3948846 CUMMINS ISLE Single Cylinder, Air Compressor

The single cylinder air compressor is a critical component for maintaining the pneumatic integrity of heavy commercial vehicle engine systems. This unit provides consistent air compression through a high-strength design, featuring a swept volume of 318cm³ and a robust water-cooling system. By utilizing heavy-duty grade materials, it ensures reliable performance under demanding thermal conditions typical in heavy-duty transport applications.

3948846 is the OE-equivalent of the CUMMINS 3948846 single cylinder air compressor used in the CUMMINS ISL and ISLE engine series. This component is engineered to meet strict technical standards for seamless integration within the engine's peripheral systems. Its precise dimensions, including a Ø85.00 cylinder bore and 56 mm stroke, ensure optimal volumetric efficiency and long-term operational stability.

For workshop technicians, the installation process requires careful attention to the water cooling ports (3/4" - 16 UNF) and the air outlet specifications (M27x2). This unit is specifically designed to be compatible with CUMMINS ISL and ISLE engine configurations, ensuring that the pneumatic pressure delivery remains constant. Regular maintenance of the water inlet and outlet connections is recommended to prevent overheating during intensive cycles.

Maintaining the correct air pressure through this single cylinder compressor is vital for the overall functionality of the vehicle's pneumatic systems. The inclusion of an ESS feature and a dedicated unloader port (M10x1) allows for advanced control over pressure regulation, making it a reliable choice for professional fleet maintenance and heavy-duty service requirements.