3966520 Single Cylinder Compressor for Cummins Engines

What does a single cylinder compressor do?

This single cylinder air brake compressor serves as a critical component in the pneumatic braking system of heavy commercial vehicles. It functions by compressing intake air and delivering it to the air processing unit, ensuring consistent pressure for the entire braking circuit. This specific model is engineered with a water-cooled design to manage operating temperatures effectively during high-demand service cycles.

Engine compatibility and technical specifications

Designed to work with Cummins engines, this unit features a 318cm³ swept volume and a through-drive configuration. The technical architecture includes an Ø85.00 mm cylinder bore and a 56 mm stroke, providing efficient air production. The unit is equipped with an ESS feature and a water-cooled valve plate to maintain optimal performance under heavy-duty conditions.

Installation and maintenance guidance

For proper installation, technicians should verify the water inlet and outlet connections, which utilize 3/4" - 16 UNF threads. The air outlet port is M27x2, and the air unloader port is M10x1. Regular inspection of the cooling lines and the water pump interface is recommended to prevent overheating and ensure long-term reliability in the field.

Performance and durability

Consult your authorized distributor for compatibility details.

OE cross-reference

2500 030 002 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3966520.