Hello everyone. I have an amana washer that keeps growing mold under the agitator. I took off the agitator and the (steel?) at the base of the agitator area is pitted. It seems like there's supposed to be a washer / seal on top of that steel? It holds water and detergent and molds within a day. I found replacment parts for it on a website but I dont know what piece I need.

Any advice would be greatly appreciated.

When I try to attach pictures from my phone it keeps failing so I made an imgur album of a couple.

amana washer - Imgur