20382347 S3 Crankshaft Flange for Volvo B12

What does a crankshaft flange do?

The compressor crankshaft flange acts as the essential connecting component 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, it performs the vital task of centering, sealing, and transferring loads between the compressor housing and the crankshaft. This part is crucial for maintaining stable pressure within the pneumatic braking system.

Compatible vehicles and engines

This specific component is compatible with Volvo B12 trucks. It is engineered to withstand high-pressure environments and mechanical stress typical of heavy commercial vehicle operation. Ensuring a precise fitment is essential to prevent vibrations or air leakage during high-load cycles.

Installation and maintenance

When replacing this component, technicians should verify the pilot diameter, bolt hole circle, and seal seat size against existing specifications. Proper installation prevents premature wear of the crankshaft and seals. Always ensure that all mounting surfaces are clean to maintain a perfect seal during operation.

Selection guidance

Check the compatibility list.

OE cross-reference

13 01 13 (Compressor Crankshaft Flange) is the equivalent of the Volvo OE number. This part directly replaces Volvo OE number 20382347S3.