Replacement Hatch Door for 2022 Keystone Alpine 3620RL

Updated 04/11/2026 | Published 04/03/2026

Question:

Im looking for a Hatch cover door for my power take up real. I have a 2022 Keystone Alpine 3620RL. I saw where you had a B and B RV Hatch Model BM32MR. But the measurements dont match mine. The best I can tell, My opening is 5 3/4inch by 10 3/4inch . Thats close, I didnt remove the inter frame. My door broke off. Is there another model with different measurements? I saw a review where a man said it fit his Montana perfect. Basically same 5th wheel. If you could help me locate a replacement piece for this please.

asked by: Harold E

Expert Reply:

Hey Harold, welcome back! The B&B RV Electric Hatch # BM32MR is the closest match we have for those dimensions. The cutout is 6" tall x 11-1/16" wide with outside dimensions of 7-3/4" tall x 12-5/8" wide. You will have to expand the existing cutout slightly for this to fit. If you really want to avoid that, I would check with a local RV repair shop to see if they have an exact match.

Where are you headed next with the Alpine once you replace that door?

expert reply by: Robin H

B&B RV Electric Hatch
(click to enlarge)

Mike M.

4/6/2026

I had to remove the inner frame and it fit.

Mark

4/6/2026

I was able to reuse the outer frame as the inner door insert was a perfect fit/replacement for my 2022 Vanleigh Beacon fifth wheel

Cory

4/6/2026

I used this door to replace the hatch for my electric cord reel. I have a 2022 Montana legacy and it fit without modification only think i do not like about this door their isn't a little tab that keeps the door like the old one did. also if you want to change the key out to match the old ones so it matches the rest of your trailer it is really easy.

Robin H.

4/11/2026

The comment was made that you have to take the frame out to get the correct measurement and that was 100% correct. My cutout was exactly the size of the replacement door and I have ordered it. Thank you and everyone for all the help.