Fitment: 2011-2014 Ford F-150 br/>2011-2016 Ford F-250 Super Duty br/>2015-2016 Ford F-350 br/>2011-2016 Ford F-350 Super Duty br/>2011-2014 Ford Lobo 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. .
