3948846 Cummins Compatible QSC8.3 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, providing the necessary compressed air for braking operations. Designed with high-strength components, it utilizes a piston-driven mechanism to compress intake air before it is sent to the air processing unit and storage tanks.

Compatibility and engine fitment

This specific model is designed for compatibility with Cummins engines, ensuring seamless integration into the vehicle's air system. It features a water-cooled design to manage thermal loads effectively during high-duty cycles, which is essential for maintaining consistent pressure in heavy-duty applications.

Technical specifications and cooling

Technical specifications include an Ø85.00 cylinder bore and a 56 mm stroke, resulting in a 318cm³ swept volume. The unit is equipped with an M27x2 air outlet port and M10x1 unloader port, alongside 3/4 - 16 UNF water inlet and outlet ports to facilitate efficient thermal management.

Maintenance and installation guidance

Maintenance technicians should regularly inspect the water cooling lines and port connections to prevent pressure drops. Ensuring the water-cooled valve plate remains free of debris will help maintain the longevity and performance of this compressor within the engine's 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 3948846.