20547525 S3 Crankshaft Flange for Volvo FH16 D16C

What does a crankshaft flange do?

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

Vehicle compatibility and engine fitment

This specific flange is designed for use in Volvo FH16 trucks equipped with D16C engines. It is engineered to withstand the rigorous operating conditions typical of heavy commercial vehicle applications, ensuring a reliable connection between the compressor and the engine drive mechanism.

Installation and maintenance guidance

When performing maintenance or replacement, technicians should verify that all dimensions such as pilot diameter and bolt hole patterns match the existing part exactly. Even slight mismatches can lead to premature seal failure or excessive vibration. Always consult your authorized distributor to ensure correct fitment.

Troubleshooting and inspection

Regular inspection of the flange and its seating surfaces can help prevent air leaks and maintain optimal compressor performance throughout the service interval.

OE cross-reference

13 01 13 (Compressor Crankshaft Flange) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20547525S3.