4991799 CUMMINS ISCE Single Cylinder, Air Compressor

This single cylinder air compressor is engineered to provide reliable pneumatic pressure within the engine system of heavy commercial vehicles. Designed with a focus on durability, the component utilizes high-strength components and a water-cooling system to maintain optimal operating temperatures during intensive cycles. The precision-engineered Ø85.00 cylinder bore and 56 mm stroke ensure consistent performance under heavy-duty service conditions.

4991799 is the OE-equivalent of the CUMMINS 4991799 single cylinder air compressor used in the CUMMINS ISCE and ISC engine series. This part is specifically designed to meet the rigorous technical requirements of high-capacity industrial engines, ensuring seamless integration with existing mechanical architectures. It serves as a critical component for maintaining efficient air supply in heavy-duty transport applications.

For workshop technicians, the installation process involves connecting the M27x2 air outlet port and the 3/4" - 16 UNF water inlet and outlet ports. The unit features a built-in ESS feature and a water-cooled valve plate to enhance thermal management. Regular inspection of the water cooling ports and air unloader port (M10x1) is recommended to ensure long-term reliability and prevent system downtime during routine maintenance cycles.