3558163 Compatible QSM11 Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder air brake compressor is a piston-type component that provides the necessary compressed air for the pneumatic brake system in heavy commercial vehicles. It functions as the primary source of pressure, compressing intake air and directing it toward the air processing unit to ensure consistent brake performance. Built with high-strength components, this unit is engineered to withstand demanding operational cycles.

Engine compatibility and technical specs

This specific model is designed for compatibility with Cummins engines, including the M11, N14, ISM, and QSM11 series. It features a water-cooled design to prevent overheating during continuous operation, utilizing a 3/4" - 16 UNF water inlet and outlet port configuration. The unit includes an ESS feature and a water-cooled valve plate to maintain efficiency under high thermal stress.

Installation and maintenance guidance

For proper installation and maintenance, technicians should verify the water cooling lines and ensure the M27x2 air outlet port is securely seated. Given its Ø85.00 bore and 318cm³ swept volume, regular inspection of the piston and ring assemblies is recommended to preserve compression efficiency. Check the compatibility list to ensure exact fitment for your engine model.

Troubleshooting and system performance

Maintaining consistent air pressure is vital for the safety of heavy commercial vehicle braking systems. If a drop in air pressure is detected or if the compressor fails to reach target pressure within standard intervals, inspecting the water cooling flow and valve plate integrity is advised.

OE cross-reference

2500 030 003 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3558163.