20569224 S3 Compatible Compressor Crankshaft Flange — Volvo

What does a crankshaft flange do?

The compressor crankshaft flange serves as the critical connecting element that links the air brake compressor's crankshaft to the engine drive. It carries the bearing and seal seat on the drive side of the crankshaft, performing essential duties such as centering, sealing, and load transfer between the housing and the crankshaft. Proper alignment is vital to prevent vibration or leakage.

Vehicle and engine compatibility

This specific component is compatible with Volvo B12 engines. It is engineered to meet the rigorous demands of heavy commercial vehicle systems, ensuring that the drive mechanism—whether via gear, belt-pulley, or coupling—reaches the crankshaft in a perfectly centered position.

Installation and maintenance

For professional installation, technicians should verify that all mounting dimensions match the existing unit. While this flange is designed for high-strength performance, ensuring the seal seat and bearing seat alignment are correct during assembly is crucial to prevent premature wear. Check the compatibility list for exact fitment guidance.

Troubleshooting and inspection

Maintaining the integrity of the crankshaft flange is key to preventing air leakage within the pneumatic system. Regular inspection of the mounting points and seal surfaces can help prevent sudden component failure in heavy commercial vehicles.

OE cross-reference

13 01 13 (Compressor Crankshaft Flange) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20569224S3.