WDH size

No, I haven't found out yet. There is 4 feet of snow between the camper and myself and constant below zero temps and the hitch is in the front pass thru and the camper is under wraps. Hopefully in a few weeks I can get at it. When I first got the the hitch, it was installed when I bought a 2012 Crossroads Z-1 211RD with a dry wt of around 4100# and a hitch wt of between 450-500#. I never thought about it when I traded that in for a 2013 winnebago Minnie 2201DS with a listed hitch wt of 620# and the dealer never brought it up either. So, either I am good for the Minnie or my hitch has been undersized for a year. So whether I get a new camper this year or not, I guess I have to check the rating of my hitch.

If you can find a part number on it, here is a link to all of Reese Pro Series hitches.
Barney

it might also be helpful, if you had posted info on your trailer, year-make-model. then we'd have an idea of what your Pro WDH was matched to.

Did you figure it out?

Our Reese WDH only has stickers on it, unless it's stamped under the stickers. I wonder if measuring the bar diameter with a micrometer would give a clue and compare it to what others may have?

The manufacturer should be able to help:

Pro Series

Should be stamped on the spring bar.