I had a Citation that needed cleaning so I did a side by side. I found that most parts are interchangeable. These two aren't exactly alike, but the Citations have all sorts of small variations. I didn't find any parts on the Mustang that I haven't seen on one Citation or another. Obviously the color and name are different, but the one major difference is the tooth count on the gears. The Mustang crank gear has 45 teeth and the pinion gear has 16 teeth. The Citation crank gear has 35 teeth and the pinion gear has 12 teeth. Other than the teeth count the gears are the same, so you could replace the Mustang gears with Citation gears as a set.