Black Rubber ring around pump in tub floor deteoriating

Just noticed that the black rubber ring around the sump pump(?)in the tub floor is virtually gone and what is left is all very spongy and deteriorating. I have removed the kick plate and at this point in time I do not see any leakage under the dishwasher.

How easy is the job to replace this ring? If it isn’t too complicated of a job, I would like to give it a try, but I can’t find any information or videos on the job.

This dishwasher is basically running fine and cleaning the dishes, but it is 21 years old and I wonder if now is the time to replace the dishwasher rather than repairing it.

Any help appreciated…

Patricia
DSC05175.jpg (21.1 KB)

Here are your parts
Parts for Maytag DWU9200ABX Dishwasher - AppliancePartsPros.com

Here is a link to a manual.
It should help you decide if you want to tackle this.
You will have to join the site and be logged in to be able to download the manual.
http://appliancejunk.com/forums/index.php?action=downloads;sa=view;down=420

I think the part you want is item 25 in section 04.
Click on it’s picture or description for more info about that part.

Thanks for the prompt reply. I would agree that is the part (#25 in section 4). The manual is helpful as it shows some very good photos of the parts all taken apart, although it doesn’t actually reveal how to replace the seal… still deciding…