1916521 CATERPILLAR Single Cylinder, Air Compressor

This single cylinder air compressor is engineered to provide consistent air pressure within the pneumatic system of heavy commercial vehicles. Designed with a robust structure, it ensures reliable performance in demanding environments where high-strength components are required to maintain system integrity. The unit features a water-cooled design to manage thermal loads efficiently during operation.

1916521 is the OE-equivalent of the CATERPILLAR 191-6521 single cylinder air compressor used in CATERPILLAR heavy machinery and commercial vehicle systems. This component is precision-engineered to meet the rigorous specifications of the original equipment, ensuring seamless integration and optimal air supply for the vehicle's pneumatic brake and control systems.

The installation process requires attention to the water inlet and outlet ports to ensure proper cooling functionality. The technical specifications include a 92.00 mm cylinder bore and a 360cm³ swept volume, making it a vital component for maintaining air pressure stability. Workshop technicians should verify the compatibility of the 7/8’’-14 UNF air inlet port and the 3/4’’-16 UNF water ports during assembly to ensure a leak-free installation and long-term durability.