A4571306915 Citaro OM 457 HLA Twin Cylinder Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor serves as a critical engine-driven component within the air brake system, specifically engineered to meet the high air demand of heavy commercial vehicles. By utilizing two piston-cylinder assemblies, this unit provides efficient compression and rapid reservoir filling, ensuring consistent pneumatic pressure for braking and suspension systems.

Vehicle and engine compatibility

This specific model is compatible with Mercedes-Benz Citaro (O 530) variants, including the Citaro G, GN3, LÜ, N, and MUE models featuring the OM 457 HLA engine. The unit is designed to integrate seamlessly with these specific engine configurations to maintain optimal system performance.

Installation and maintenance guidance

For professional installation and maintenance, technicians should verify the M26x1,5 air inlet and outlet ports and ensure the water cooling connections (M16x1,5) are correctly seated. This water-cooled unit includes an ESS feature and a water-cooled valve plate to manage thermal loads during continuous operation. Always check the through drive interface during replacement.

System performance and maintenance

To ensure maximum service life, it is essential to maintain the air dryer and intake filters. Proper installation according to the specified port sizes and mounting requirements prevents pressure drops in the braking circuit. Consult your authorized distributor.

OE cross-reference

1100 255 001 (Twin Cylinder Compressor) is the equivalent of the Mercedes-Benz OE number. This part directly replaces Mercedes-Benz OE number A4571306915.