Product review (5 stars): Fit my Kitchenaid dishwasher
I was having to pull my dishwasher apart every couple months to clean this part and put it all back together.  My upper dishes were not getting clean.  After 4 attempts at cleaning the original part I finally replaced this chopper blade and it fixed the problem permanently.  I believe the first one was defective. It was not easy getting to the blade.  I had to look at the manual online to figure out how to pull everything apart. Took about an hour.