Yeah, I wadded through hundreds of photos of connectors and wasn't able to find the exact thing. I gave up and removed the bracket with the potentiometers from the large pedal bracket; and, I have to say, you really don't want to do this as the stupid little links that go from the pedals to the potentiometers are a HUGE pain in the rear to connect back up with the bracket on the tractor: there's tiny washers , including some squishy rubber, almost foam like, and tiny clips, all barely viewable through the hoses and everything. Doing this all outside, on the ground, didn't make it any more enjoyable. But, at least I have the tractor working again: and now I am certain this is all now a thing of the past.
I have an inquiry into the dealer about this, so when I hear back I'll post it here.