4934957 CUMMINS Single Cylinder, Air Compressor

The 2500 040 003 Single Cylinder, Air Compressor is an essential component designed to provide reliable pneumatic pressure within the heavy commercial vehicle braking system. Engineered with high-strength components, this unit features a single cylinder architecture with a precise Ø85.00 mm bore and a 56 mm stroke. Its robust construction ensures stable operation even under demanding thermal conditions, making it a dependable choice for maintaining optimal air pressure in professional vehicle fleets.

This air compressor is the OE-equivalent of the CUMMINS 4934957 Single Cylinder, Air Compressor used in CUMMINS heavy-duty engines. It features a swept volume of 318cm³ and is equipped with both 3/4”-14 NPT air inlet and outlet ports to ensure efficient airflow. The integration of water-cooling capabilities through 1/2”-14 NPT ports allows the unit to manage heat effectively during intensive duty cycles.

For workshop technicians, the installation process is streamlined by its standardized dimensions and integrated through-drive system. The unit includes an M10x1 air unloader port and is designed for seamless integration into existing engine architectures. Regular maintenance of the cooling lines and monitoring of the air delivery pressure are recommended to ensure the longevity of the compressor and the overall safety of the vehicle's pneumatic braking system.