Bremse AC63ZAS1.

Product identifiers
EAN Code8699031034768
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Compatible OEM Codes

  • IVECO
    • 99440223 S1
    • 99440222 S1
    • 65256373 S1
    • 65006373 S1
    • 65006372 S1
  • KNORR-BREMSE
    • AC63ZBG S1
    • AC63ZB S1
    • AC63ZAG S1
    • AC63ZA S1

Description

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.

This component is essential for maintaining pneumatic system integrity by housing the inlet and discharge valve seats, internal air passages, and cooling cavities. By replacing only the head, workshop technicians can effectively rebuild a compressor in place rather than replacing the entire unit, making it a cost-effective solution for fleet maintenance.

The part is compatible with Knorr-Bremse systems. When selecting a replacement, it is important to verify the specific architecture required, as heads vary between single-cylinder, twin-cylinder, air-cooled, or water-cooled configurations to ensure proper thermal management and air output.

During installation, technicians should carefully inspect the cylinder block surface and ensure all valve seats are correctly seated to prevent pressure leaks. Proper seating of the head is critical for maintaining stable operating temperatures under high load. Consult your authorized distributor.

OE cross-reference

15 05 10 (Compressor Cylinder Head) is the equivalent of the Knorr-Bremse OE number. This part directly replaces Knorr-Bremse OE number AC63ZAS1.

Other OEMs

IVECO

  • 99440223 S1
  • 99440222 S1
  • 65256373 S1
  • 65006373 S1
  • 65006372 S1

KNORR-BREMSE

  • AC63ZBG S1
  • AC63ZB S1
  • AC63ZAG S1
  • AC63ZA S1

Compatible Vehicles

Compatible Vehicles
BrandModelModel TypeEngine
IVECO
KNORR-BREMSE

FAQ

What function does the cylinder head serve in a compressor?
It sits atop the cylinder block to seal the compression chamber and houses the valve seats and internal air passages.
Can this part be used for any air compressor?
No, selection must be based on whether your system requires a single-cylinder, twin-cylinder, air-cooled, or water-cooled design.
Why replace just the cylinder head instead of the whole unit?
Replacing the head allows a technician to rebuild the compressor in place, providing a professional repair without replacing the entire assembly.
What should I check before installing a new head?
Ensure the cylinder block surface is clean and inspect all valve seats to prevent pressure loss or overheating during operation.
What are the OE reference numbers of this part?
15 05 10 directly replaces Knorr-Bremse OE number AC63ZAS1.