911 155 521 0 WABCO Single Cylinder, Air Compressor

This single cylinder air compressor serves as a critical component in the pneumatic braking system, providing consistent air pressure required for heavy-duty vehicle operations. Engineered with high-strength components, the unit features a robust Ø85.00 mm cylinder bore and a 56 mm stroke to ensure reliable air delivery. Its water-cooled design helps maintain optimal operating temperatures during prolonged service intervals.

911 155 521 0 is the OE-equivalent of the WABCO 911 155 521 0 Single Cylinder, Air Compressor used in WABCO systems. This part is engineered to meet strict technical specifications, featuring a swept volume of 318cm³ and specialized ports including an M30x1,5 air inlet and an M26x1,5 air outlet to ensure seamless integration into existing pneumatic circuits.

For workshop technicians, this unit offers ease of assembly with its through-drive design and standardized port sizes. The inclusion of an M12x1,5 air unloader port and M16x1,5 water ports allows for precise installation and maintenance. Regular checks of the water cooling connections and the ESS feature functionality are recommended to maintain peak system performance and prevent downtime in heavy commercial vehicle fleets.

Maintaining the integrity of the air supply is vital for vehicle safety. This compressor is designed to withstand demanding industrial environments, ensuring that the pneumatic system remains pressurized and responsive. Proper mounting and connection to the water cooling circuit are essential for long-term reliability.