3966520 CUMMINS ISCE Single Cylinder, Air Compressor

This single cylinder air compressor plays a vital role in the pneumatic system of heavy commercial vehicles, providing consistent air pressure required for various braking and control functions. Engineered with high-strength components, it ensures long-term reliability under demanding operating conditions. The unit is designed to maintain optimal performance through efficient thermal management.

3966520 is the OE-equivalent of the CUMMINS 3966520 single cylinder air compressor used in the CUMMINS ISCE and ISC engine series. This part provides seamless integration with original engine specifications to maintain system integrity. By adhering to strict manufacturing standards, it ensures precise fitment for specialized heavy-duty applications.

For workshop technicians, this water-cooled unit features a Ø85.00 cylinder bore and a 56 mm stroke, providing a 318cm³ swept volume. The installation requires attention to the water inlet and outlet ports (3/4" - 16 UNF) and the M27x2 air outlet port to ensure proper cooling and pressure regulation. Regular inspection of the water-cooled valve plate and seals is recommended during routine maintenance to prevent system pressure drops.

Technical specifications include an air inlet port of Ø25 and an unloader port of M10x1. The unit's design supports high-duty cycles, making it a reliable choice for fleet maintenance and heavy commercial vehicle service.