20701801 S3 Crankshaft Flange Compatible with 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 ensures that the drive force is transferred accurately while maintaining proper centering between the housing and the crankshaft.

Compatible vehicles and engines

This specific component is designed for use in Volvo B12 vehicles. It is compatible with the air brake systems of these heavy commercial vehicles, ensuring reliable performance under demanding service conditions. Check the compatibility list.

Installation and maintenance

When inspecting or replacing this part, technicians should verify the pilot diameter, bolt hole circle, and seal seat size to ensure a perfect match. Precise installation is necessary to prevent premature leakage or excessive vibration within the compressor assembly.

Troubleshooting and selection

Proper maintenance of the compressor drive system prevents secondary damage to the crankshaft. Always confirm that the flange matches the specific compressor type used in the vehicle to ensure optimal sealing and load distribution.

OE cross-reference

13 01 13 (Compressor Crankshaft Flange) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20701801S3.