Product review (2 stars): This piece is NOT required to do the door switch - it's only a cosmetic part for inside the door.
I have a MED6000XW dryer, and the manual explains how to swap the door around. About half way through the swap I realized the parts weren't going back together the 'other' way. The manual is wrong, so I called Maytag and they suggested this part is required. (Two stars because the manual is wrong)

Well it turns out it's not required. It's just a cover for the hinge screws - it sits inside the door, between the inner and the outer glass. It's purely cosmetic. I ran it by the boss and she thankfully didn't care what it looks like - so I did NOT order this and put it all back together without this piece. If you study the door you can see where this piece would have gone, but ... really you can barely notice it's not there.