3944525 CUMMINS ISLE Single Cylinder, Air Compressor

This single cylinder air compressor is a critical component within the pneumatic system of heavy commercial vehicles, ensuring stable air pressure delivery through high-strength components. Designed for durability, the unit utilizes a water-cooling mechanism to maintain optimal operating temperatures during intense cycles. The precision-engineered design focuses on maintaining consistent airflow and pressure stability under heavy-duty operational conditions.

3944525 is the OE-equivalent of the CUMMINS 3944525 single cylinder air compressor used in CUMMINS ISL and ISLE engines. This component is engineered to meet strict technical specifications, featuring a Ø85.00 cylinder bore and a 318cm³ swept volume. Its compatibility ensures seamless integration with existing engine architectures to prevent system downtime in heavy commercial vehicle fleets.

For workshop technicians, this unit features an M27x2 air outlet port and an M10x1 air unloader port. The water-cooling system utilizes 3/4" - 16 UNF inlet and outlet ports to ensure efficient thermal management. Regular inspection of the water inlet/outlet connections and the M27x2 discharge port is recommended during routine service intervals to ensure optimal pneumatic system performance.

Installation should be performed by qualified technicians to ensure the through-drive and ESS features function according to manufacturer standards. Proper maintenance of the cooling circuit is essential for the longevity of the compressor and the overall reliability of the vehicle's braking system.