4059825 CUMMINS ISM Single Cylinder, Air Compressor

This single cylinder air compressor is engineered to provide consistent pneumatic pressure for heavy commercial vehicle systems. Designed with a robust structure, it features a cylinder bore of Ø85.00 mm and a stroke of 56 mm, delivering a swept volume of 318cm³. The unit is water-cooled to ensure thermal stability during high-demand operation, making it an essential component for maintaining efficient air brake system pressure.

4059825 is the OE-equivalent CUMMINS Single Cylinder, Air Compressor used in the CUMMINS ISM engine series. This component is specifically engineered to meet the rigorous standards required for heavy-duty commercial applications, ensuring seamless integration with existing engine architectures. It provides full compatibility with the CUMMINS 4059825 specification, making it a reliable choice for fleet maintenance.

For workshop technicians, this unit features an air inlet port of Ø25 and an air outlet port of M27x2, alongside an M10x1 air unloader port. The water inlet and outlet ports are sized at 3/4" - 16 UNF to facilitate secure installation within water-cooled engine environments. Regular inspection of the water-cooled valve plate and ensuring clean connections will help maintain optimal service intervals and prevent system pressure drops.

Proper installation requires checking the through drive and ensuring the water cooling connections are properly seated to prevent overheating. This part is designed to handle the high-pressure demands of heavy commercial vehicle air brake systems while maintaining structural integrity under extreme operating conditions.