4933782 CUMMINS QSL9 Single Cylinder, Air Compressor

This single cylinder air compressor is a vital component for maintaining stable pneumatic pressure within heavy-duty engine systems. Designed with high-strength components, it ensures reliable operation under demanding thermal and mechanical conditions. The unit features a water-cooling system to maintain optimal operating temperatures, ensuring longevity in professional-grade applications.

4933782 is the OE equivalent of the CUMMINS 4933782 single cylinder air compressor used in the CUMMINS QSL9 and QSL series engines. This precision-engineered part is designed to meet strict technical requirements for fitment and performance. It features a Ø85.00 cylinder bore, a 56 mm stroke, and a 318cm³ swept volume to ensure consistent air delivery for the vehicle's pneumatic systems.

For workshop technicians performing engine maintenance or system overhauls, this component offers seamless integration with existing water-cooled setups. The assembly includes an M27x2 air outlet port and an M10x1 unloader port, facilitating standard installation procedures. Regular inspection of the water inlet and outlet ports (3/4" - 16 UNF) is recommended during service intervals to ensure the cooling efficiency remains at peak levels.

The unit is specifically engineered for compatibility with heavy commercial vehicle engines that require high-reliability air compression. By maintaining precise tolerances in the single-cylinder architecture, it provides the necessary air throughput required for heavy-duty braking and pneumatic subsystems.