3103403 Compatible N14 Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder air brake compressor serves as a critical component within the pneumatic braking system of heavy commercial vehicles. It functions by compressing intake air to provide the necessary pressure for the air processing unit and subsequent distribution to the air tanks. This specific model is engineered with high-strength components to withstand intense thermal and mechanical stress during continuous operation.

Engine compatibility and fitment

This unit is specifically compatible with Cummins N14, M11, ISM, and QSM11 engines. Its design ensures seamless integration into the engine's cooling circuit via the 3/4" - 16 UNF water inlet and outlet ports. By maintaining consistent pressure, it supports the safety-critical braking performance required for heavy-duty transport applications.

Installation and maintenance

For optimal performance, technicians should inspect the water-cooled valve plate and ensure the M27x2 air outlet port is free of debris during installation. This through-drive model features an ESS feature to enhance system efficiency and reliability under heavy loads. Regular checks of the Ø85.00 mm cylinder bore and stroke integrity are recommended to prevent pressure drops in the pneumatic circuit.

System reliability

Consult your authorized distributor.

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.