3948846 Cummins Compatible Single Cylinder Compressor

What does a single cylinder compressor do?

This single cylinder compressor serves as a vital component within the air brake system, providing the necessary compressed air required for pneumatic operations in heavy commercial vehicles. Engineered with high-strength components, it ensures consistent pressure delivery to the air processing unit and tanks, maintaining critical safety functions during operation.

Engine compatibility and technical specifications

The unit is specifically designed for compatibility with Cummins engines, featuring a water-cooled configuration to prevent overheating during heavy-duty service. Key technical specifications include a Ø85.00 mm cylinder bore, a 56 mm stroke, and a 318cm³ swept volume, alongside M27x2 air outlet ports and M10x1 unloader ports to ensure precise system integration.

Installation and maintenance guidance

For optimal performance, technicians should verify the integrity of the water inlet and outlet ports (3/4" - 16 UNF) and ensure the through-drive mechanism is properly aligned. Regular inspection of the water-cooled valve plate and the ESS feature components helps prevent pressure drops and maintains long-term reliability in demanding environments.

Maintenance tips for longevity

Maintaining consistent lubrication and checking the air inlet port (Ø25) for obstructions are essential steps in preventing premature wear of the internal piston assembly.

OE cross-reference

2500 030 002 (Single Cylinder Compressor) is the equivalent of the Cummins OE number. This part directly replaces Cummins OE number 3948846.