Unfortunately, Thor doesn't sell direct so you have to order parts from a dealer.
A lot of people have had good success using Total Value RV in Elkhart, Indiana to ship them parts, but they were recently purchased by LazyDays and I don't know how that has changed their response to requests for nation wide shipping. But you can try them.
https://www.lazydays.com/locations/i...cid=33-0257-09