Originally Posted by mzskunk

I was able to remove my broken zigzag gear and replace it using this gear from eBay. It is a Kenmore part. Its shaft is a little bit shorter than Dressmaker but that's just a part of the gear that extends under the mounting hole and doesn't affect its performance. The lobe is the same, as well as the thickness of the shaft and the distance between the lobe and the collar. The set screw still reaches the shaft and it works perfectly.

http://www.ebay.com/itm/321483108400?_trksid=p2057872.m2749.l2649&ssPageNa me=STRK%3AMEBIDX%3AIT