20382347 S3 Crankshaft Flange for Volvo FL12

What does a compressor crankshaft flange do?

This crankshaft flange serves as a critical component within the air brake compressor assembly, facilitating the transmission of mechanical energy to the compression elements. Manufactured with high-strength components, it is designed to maintain structural integrity under the continuous thermal and mechanical stress typical of heavy commercial vehicle air systems.

Compatible vehicle applications

This specific part is engineered for Volvo FL12 models, including variants such as the FL 12H/420, FL 12/340, and FL 12/420. It serves as a reliable replacement to maintain the performance of the compressor system in these heavy-duty applications.

Installation and maintenance guidance

When performing maintenance or repairs, technicians should verify the pilot diameter, bolt hole circle, and seal seat size against the existing unit to prevent leaks or excessive vibration. Ensuring a precise match with the compressor type is essential for proper installation and long-term reliability.

Troubleshooting and inspection

If you notice unusual vibrations or air pressure drops in the braking system, inspecting the crankshaft flange is a recommended step during a compressor overhaul.

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.