3949098 Cummins Compatible Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder air brake compressor serves as a critical component within the pneumatic system of heavy commercial vehicles. It functions by converting mechanical energy into compressed air, which is then directed to the air processing unit and storage tanks to ensure reliable braking performance. This water-cooled unit is engineered using high-strength components to maintain stability under high-pressure operating conditions.

Compatibility with Cummins engines

Designed specifically for compatibility with Cummins engines, this component ensures efficient air delivery for the braking system. The unit features a water-cooled valve plate and is compatible with Cummins engine architectures, providing a reliable solution for heavy commercial vehicle maintenance and repair.

Installation and technical specifications

Technicians should note the specific port configurations during installation: the air outlet port is M27x2, the unloader port is M10x1, and the water inlet/outlet ports are 3/4" - 16 UNF. Given the water-cooled nature of this compressor, ensuring proper coolant flow through the ports is essential to prevent overheating and maintain optimal cylinder pressure.

Maintenance and troubleshooting

Regular inspection of the through-drive mechanism and air inlet ports is recommended to prevent leaks or pressure drops in the brake line. Maintaining correct clearance in the piston assembly helps preserve the efficiency of the 318cm³ swept volume over extended service intervals.

OE cross-reference

2500 030 002 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3949098.