3097150 Crankshaft Flange for Volvo B12

What does a crankshaft flange do?

The compressor crankshaft flange serves as a vital 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 of the crankshaft, this component jointly undertakes the centering, sealing, and load transfer duties between the housing and the crankshaft. This ensures that the drive—whether via gear, belt-pulley, or coupling—reaches the crankshaft in a perfectly centered position.

Vehicle compatibility and fitment

This specific component is compatible with Volvo B12 models. It is engineered to withstand the high-pressure environments typical of heavy commercial vehicle pneumatic systems, maintaining structural integrity during continuous engine operation.

Installation and maintenance

For proper installation, technicians should verify the pilot diameter and bolt hole circle against existing components to prevent vibration or leakage. Ensuring a clean seal seat is critical for maintaining air system pressure. If misalignment occurs during installation, it may lead to premature wear of the seals or bearing seats.

Troubleshooting and selection

Consult your authorized distributor for further information on part fitment.

OE cross-reference

13 05 11 (Compressor Crankshaft Flange) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 3097150.