Fit For: 2004-2009 Dodge Ram 2500 2004-2009 Dodge Ram 3500 2005-2009 Dodge Ram 4000 2008-2010 Dodge Ram 4500 2008-2010 Dodge Ram 5500 Feature: A cooling 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. .
