Fits: 2011-2014 Chevrolet Silverado 2500 2011-2014 Chevrolet Silverado 3500 2011-2014 Gmc Sierra 2500 2011-2014 Gmc Sierra 3500 Features: Easy Installation High flow design provides long lasting, efficient cooling Factory lubricated for long life Precision ground shaft and hub accept fan clutches perfectly Quality forged housing is specially formed to ensure maximum coolant flow Precision built and balanced - Pressed on impeller increases water flow Unitized seal protects bearings - Provides long life and leak free performance Note: .