Looking for the item under the hood that actually does the change or the inside at the controls? This is a place to check for parts:
https://www.winnebago.com/Files/File...GO/3wpf30w.pdf
I chased the one for out front to get this info as possibly what you need?
Click for best view or go direct?
With the part number, you may be able to chase it by putting that number in for a search or you may need to search farther out at salvage yards, etc. if no longer stocked?
Possible it is not an RV specific part but might be found chasing parts for the chassis you are on as there would be so many more for trucks, etc. ?
I'm guessing it might have been part of the stripped chassis and not part of what Winnebago added, but that IS a guess!
Good luck in the chase.
Hoping I got you closer but hoping is about all we have left at times!
__________________
Richard
Why no RV year, make and floorplan on MY signature as we suggest for others?
I currently DO NOT have one!