Interchange Part Number 3202 Fan Clutch. For 2011-2014 Chevrolet Silverado 3500. For 2011-2014 Chevrolet Silverado 2500. For 2011-2014 Gmc Sierra 3500. For 2011-2014 Gmc Sierra 2500. Precise Cooling: Automatically regulates fan speed to prevent engine overheating.