1100 255 020 (without gear) Twin Cylinder, Air Compressor

This twin cylinder air compressor is engineered to provide consistent pneumatic pressure for heavy commercial vehicle systems. Designed with a high-strength architecture, the unit features a Ø85.00 mm cylinder bore and a 56 mm stroke, delivering a total swept volume of 636cm³. The integrated water-cooling system and M26x1,5 inlet/outlet ports ensure optimal thermal management during operation.

1100 255 020 is the OE-equivalent of the MERCEDES BENZ 457 130 69 15 SP1 and WABCO 912 510 200 0 SP1 air compressors used in heavy-duty truck systems. This component is specifically designed to maintain compatibility with professional-grade pneumatic circuits found in premium heavy commercial vehicles, ensuring seamless integration with existing air brake hardware.

For workshop technicians, this unit is characterized by its through-drive design and M12x1,5 air unloader port. The installation process requires precise alignment of the water inlet (M16x1,5) and outlet (M16x1,5) ports to maintain the cooling efficiency of the water-cooled valve plate. Regular maintenance of the water cooling lines and checking for any air leakage at the M26x1,5 ports is recommended to ensure long-term system reliability.

Properly maintaining the air compressor assembly is vital for the overall stability of the vehicle's braking system. This component serves as a critical element in ensuring that pneumatic pressure remains within optimal operating parameters for heavy-duty transport applications.