3097150 Volvo F12 TD122 Crankshaft Flange

What does a crankshaft flange do?

The compressor crankshaft flange acts 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, it performs the essential duties of centering, sealing, and load transfer between the compressor housing and the crankshaft. This component ensures that the drive force from the engine is transmitted accurately to the compressor assembly.

Compatibility with Volvo F12 engines

This specific part is designed for Volvo F12 vehicles utilizing TD122 engines. It is an essential component for maintaining the integrity of the air brake system in heavy commercial vehicle applications. The flange ensures that the drive mechanism—whether gear or coupling-driven—remains perfectly centered to prevent premature wear.

Installation and maintenance guidance

For successful installation, technicians should verify the pilot diameter and bolt hole circle against existing components. Proper alignment is critical; even minor mismatches in flange thickness or seal seat size can lead to rapid air leakage or excessive vibration. Maintaining correct torque during mounting helps preserve the integrity of the crankshaft connection.

Troubleshooting and inspection

Regular inspection of the flange seat and bearing area can help prevent sudden pneumatic system failures. If vibration or air leaks are detected near the compressor drive side, checking this component is a recommended troubleshooting step.

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.