This takes a tiny bit of modification.  It is a stronger, heavy duty motor but don't expect a hurricane to come through your vents!  You must make a square hole to fit the new shaft and drill a few air holes for the motor.  Sound strange, with the new motor in your hands it will all make perfect sense! In case it doesn't, we send along a tech article showing you how. Owners from around the world have purchased this motor and so far so good!