Hi Mike,
Bummer on the fridge vent cover flying off.

Finding a replacement will be a hunt; we may be able to help, but we will need some info from you to help hunt with you.
A few questions:
1. I looked at the pics in your photo album.

. Pics of the camper really help, big time! Please confirm you are looking for the bottom or top cover? I assume the bottom, but the top can also come off, even if it is harder as it is screwed on only, I believe.
2. Measure the inside opening (length & width) in the metal frame that would accept the outside dimensions of the missing door and post the dimensions. We know this size is a little bigger than the actual door, but maybe only by 1/8", etc. We need to hone in on the outer dimensions of a replacement door. This door was not only for Sunline; it most likely was made by Dometic back in the day and fit any brand camper.
3. If we cannot find a door that fits as a part for sale, we may be able to find a complete replacement vent door unit, which is an outer frame with a removable door. Please measure (length & width) the rough wood opening in the wall and post the dimensions. In the past, I have had to buy a complete mounting frame and door as a unit to replace the lost door. When we hunt, we will also hunt for a complete door unit.
4. Please post the model and serial number, or better yet, take a picture of the fridge's model tag and post. I may be able to look up the Dometic part number for the vents that go with that fridge.
Hope this helps,
John
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Current Sunlines: 2004 T310SR, 2004 T1950, 2004 T2475, 2007 T2499, 2004 T317SR
Prior Sunlines: 2004 T2499 - Fern Blue
2005 Ford F350 Lariat, 6.8L V10 W/ 4.10 rear axle, CC, Short Bed, SRW. Reese HP trunnion bar hitch W/ HP DC
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