20701801 S3 Volvo VNL D12 Compressor Crankshaft Flange

What does a compressor crankshaft flange do?

The crankshaft flange serves as a critical mounting and drive component within the air brake compressor assembly. It facilitates the necessary connection between the engine crankshaft and the compressor internals, ensuring consistent pressure delivery for braking systems. This component is manufactured using high-strength components to withstand the intense mechanical stresses found in heavy commercial vehicle applications.

Vehicle and engine compatibility

This specific flange is designed for use in Volvo VNL trucks equipped with D12 engines. It provides a reliable interface for the compressor assembly, maintaining structural integrity during high-pressure cycles. This part is also fitted to other heavy commercial vehicle engines within the same specification class.

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. Proper installation is essential to prevent premature leakage or excessive vibration. Ensure all mounting surfaces are clean and free of debris before securing the flange to the crankshaft.

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.