10" Slim Fan 6.7 amps 12v @ 80watts 2.25" thick! Includes Mounting Hardware Description These universal slim fans can fit and work in a variety of applications. If you are doing a K-Series engine swap you will need to change the fan since the OE units are too thick. This fan works also works great with our full-size radiators. We recommend using a 12" slim fan on half-size radiators and (2) 10" fans on the full-size radiators.