After watching the repair video, I determined the repair was pretty straight forward, so I ordered the part in anticipation of the unit failing soon. The part arrived the next day of the order being processed by this company.
The only surprise was that I needed a #10 TORX screwdriver for the screw holding the drain pump discharge adapter in place. The only reason my repair took so long was that I was in no hurry,took numerous breaks and made modifications under the cabinet for the machine. I used liquid soap to lubricate the O-rings and gasket surfaces and they went on with no problems. The dish machine runs like new again. Watching the video is invaluable in that it shows tricks that will be needed to gain access to the machine.
The parts program on the website still thinks this doesn't fit my specific model.