This is a perfect replacement for the OEM blower motor on a 05-09 Mustang. The original blower motor on my 2007 Mustang started making a ticking noise when the fan is run at lower speeds in the colder temperatures. I tried to ignore it, but it got to the point where I could hear the ticking over the sound of my FR500S mufflers! The replacement took about 10 minutes, it is difficult to hold the new motor up against the plenum while inserting the sheet metal screws at the same time. The OEM motor was made by Denso. The TYC replacement seems to be tighter, I can hear a whirring noise when the fan is run at setting ""1"", like the bearings are too tight or the fan is a bit noisy. Other than that, it is a direct swap without any drama.