3090385 Flange for Volvo F12 Air Brake Compressor

What does a crankshaft flange do?

The compressor crankshaft flange serves as a critical connecting element that links the air brake compressor's crankshaft to the engine drive. By carrying the bearing and seal seat on the drive side, this component ensures that the drive force is transferred accurately while maintaining proper centering between the compressor housing and the crankshaft.

Vehicle compatibility and engine fitment

This specific flange is engineered for Volvo F12 trucks, including variants such as the F 12/370, F 12/360, F 12/400, F 12/410, F 12/320, and F 12/330. It is designed to handle the rigorous mechanical stresses encountered in heavy commercial vehicle air systems.

Installation and maintenance guidance

When performing maintenance or repairs, technicians should verify that the pilot diameter, bolt hole circle, and seal seat dimensions match the existing component. Using a mismatched flange can lead to rapid leakage or excessive vibration within the compressor assembly. Always ensure all mounting surfaces are clean before installation.

Troubleshooting and inspection

For optimal performance, inspect the flange for signs of wear on the bearing seat or deformation of the sealing area during every compressor service interval.

OE cross-reference

13 06 12 (Compressor Crankshaft Flange) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 3090385.