636-5699: Fan Drive Idler Pulley

A Fan Drive Idler Pulley is used to support the engine's cooling fan drive unit and ensure proper tension in the fan belt. The pulley's grooves match the V-shaped cross-section of the fan belt, reducing friction losses and contributing to engine efficiency. Maintaining correct belt tension and alignment helps minimize noise and vibration, leading to quieter and smoother engine performance. Attributes: • Provide accurate and consistent alignment with the ribs on the serpentine belt • Handle higher rotational speeds without compromising belt stability Applications: A Fan Drive Idler Pulley helps to redirect the fan belt's path, create tension in the belt, and reduce friction losses.