Speaking of older Norcold fridges....
Around the time we bought our 2007, there were numerous posts on RV forums of the plastic hinge of the Norcold fridge door breaking. Replacement doors soon became impossible to find. Because our fridge door hits the bed before swinging to the point of stress, I felt the problem is of minimal concern, but my head got the best of me and so I bought and installed special reinforcement hardware to assure it would never happen. It was marketed specifically to address the problem. I bought two sets and also reinforced the freezer door.