Radiator fans are used to draw the air towards the radiator and help in the cooling process.High performance radiator fan may be used to replace your OE product for more efficient cooling. They allow more air to circulate around the radiator and they need less horsepower to operate too, making them ideal for your radiator fan replacement. Also, These Slim Fans have an ultra slim design so the fan can be installed easily against your radiator, in the most convenient position to allow for more leniencies for other aftermarket parts.