Audrey P Holly Springs , NC July 11, 2015 Blender drive coupler was missing 2 teeth This was so simple, we love our Kitchen Aid blender so I looked on line and found Appliance Parts pros. I found the part and a video on how to fix it. The part was at my door in 3 days and it took me 5 minutes to fix. Do-It-Yourself Rating: Repair Time Estimate: Less than 15 minutes