3969110 Cummins Compatible QSC8.3 Compressor

What does an air compressor do?

This single cylinder air brake compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles. By utilizing a high-strength piston mechanism, it compresses intake air to provide the necessary pressure for the air processing unit and storage tanks. Its robust construction ensures stable performance under demanding operating conditions in heavy-duty environments.

Compatibility and engine fitment

This specific model is designed to be compatible with Cummins engines and systems. It features a water-cooled valve plate and integrated ESS functionality to maintain optimal thermal management during continuous operation, ensuring long-term reliability in heavy commercial vehicle applications.

Installation and maintenance

Technicians should note the technical specifications including the Ø25 air inlet port and M27x2 outlet port for correct installation. Given the water-cooled design, ensuring clean coolant flow through the 3/4" - 16 UNF ports is essential for preventing overheating and maintaining consistent swept volume of 318cm³.

System performance guidance

Regular inspection of the unloader port and drive connections is recommended to prevent system pressure fluctuations. Consult your authorized distributor to verify exact fitment for your specific engine configuration.

OE cross-reference

2500 030 002 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3969110.