20569224 S1 Volvo NH12 Compatible Cylinder Head

What does a compressor cylinder head do?

This compressor cylinder head is a vital component of the air brake compressor assembly, responsible for sealing the combustion chamber and managing air flow within the compression cycle. It is engineered from high-strength components to withstand the intense thermal and pressure fluctuations inherent in heavy commercial vehicle air systems.

Compatible Volvo NH12 models

This specific cylinder head is designed for use in Volvo NH12 trucks, covering various power outputs including the NH 12/340, NH 12/380, NH 12/420, and NH 12/460 models. It functions as a direct replacement for the original unit to maintain optimal pneumatic performance in the braking system.

Installation and maintenance

During installation, technicians should ensure all mating surfaces are clean and inspect the valve plate and gaskets for any signs of wear. Proper torque application on the head bolts is essential to prevent pressure leaks or uneven sealing across the cylinder block.

Troubleshooting air leaks

Regular inspection of the cylinder head helps prevent air leaks that could lead to increased compressor duty cycles or system pressure drops.

OE cross-reference

13 01 11 (Compressor Cylinder Head) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20569224S1.