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Stock Number: 209971
Exterior Length: 40 ft 9 in
Sleeps: 4
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tandem
Description: Used 2022 Keystone RV Montana 3813MS
Details: Keystone Montana fifth wheel 3813MS highlights: Front Master Suite Kitchen Island Rear Living Area ...
Updated: Friday, July 24, 2026 07:30 PM
Location: Huntsville, Alabama
Seller: Bankston Motor Homes of Hunstville
Stock Number: 41870A
Exterior Length: 40 ft 9 in
Condition: Used
Exterior Width: 8 in
Exterior Height: 13 ft 4 in
VIN: 4YDF38120M4704517
Description: Overview Welcome Aboard the 2021 Keystone Montana 3813MS: Redefining Travel with Every Mile! The 2021 Keystone Montana 3813MS is not just an RV; it...
Updated: Wednesday, July 22, 2026 03:28 AM
Location: Mesa, Arizona
Seller: RV Country - Mesa, AZ
Stock Number: 356614
Exterior Length: 3 ft 5 in
Sleeps: 4
Number of Slide Outs: 3
Condition: Used
Exterior Height: 13 ft 4 in
Description: USED 2021 KEYSTONE MONTANA 3813MS – 356614
**Keystone Montana fifth wheel 3813MS highlights:**
- Hide-A-Bed Sofa
- Residential Refrigera...
Updated: Friday, July 17, 2026 03:32 AM
Location: Dover, Florida
Seller: General RV Center - Dover
Stock Number: LAG8022X
Exterior Length: 41 ft 9 in
Sleeps: 4
Number of Slide Outs: 3
Condition: Used
Number of Axles: Tandem
Description: Used 2021 Keystone RV Montana 3813MS
Details: ***COMING SOON*** Call for pricing: Keystone Montana fifth wheel 3813MS highlights: Hide-A-B...
Updated: Monday, June 15, 2026 10:48 AM
Location: Lagrange, Georgia
Seller: Southland RV LaGrange
Stock Number: 7695
Exterior Length: 40 ft
Sleeps: 4
Number of Slide Outs: 3
Condition: Used
Air Conditioning: Yes
Description: Front Bedroom - Front Bathroom: 3 Slides, Air, Awning, Slide Toppers, Back Ladder, 2 TV'S, Fireplace, Sofa/Bed, Theater Seating, Refrigerator, Mic...
Updated: Friday, July 24, 2026 02:00 AM
Location: Clyde, Ohio
Seller: Town & Country RV Center Inc.
