911 504 503 0 WABCO Twin Cylinder, Air Compressor

The heavy-duty Twin Cylinder, Air Compressor is a critical component designed to ensure stable air pressure within the pneumatic braking system. Engineered with high-strength components, this unit features a dual-cylinder configuration and a water-cooling system to maintain optimal thermal stability during intense operation. Its robust construction ensures reliable performance in the most demanding heavy commercial vehicle environments.

911 504 503 0 is the OE-equivalent Twin Cylinder, Air Compressor used in WABCO systems. This specific part is engineered to meet strict technical requirements for compatibility and precision. It features a Ø75.00 mm cylinder bore and a 442cm³ swept volume, ensuring consistent air delivery for the vehicle's pneumatic infrastructure.

Workshop technicians should note the specific port configurations during installation. The unit utilizes an M26x1,5 air inlet and outlet port, alongside an M12x1,5 air unloader port. For water-cooled systems, the inlet and outlet ports are sized at M14x1,5. Regular maintenance of the cooling paths and checking for any leaks in the high-strength connections is recommended to ensure long-term system integrity.

This component is optimized for professional service environments where precision and durability are paramount. By maintaining exact specifications for the through-drive and ESS feature compatibility, it provides a seamless integration into existing heavy-duty air brake assemblies.