3949718 Cummins Compatible Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder air brake compressor functions as a vital component within the pneumatic system of heavy commercial vehicles. By utilizing a piston-type mechanism, it compresses intake air to provide the necessary pressure for the air processing unit and storage tanks. This specific model features a water-cooled design to manage thermal loads effectively during sustained operation.

Compatibility and engine fitment

The unit is designed to work seamlessly within systems requiring consistent air output. It is compatible with Cummins engines and provides high-strength performance for heavy-duty applications. Its compact, single-cylinder architecture ensures an economical cost of ownership while maintaining the high pressure required for braking reliability.

Installation and maintenance guidance

Maintenance of this compressor involves monitoring the water inlet and outlet ports (3/4" - 16 UNF) and ensuring the air unloader port (M10x1) remains clear. Technicians should regularly inspect the water-cooled valve plate and the through drive mechanism to prevent system pressure drops or overheating during long-haul operation.

System reliability

Proper installation ensures that the Ø25 air inlet and M27x2 outlet ports are correctly aligned to prevent leaks in the pneumatic circuit.

OE cross-reference

2500 030 002 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3949718.