3103403 Single Cylinder Compressor for ISM Engines

What does a single cylinder compressor do?

This water-cooled single cylinder compressor serves as a vital component in the air brake system of heavy commercial vehicles. By utilizing an engine-driven mechanism, it compresses intake air to supply the pneumatic requirements of the braking system and air processing units. This specific model is engineered with high-strength components to withstand high-pressure environments and ensure consistent performance during heavy-duty operation.

Engine compatibility and fitment

This compressor is specifically compatible with Cummins engines, including the M11, N14, ISM, and QSM11 series. It is designed to integrate seamlessly with these engine configurations to provide reliable compressed air for the vehicle's pneumatic systems.

Technical specifications and installation

Technicians should note that this unit features a water-cooled design with a water inlet and outlet port size of 3/4" - 16 UNF. The assembly includes a water-cooled valve plate and an ESS feature for enhanced operational stability. When performing maintenance, ensure that the M27x2 outlet port and M10x1 unloader port are checked for proper sealing to maintain system pressure.

Maintenance and troubleshooting

Regular inspection of the through-drive mechanism and cooling lines is recommended to prevent overheating or pressure drops in the braking circuit.

OE cross-reference

2500 030 003 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3103403.