Replacement Exhaust Vent Damper for Travel Trailer
Updated 08/19/2026 | Published 08/11/2026
Products Featured in This Question
Question:
I need a replacement damper for the range exhaust vent on my 2022 forrest river mico boost xlr. The damper opening measures roughly 10.75inch x 4 The outside dimensions are 12.5inch x 5.5inch I didnt see dimensions for this product listed. Thanks
asked by: Larry
(click to enlarge)
Expert Reply:
Hey Larry!
The Replacement Damper for B&B RV Endura Range Exhaust Vent # BM39GR measures 12" wide x 4-3/4" tall. Based on the 10-3/4" x 4" opening you measured, the damper is large enough to cover the opening.
This replacement is designed specifically for B&B Endura range exhaust vents with 5/8" to 1-1/2" flanges, so I can't say for certain that it will fit your existing vent without knowing the manufacturer. From your photo and measurements, though, it does look like a possible match.
The damper is also available in black as part # BM99GR.
If you can find a brand name or model number on your existing exhaust vent, send that over and I can help confirm the fit.
Robert
8/18/2026
Purchased the flap since the two little tabs broke off on our new one. Not sure what the exact measurements are, but we have a 2024 Outdoors RV 24RKS. It fits perfectly with very little replacements effect. I would recommend vs replacing the entire unit/exhaust vent.
Jerry B.
8/19/2026
Product Page this Question was Asked From
Replacement Damper for B&B RV Endura Range Exhaust Vent - Black
- Accessories and Parts
- RV Range Hoods
- RV Vents and Fans
- Range Hood
- Damper
- B and B Molders
more information >
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Bob A.
8/18/2026
I purchase one to replace mine that fell off, didn’t Fit ended up replacing the entire wall vent…