We have the 16' Dometic Dome Awning that we purchased thru the dealer when we bought our trailer......yes, it fits our MPG185...sort of! Unless they have changed the specs on it then it will not give you that "made for" custom fit. It slides thru the channel and gives you a nice option for an outdoor dry space. However, it will not fit snuggly around the trailer. You have to come up with your own options to make the connections on the side of the trailer. The one we purchased, which is likely still the same, was more suited to a standard "rectangular" camper body so the curved edges of the MPG present a challenge. I use bungee chords to pull it tight around the edges. Also, the one piece bottom screen section meant to cover between your trailer bottom and ground is difficult to manage with the MPG fenders. I ended cutting mine in three pieces and securing with magnets to the frame behind the wheel and steps. If your expecations are for a custom fit then you may be disappointed, but it does give you a nicer "roomy" option..you just have to make it work for you. I also purchased a 14' bag awning that I just leave attached in the channel and it makes for a nice and quick awning setup. I carry both so I have the option to use either one. Hope this helps...