Cover from Onan
I called a local dealer and got a fairly high price. Called Onan and for about $100 got a cover, cover grommets and a new air filter. I am going to screw the cover on with one screw so I don't have this problem again. Running without the cover will burn up the generator. I got an email about this issue from a Tiffin owner who has a screw mounted by Tiffin. Check your covers!
2007 391TS UFO Chassis