Described in ETKA as round seal but no size given which is unusual. 01V927322A for automatic 5 speed transmission. You'll need two. The harness and its seals are listed in electric not transmission that may be why he didn't find it.
Thanks cchief22 & passat03wagon! I got the seals from the dealership once I could give them the correct part number. No other source close to me in Canada it seems.
I also laid out some $$$$ for the "real VW" transmission pan gasket. It leaked like a sieve. I put it in dry and cleaned the heck out of the transmission and the pan beforehand.All the holes lined up and I did the usual tightening sequence.
The one that came out had sealant on it and upon closer inspection it looks as if the pan has been repaired at some point. A big patch weld on the bottom. Maybe the pan is twisted or something.
I had an old pan but gave it away long ago. They are super common here in the yards around Denver and if I was going to a yard soon I'd pick one up for you, but alas, all my Passat's are running flawlessly at the moment
You might be able to find one on ebay or something but shipping to Canada could get expensive.