Fitment: 2006-2008 Jeep Commander 2005-2009 Jeep Grand Cherokee 2005-2006 Jeep Liberty 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. .
