I ordered this replacement for a broken operator, hoping that a newly made one would be at least as good, if not better quality. While it does fit the original mounting holes that's were the similarities end. The operation is very jerky as it seems to have a problem supporting the window weights. The gear looks undersized, which may account for the jerky operation. The handle is too short which also makes operation hard. If you must have a replacement, this may be your only choice. I intend to look around for something of better quality.