A very low time Prestolite ALY 6420  12 volt 60 amp alternator. The bearings feel perfect and brushes look like new. This was a rebuilt from Aero Electric 10 or 15 years ago and was installed on a Long eze aircraft. It was working fine but removed for an very small vac pad run alternator to make cowl smaller. I think it has around 150 hours since new. I will stand behind as I know it worked fine and would return your money if you did not feel was not as  represented.