20547525 S3 Volvo FL12 Compatible Compressor Crankshaft Flange

What does a compressor crankshaft flange do?

This compressor crankshaft flange serves as a critical component within the air brake compressor assembly, ensuring stable rotation and secure connection of internal parts. Manufactured from high-strength components, it is designed to withstand the high-pressure environments typical of heavy commercial vehicle air systems.

Vehicle compatibility and engine fitment

This part is compatible with Volvo FL12 trucks, specifically supporting variants such as the FL 12H/420, FL 12/340, and FL 12/420. It is engineered to maintain structural integrity during continuous operation in demanding service conditions.

Installation and maintenance guidance

When replacing this component, technicians should verify the pilot diameter, bolt hole circle, and seal seat size to ensure perfect alignment. Proper installation prevents premature leakage or excessive vibration within the compressor housing. Always consult your authorized distributor to confirm exact fitment for your specific compressor type.

Troubleshooting and selection

Maintaining the crankshaft flange as part of regular compressor servicing helps prevent system failures. A worn flange can lead to air pressure fluctuations or mechanical instability in the braking system.

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.