I bought both doors and hardware for our unit to add some drawers and doors to places where there should have been some in the beginning. So yes, they sell parts for the units.
The biggest problem is getting the right ones to begin with. I got with the parts tech at the dealer and looked on their computer and picked out the right ones before they ordered them.
Salem 29RKSS Pushing a GMC Sierra 2500HD!
Gotta go campin!