25 27 10 Cylinder Head for Air Brake Compressors

What does a compressor cylinder head do?

A compressor cylinder head is the essential cast component that seals the top of an air brake compressor's cylinder block while providing seating for the inlet and discharge valves. It is responsible for maintaining air pressure without leakage and facilitating the routing of compressed air through the discharge port. This part is vital for the efficient operation of pneumatic braking systems in heavy commercial vehicles.

Vehicle and engine compatibility

This cylinder head is engineered to be compatible with Cummins ISLe and ISBe engines found in various heavy-duty applications. It is fitted to models such as Dongfeng Captain, KamAZ 6520, Iveco Bus Metro, and Ford Trucks Cargo, as well as several other heavy vehicle series. For correct fitment, always verify the compressor type and engine specifications.

Installation and maintenance

When performing maintenance or rebuilding a compressor, inspecting the cylinder head for cracks or seating irregularities is critical. This component works in tandem with piston rings and valve assemblies to ensure consistent pressure delivery. Ensuring a clean mating surface during installation helps maintain an airtight seal under high-pressure operating conditions.

Selection guidance

Check the compatibility list.

OE cross-reference

25 27 10 (Compressor Cylinder Head) is the equivalent of the Cummins and Knorr-Bremse OE numbers. This part directly replaces Cummins OE number 5290036. It also replaces Knorr-Bremse OE numbers K006284, K023811.