4952756 Compatible QSM11 Air Compressor

What does a single cylinder compressor do?

This single cylinder air brake compressor serves as a vital component within the pneumatic system of heavy commercial vehicles. It functions by compressing intake air and directing it toward the air processing unit and tanks, ensuring consistent pressure for braking performance. This specific model is designed with high-strength components to withstand rigorous operating conditions.

Engine compatibility and fitment

This compressor is engineered for compatibility with Cummins engines, specifically the M11, N14, ISM, and QSM11 series. It features a water-cooled design to prevent overheating during continuous operation and includes an integrated ESS feature for enhanced system reliability.

Installation and maintenance guidance

Installation and maintenance should focus on the water inlet and outlet ports, which utilize 3/4" - 16 UNF connections. Technicians should regularly inspect the Ø25 air inlet port and M27x2 outlet port to prevent leaks. Maintaining proper coolant flow is essential for the longevity of the water-cooled valve plate.

System reliability and selection

Ensuring the correct fitment for your engine series is critical for maintaining brake system integrity. Consult your authorized distributor to confirm exact specifications for your vehicle's pneumatic requirements.

OE cross-reference

2500 030 003 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 4952756.