20701801 S3 Crankshaft Flange for Volvo NH12 D12C Engines

What does a crankshaft flange do?

This crankshaft flange serves as a critical mounting component within the air brake compressor assembly, ensuring the stable connection between the engine crankshaft and the compressor drive. It is engineered using high-strength components to withstand the constant mechanical stresses and vibrations inherent in heavy commercial vehicle operations.

Compatible vehicles and engines

This specific part is compatible with Volvo NH12 trucks, including variants such as the NH 12/460, NH 12/340, NH 12/380, and NH 12/420, specifically when fitted with D12C engines. It serves as a reliable replacement for OE components to maintain optimal air system performance.

Installation and maintenance

For successful installation, technicians should verify the pilot diameter, bolt hole circle, and flange thickness against the existing component. Ensuring an exact match for the seal seat and bearing seat size is essential to prevent air leakage or premature vibration issues during operation.

Troubleshooting and selection

Consult your authorized distributor to confirm exact fitment for your specific compressor configuration.

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.