Direct-Fit Dual 15" Electric Fans 2003-2007 Ford Powerstroke 6.0L Diesel Manufacturer: Flex-a-lite Part # 274 NOTE: Fans ARE NOT designed for heavy towing With Variable Speed Controller Quicker Engine Warm Up Up To 6,800 CFM Of Airflow Direct-Fit Bolt-On Design This Flex-A-Lite direct-fit dual electric-fan system is specifically for 2003-2007 Ford Super Duty trucks with the 6.0L diesel engine. Recover horsepower and boost your fuel economy by replacing your stock clutch fan assembly with this dual electric fan system. It features two 15-inch S-Blade electric fans. Comes with the Flex-A-Lite Variable Speed Controller that varies the fan speed from 60-100 percent, depending on radiator temperature. These powerful fans can move up to 6,800 cfm of airflow! Made in the USA!