I literally had to call the nearest Jayco dealer and order it from them back 10 years ago. I'm sorry that my records don't go back far enough to give a proper product name.
However, I just found a source for you: Jayco Door Seal Bug Wipe
It looks like the part number could be PA-JAYC0058252
I would suggest buying two as the source of these seems to be drying up.
Can you send a picture of the refurbished door? Particularly the bottom trim. I am wondering if there is any weather stripping on the bottom of the door or door sweep. Thx