Ford F250 F350 F450 F550 Super Duty Electric Radiator Cooling Fan Clutch 622-002 (2003-2007) - Replacement for OEM 326-00749 | Heavy Duty Truck Cooling System Upgrade for Towing & Off-Road Use

Product Description

Vehicle Fitment For 2003-2007 Ford F-250 F-550 Super Duty; For 2003-2010 Ford F-350 F-450 Super Duty; For 2005-2004 Ford E-350 Club Wagon; For 2003-2005 Ford Excursion; For 2004-2007 Ford F750; What is a Fan Clutch? A fan clutch is a thermostatic engine cooling fan that can freewheel at low temperatures when cooling is not needed, allowing the engine to warm up faster, relieving unnecessary load on the engine. As temperatures increase, the clutch engages so that the fan is driven by engine power and moves air to cool the engine. Most fan clutches are viscous or "fluid" couplings, combined with a bi-metallic sensory system similar to that in a thermostat. Some clutches are electronically controlled (instead of bi-metallic strip). These provide the potential to control the level of engagement depending on any number of inputs. Common controlling factors might include engine oil temperature, transmission oil temperature, coolant temperature, AC system pressures and ambient air temperature. How to choose Fan Clutch ? Please make sure your car is on the compatibility list. Compare the appearance of your car's original Fan Clutch and Confirm whether it is the same as the picture of our product. Compare the OEM number