The Fan Drive Pulley Adapter precisely fits onto the existing pulley shaft and provides a new mounting surface for the desired fan pulley. The adapter may have different patterns or configurations on its outer surface to accommodate different fan pulley designs. The adapter is securely fastened to the pulley shaft using bolts or other suitable fasteners. Attributes:• Adapt the pulley configuration of a fan drive unit• Manufactured to precise specifications and are built for durability and reliability• Provide mounting holes of different diameters 10.5mm and 11mm respectively Applications:The Fan Drive Pulley Adapter is used to fit onto the existing pulley shaft provide a new mounting surface for the desired fan pulley and match the fan drive system's pulley requirements to the engine's power output, and cooling requirements.