Looking For Replacement Shroud For Dometic Duotherm AC Model 57912.621
Updated 07/06/2026 | Published 04/10/2026
Question:
Looking for a replacement shroud for Dometic Duotherm AC Model 57912.621. Unit is mounted on roof of a 1997 Sunline Solaris trailer.
asked by: James B
(click to enlarge)
Expert Reply:
Hey James, good question. That older Dometic Duo-Therm model can be a little tough to cross-reference by number alone, so the safest way to get the right shroud is by matching dimensions and mounting style.
A very common replacement that works for a lot of those units is the # DMC98FR. It measures about 33-3/4" long, 28-3/4" wide, and 10-1/4" tall. I’d recommend measuring your current shroud and checking the mounting hole pattern to make sure it lines up. On these older units, the overall shape and screw locations matter just as much as the model number.
If your current shroud is cracked or missing pieces, even getting close measurements off the base pan can help. As long as the footprint and height are similar and the mounting points match up, you should be able to swap it without having to drill new holes or modify anything.
If the shroud I mentioned doesn't match up with what you need just let me know your dimensions and I'm happy to look into it and see if we have anything.
James B.
7/2/2026
Hi Jesse, I finally got dimensions for the AC shroud on the trailer. It’s a Dometic DuoTherm. However, the dimensions are 33-1/2” long, 29-1/2” wide, and 10-1/2 high. There are only three attachment points on the side, not 5, though the hole positions look similar. Also, unlike the model DMC98FR, the existing shroud is open behind the condenser coils at the back. Does eTrailer have a shroud that will work?
Jesse M.
7/6/2026
Jesse M.
7/6/2026
Product Page this Question was Asked From
Replacement Shroud for Dometic Duo Therm RV Air Conditioner
- Accessories and Parts
- RV Air Conditioners
- Shrouds
- Dometic
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Brucec
4/16/2026
My camper is a 2011 and the replacement was a direct replacement. The fit was perfect .