A Fan Drive Pulley Adapter is used to connect a fan drive pulley to the crankshaft of an engine. It is used to provide a secure and reliable connection between the fan drive and the engine crankshaft, ensuring that the fan drive operates smoothly and efficiently.Attributes:• Provides smooth and consistent rotation of the fan, reducing vibrations and noise• Provided with six mounting holes of size 13.8mm diameter to align with 1/2" fasteners to maintain precise and accurate position Applications:A Fan Drive Pulley Adapter functions as an intermediary component that couples the fan drive pulley to the engine crankshaft, providing a secure, reliable method for transferring rotational motion and torque.