2500 040 003 Compatible Single Cylinder Air Compressor

What does a single cylinder compressor do?

This single cylinder air compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles. It functions by compressing intake air and delivering it to the air processing unit, which subsequently distributes it to the air tanks to ensure reliable braking performance. This unit is engineered with high-strength components to withstand the high-pressure demands of heavy-duty cycles.

Vehicle and system compatibility

This specific model is compatible with Cummins and WABCO systems. It is designed to provide efficient air delivery through a single-piston architecture, making it suitable for various heavy commercial vehicle configurations where consistent air pressure is required for safe operation.

Technical specifications and installation

Technicians should note that this unit is a water-cooled model, featuring 1/2”-14 NPT water inlet and outlet ports to manage operating temperatures effectively. The compressor utilizes a 3/4”-14 NPT configuration for both air inlet and outlet ports, and it includes an M10x1 unloader port to facilitate proper system regulation during maintenance or operation.

Maintenance and troubleshooting

Regular inspection of the through drive mechanism and cooling lines is recommended to prevent pressure drops in the pneumatic circuit. Ensuring the water cooling flow remains unobstructed is vital for maintaining the longevity of the internal piston assemblies.

OE cross-reference

2500 040 003 (Single Cylinder Compressor) is the equivalent of the Cummins and WABCO OE numbers. This part directly replaces Cummins OE number 4934957. It also replaces WABCO OE number 9111535520.