3948846 CUMMINS Single Cylinder, Air Compressor

This high-strength single cylinder air compressor is engineered to provide reliable pneumatic pressure within the engine's air brake system. Designed for heavy-duty operation, the component features a precise Ø85.00 cylinder bore and a 56 mm stroke to maintain consistent performance under demanding conditions.

The 3948846 is the OE equivalent of the CUMMINS 3948846 air compressor used in heavy commercial vehicle systems. This unit is characterized by its water-cooling capability, utilizing a 3/4 - 16 UNF inlet and outlet port configuration to manage thermal loads effectively. The technical specifications include an M27x2 air outlet port and an M10x1 unloader port.

For workshop technicians and fleet managers, this component offers seamless integration with existing systems thanks to its specialized design, including an ESS feature and a water-cooled valve plate. Proper installation requires verifying the through-drive compatibility and ensuring the water cooling ports are correctly aligned with the engine block.

Maintaining the air supply integrity is crucial for vehicle safety. Regular inspection of the unloader port and the water cooling connections can prevent system pressure drops and ensure long-term reliability in the field.