Coleman Mach 8 Air Conditioner Shroud, Black, 4700 Series

This is the replacement outer shroud for the Coleman 4700 Series Mach 8 rooftop air conditioner, in black. The shroud is the molded plastic cover that sits over the top of your AC unit up on the RV roof. It's the part that takes all the abuse: sun, hail, low branches, and the constant beating of highway wind. The working guts of the unit live safely underneath. So when the cover cracks or fades, you don't replace the whole air conditioner. You just swap the shroud.

It fits the Coleman 4700 Series Mach 8, the ultra-low-profile 13,500 BTU rooftop unit a lot of trailers and fifth wheels came with from the factory. The Mach 8 was chosen for rigs where roof clearance matters, so the shroud carries that same low, aerodynamic shape. Measured dimensions are 43 inches long, 31 inches wide, and 9 inches tall. Before you order, walk out to your rig, find the model tag on the AC, and confirm it reads 4700 Series Mach 8. Coleman has run several shroud shapes over the years and they aren't interchangeable, so matching the series is the whole ballgame.

Here's the honest truth about why these need replacing. The number one killer is UV. Years of parked-in-the-sun storage bake the plastic until it goes chalky, brittle, and eventually cracks at the corners or along the ribs. Hail is number two. A single bad storm can spider-crack a shroud even though the AC underneath still runs fine. And number three is road debris and low-hanging branches at the campground, which is how a lot of folks find a chunk missing after a trip. None of that means your air conditioner is done. A cracked shroud just needs to come off and a new one bolted back on.

The swap is one of the friendlier RV roof jobs. You're not touching refrigerant, wiring, or the sealed system at all. Get up on the roof safely, back out the handful of screws holding the old shroud down, lift it off, set the new one in place, and drive the screws back in. Most folks knock it out in under half an hour with a basic driver. Do it on a calm day. A big plastic shroud turns into a sail the second a gust comes through, so a second set of hands up top is never a bad idea.

The black finish is worth a word. Black looks sharp and hides roof grime, but a dark shroud does soak up more heat sitting in full sun than a white one would. If your rig originally wore a white cover and you want to match it, we carry the Arctic White version of this same part under its own number. Either color is molded from polypropylene, the same tough, weather-rated plastic the factory uses. It flexes instead of shattering in the cold and shrugs off the chemicals in most RV roof cleaners.

This is a genuine Coleman replacement part, not a generic cover that fits loose and lets wind whistle through. It ships as the shroud only. There's no AC chassis, no fan, and no mounting screws or gasket in the box, so reuse your existing hardware or grab fresh screws if the old ones are rusty. For anybody keeping a good trailer on the road for the long haul, a fresh shroud is a cheap way to make a ten-year-old rooftop unit look and seal like new again.

One more thing worth knowing. Because the Mach 8 sits so low, its shroud is easy to overlook on a walkaround until the crack is already letting water track down toward the roof gasket. If you're up top doing your seasonal sealant check anyway, give the shroud a good look. Catching a hairline crack early and swapping the cover keeps weather out of the unit and off your ceiling. And that's a lot cheaper than chasing a roof leak later.