7200 921 019 Crankshaft for Air Brake Compressors

What does a compressor crankshaft do?

The compressor crankshaft serves as the critical component that converts the rotary motion from the engine into the reciprocating motion required for the piston. By driving the compression stroke, this part directly determines the efficiency of the pneumatic braking system. Built with heavy-duty grade materials, it is designed to withstand high-pressure cycles in demanding environments.

Vehicle and engine compatibility

This crankshaft is compatible with Cummins N14 and ISM engines found in various heavy commercial vehicles, including Freightliner, International, Peterbilt, Sterling, Kenworth, and Volvo models. It is also fitted to Ford Trucks, Western Star, and various bus models such as Gillig and New Flyer.

Installation and maintenance

For professional technicians, ensuring correct axial and radial clearance during installation is vital to prevent premature wear. When replacing this component, it is recommended to inspect the connecting rod bearings and seals to maintain system integrity. Consult your authorized distributor for specific fitment details.

Troubleshooting guidance

Maintaining the integrity of the crankshaft assembly helps prevent common issues such as excessive noise or vibration within the air brake system.