I first order the diverter valve seal gasket and replaced it. That didn't fix the issue. Then I noticed that the leak was coming specifically from the seal between the white plastic body holding the water motor and the gray body with notches that attaches to the sump. Those parts are not sold separately so I ordered the diverter valve and that fixed the issue. A couple of notes:
A couple of notes:
* I found it quite difficult to get the diverter valve up into place on the sump. From the left side, i could not get enough leverage to push it up evenly ( the other side of the valve would not go up into place). I needed to push it up from the other side (right side) of the dishwasher. On the right side the circulation pump hangs in place with a rubber gasket type hanger. Disconnecting the circulation pump from the hanger gave me more room to push the diverter valve up onto the sump.
* to reconnect the circulation pump tube (gray tube) up into the bottom of the diverter valve (white tube) I used a long pry bar. The circulation pump pipe has a couple of tabs that you can use a pry bar to push up into place