A0021301115 Mercedes-Benz TOURISMO (O 350) OM 457 HLA Compressor Head

What does a compressor cylinder head do?

This compressor cylinder head serves as a critical component in the air brake system, sealing the top of the compressor cylinder block to facilitate high-pressure air production. It houses the valve seats and manages the discharge of compressed air while assisting in heat dissipation from the compression cycle. Built with heavy-duty grade materials, it ensures long-term durability under constant pressure fluctuations.

Compatible vehicles and engines

Specifically designed for Mercedes-Benz TOURISMO (O 350) models, including the Tourismo 15 RHD and Tourismo 16 RHD equipped with OM 457 HLA engines, this part maintains exact OE dimensions. This component allows for a precise rebuild of the existing compressor unit, restoring original performance levels without requiring a complete compressor replacement.

Installation and maintenance

For professional workshop technicians, it is essential to verify the bolt hole pattern and port dimensions against the existing unit to ensure a perfect seal. When installing this component, always use a new gasket and follow the manufacturer's specified torque sequence to prevent leaks or uneven pressure distribution within the pneumatic circuit.

Selection guidance

Consult your authorized distributor to confirm exact fitment for your specific engine configuration.

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.