4991799 CUMMINS ISL Single Cylinder, Air Compressor

This single-cylinder air compressor is engineered to provide reliable pneumatic pressure for heavy commercial vehicle engine systems. Designed with a robust structure, it features a Ø85.00 cylinder bore and a 56 mm stroke to ensure consistent performance under high-load conditions. The unit is water-cooled to maintain optimal operating temperatures, making it ideal for long-haul transport applications.

4991799 is the OE-equivalent CUMMINS air compressor used in the CUMMINS ISL engine series. This component ensures seamless integration with existing engine architectures, maintaining high-strength performance standards. By utilizing premium grade materials, this part meets the rigorous demands of professional workshop technicians and fleet managers who require precision-engineered spare parts.

The installation of this compressor requires attention to the water inlet and outlet ports (3/4" - 16 UNF) and the air unloader port (M10x1). It is highly recommended that workshop technicians verify all port clearances and connection types before assembly to ensure optimal system pressure. Regular maintenance of the cooling lines and checking the through-drive alignment will help extend the service life of the component within the engine's pneumatic circuit.