Fan Clutch

Fan Clutch

   A thermostatically-controlled device that helps cool the engine. When the engine is cool or even at normal operating temperature, the fan clutch partially disengages the engine’s mechanically-driven radiator cooling fan, generally located at the front of the water pump and driven by a belt and pulley connected to the engine’s crankshaft. If the engine temperature rises above the clutch’s engagement temperature setting, the fan becomes fully engaged, thus drawing a higher volume of ambient air through the vehicle’s radiator which in turn serves to maintain or lower the engine coolant temperature to an acceptable level. The fan blade is included unless noted otherwise in the item description.

See Cooling Motor for electric fans.