A0021301115 Cylinder Head for Mercedes-Benz OM 457 HLA

What does a cylinder head do?

This cylinder head is a precision-engineered component designed to close the top of the air brake compressor's cylinder block. It provides the necessary sealing for the combustion chamber and houses the intake and discharge valve seats. By maintaining airtight integrity, it ensures that the compressor produces consistent pneumatic pressure required for heavy-duty braking systems.

Vehicle and engine compatibility

This specific part is engineered for Mercedes-Benz vehicles equipped with OM 457 HLA engines. It is a vital replacement component for maintaining optimal air pressure within the pneumatic system of these heavy commercial vehicles. The part is manufactured to match the exacting dimensions required for seamless integration into the compressor assembly.

Installation and maintenance

When performing maintenance or repairs, technicians should inspect the sealing face for any signs of warping or surface irregularities. Proper installation requires following the specific torque sequences to prevent gasket leaks or uneven pressure distribution. Regular checks of the valve seating area are recommended to ensure long-term air-tight performance.

Troubleshooting and selection

Consult your authorized distributor for more information on compatibility and installation.

OE cross-reference

11 25 50 (Compressor Cylinder Head) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A0021301115.