20547525 S3 Crankshaft Flange for Volvo FH12 D12C

What does a compressor crankshaft flange do?

This compressor crankshaft flange plays a critical role in the air brake compressor assembly by connecting the crankshaft to the drive mechanism. It is engineered to handle high-stress rotation within the compressor housing, ensuring stable operation and preventing leakage or excessive vibration under heavy-duty conditions.

Vehicle and engine compatibility

This component is compatible with Volvo FH12 trucks, including various power outputs such as the FH 12/340, FH 12/460, FH 12/380, FH 12/420, and FH 12/500 models utilizing D12C engines. It serves as a direct replacement for OE Volvo parts to maintain original system integrity.

Installation and maintenance guidance

For professional installation, technicians should verify that the pilot diameter and bolt hole circle match the existing assembly to prevent premature wear. Proper seating of the flange is essential to avoid air leaks or mechanical vibration during high-pressure cycles. Consult your authorized distributor for fitment verification.

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.