Product review (3 stars): I used a fine half moon file and filed the rounded and flat ...
This part gets the job done for a fraction of the cost of an OEM part but it is not a genuine Whirlpool part as listed. As other reviews stated, this is a tight fit and will require a little filing to get it to fit on the shaft. I used a fine half moon file and filed the rounded and flat portions down a hair. Even then it was still a tight fit but with a rubber mallet and many careful light taps, I was finally able to get it to fit on the shaft. I hope that this one never breaks because it isn't going to be as easy to remove as the OEM one was.