My popup and A/C unit is a 2003 model year. The Dometic A/C model number is 5795-751. I was noticing that the Shroud cover on top was beginning to get some small cracks around the mounting screws. I thought I would take it off and reinforce the holes. Big mistake! After I removed all of the screws and began to lift it off, it shattered into a hundred pieces. It was as brittle as an egg shell. Now I know why you see so many of them on the side of the highways. They look okay, but they are not! Age makes them very brittle and it doesn't take much to have them come apart and blow off the top. I bought a new one online for $129.00. It was an easy install. Now I'm going to get a cover for the unit in hopes of making it last longer. I say longer...but I think the original one was made in 2003. So I guess I can't complain. TIP: Be careful working around the Shroud. You just might have the same problem.