Collin M Fairfield , MT May 16, 2022 Appliance: Maytag Dishwasher MDB4100AWW Maytag Dishwasher Mdb4100aww: I broke the impeller taking it apart. How to replace O-Ring. I ordered this part, which was the correct part. When it arrived, I installed it and now my dishwasher is back together and working again. Thanks! Do-It-Yourself Rating: Repair Time Estimate: 30-60 minutes