Brian J Chicago , IL March 30, 2020 Appliance: KitchenAid 6 Quart Professional 600 Bowl Lift Stand Mixer KP26M1XPM5 Kitchenaid Mixer Kp26m1xpm5: A couple of the gears had become worn down. How to replace Stand Mixer Gear Kit. I ordered a part from appliance parts pros, watched the repair video and easily replaced the parts. Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes