Fitment: 1995-1997 Ford E-350 Econoline 1995-1997 Ford E-350 Econoline Club Wagon 1996-1997 Ford Econoline Super Duty 1993 1995-1997 Ford F Super Duty 1994-1996 Ford F-250 1997 Ford F-250 HD 1994-1997 Ford F-350 1994-1997 Ford F59 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. .
