Recover 27 Horsepower and Boost Fuel Economy 6%

... by removing the stock steel clutch fan from your 2003-08 Dodge Ram Cummins Diesel. Flex-a-lite testing showed significant performance gains by reducing engine load & improving the cooling system, which resulted in better towing and mileage. Fan features variable speed control (VSC) module that monitors coolant temperature and adjusts fan speed to match cooling demand.