3944525 Cummins Compatible Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder air brake compressor serves as a critical component in the pneumatic system of heavy commercial vehicles, converting mechanical energy into compressed air. By utilizing a high-strength single-piston design, it provides the consistent air pressure required for braking systems and auxiliary pneumatic functions. The water-cooled architecture ensures optimal thermal management during continuous operation, preventing overheating in demanding environments.

Vehicle and engine compatibility

This specific unit is designed for compatibility with Cummins engines. It features a 318cm³ swept volume and is engineered to meet the rigorous demands of heavy-duty service. The component is optimized for efficient air delivery to the processing units within the vehicle's pneumatic circuit.

Installation and maintenance guidance

For professional installation, technicians should verify the water inlet and outlet connections, which utilize 3/4" - 16 UNF ports. Ensure that the M27x2 air outlet port is securely seated to prevent pressure drops. Regular inspection of the through drive mechanism and the water-cooled valve plate is recommended to maintain peak system efficiency.

Troubleshooting and maintenance

Maintaining proper lubrication and cooling flow is essential for extending the service life of the internal piston and ring assemblies. If air pressure build-up slows or system leaks are detected near the unloader port, a thorough inspection of the entire pneumatic circuit is advised.

OE cross-reference

2500 030 002 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3944525.