1100 255 001 Mercedes-Benz Twin Cylinder Air Compressor

What does a twin cylinder compressor do?

This twin cylinder compressor is an engine-driven unit in the air brake system of heavy commercial vehicles that generates compressed air using two piston-cylinder assemblies. By utilizing two compression strokes per crankshaft revolution, it delivers higher air output than single-cylinder types and fills the reservoirs faster. This specific model is a water-cooled unit designed to manage thermal loads effectively during continuous operation.

Compatible vehicles and engines

This component is compatible with Mercedes-Benz models including Setra Series 400 (MultiClass, ComfortClass, TopClass), Mercedes-Benz Integro, Travego, Conecto, Intouro, Axor 2, Citaro, Capacity, Tourismo, Touro, and O 403. It is specifically engineered to work with OM 457 HLA, OM 457 LA, OM 457 hLA, and OM 447 HLA engines to ensure seamless integration into the pneumatic system.

Installation and maintenance

Technicians should verify the mounting interface and port connections during installation. This unit features an M26x1.5 air inlet and outlet port, along with M16x1.5 water inlet and outlet ports. Maintenance of the cooling system and air dryer is essential to protect the water-cooled valve plate and ensure the longevity of the internal piston assemblies.

Selection guidance

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

OE cross-reference

1100 255 001 (Twin Cylinder Compressor) is the equivalent of the Mercedes-Benz and WABCO OE numbers. This part directly replaces Mercedes-Benz OE number 4571306915. It also replaces WABCO OE number 9125102000.