4053825 N14 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. It functions by converting mechanical energy from the engine into compressed air, which is then distributed to the air processing unit and storage tanks to ensure reliable braking performance. This specific model is designed with high-strength components to withstand demanding operational cycles.

Engine compatibility and fitment

The unit is specifically compatible with Cummins N14, M11, ISM, and QSM11 engines. This water-cooled design integrates into the engine cooling circuit to prevent overheating during sustained heavy-duty operation, making it suitable for long-haul transport and heavy-load applications.

Technical specifications and installation

Technical specifications include an Ø85.00 mm cylinder bore and a 56 mm stroke, providing a swept volume of 318cm³. The assembly features an M27x2 air outlet port, an M10x1 unloader port, and a through-drive configuration. Proper installation requires ensuring the 3/4" - 16 UNF water inlet and outlet ports are correctly secured to maintain efficient thermal management.

Maintenance and troubleshooting

Regular inspection of the water-cooled valve plate and air ports is recommended to prevent pressure drops in the brake system. Consult your authorized distributor to ensure correct fitment for your specific engine configuration.

OE cross-reference

2500 030 003 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 4053825.