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Condition: Used
Exterior Length: 40 ft 9 in
Sleeps: 4
Number of Slide Outs: 3
Number of Axles: Tandem
Exterior Height: 13 ft 5 in
Description: Used 2018 Keystone RV Montana 3811MS
Details: Keystone Montana fifth wheel model
3811MS
highlights: Unique Master Suite Front Window Lounge Wal...
Updated: Wednesday, October 14, 2026 09:25 AM
Seller: RV Station Donna
Condition: Used
Exterior Length: 40 ft
Sleeps: 4
Number of Slide Outs: 3
Gross Vehicle Weight: 13,350 lb
Stock Number: F113SF
Description: Stock Number: F113SF40' 2020 Keystone Montana Legacy 3811MS w/3 Slides & Generator.Experience the pinnacle of luxury with this 2020 Montana Legacy ...
Updated: Tuesday, October 13, 2026 09:28 AM
Seller: PPL Motor Homes - Summerfield
Condition: Used
Stock Number: 100765
VIN: 4YDF3812XK4700875
Description: Primary Used 2019 Keystone Montana 3811MS Fifth Wheel The 2019 Keystone Montana 3811MS is a luxury fifth wheel designed for couples who want reside...
Updated: Tuesday, October 13, 2026 03:06 PM
Seller: Ron Hoover RV & Marine - Tulsa
Condition: Used
Exterior Length: 40 ft 9 in
Sleeps: 4
Number of Slide Outs: 3
Number of Axles: Tandem
Exterior Height: 13 ft 4 in
Description: ✨ Luxury living meets open-road freedom in this 2019 Keystone Montana 3811MS! ✨
If you’ve been searching for the perfect balance of comfort, sty...
Updated: Tuesday, October 13, 2026 11:44 AM
Seller: Kanar RV Sales
Condition: Used
Exterior Length: 40 ft 9 in
Sleeps: 4
Number of Slide Outs: 3
Number of Axles: Tandem
Exterior Height: 13 ft 4 in
Description: Used 2019 Keystone RV Montana 3811 MS
Details: Keystone Montana fifth wheel 3811MS highlights: Unique Master Suite Front Window Lounge Walk-In Cl...
Updated: Tuesday, October 13, 2026 08:06 AM
Seller: Ron Hoover RV & Marine - Tulsa
Condition: Used
Exterior Length: 40 ft
Sleeps: 4
Number of Slide Outs: 3
Fresh Water Tank Capacity: 66 gal
Stock Number: 365623
Description: USED 2019 KEYSTONE MONTANA 3811MS – 365623
Keystone Montana 3811MS Fifth Wheel highlights:
Front Bedroom
Large Kitchen with Island
Rear...
Updated: Thursday, September 17, 2026 03:32 AM
Seller: General RV Center West Palm Beach
Used 2019 KEYSTONE RV CO MONTANA 3811MS
West Middlesex, Pennsylvania
MSRP$48,995 USD $45,495
Condition: Used
Exterior Length: 40 ft 9 in
Sleeps: 4
Number of Slide Outs: 3
Number of Axles: Tandem
Exterior Height: 13 ft 4 in
Description: Used 2019 Keystone RV Montana 3811MS
Details: Keystone Montana fifth wheel 3811MS highlights: Unique Master Suite Front Window Lounge Walk-In Clo...
Updated: Friday, September 11, 2026 03:02 AM
Seller: Best Choice Trailers and RV
Condition: Used
Exterior Length: 40 ft
Sleeps: 4
Number of Slide Outs: 3
Gross Vehicle Weight: 13,920 lb
Stock Number: F125DE
Description: Stock Number: F125DE40' 2019 Keystone Montana 20th Anniversary 3811MS w/3 Slides.C2019 Keystone Montana 20th Anniversary 3811MS, a coach designed f...
Updated: Tuesday, October 13, 2026 09:28 AM
Seller: PPL Motor Homes - Decatur
Condition: Used
Exterior Length: 40 ft 9 in
Sleeps: 4
Number of Slide Outs: 3
Number of Axles: Tandem
Exterior Height: 13 ft 5 in
Description: Used 2018 Keystone RV Montana 3811MS
Details: Keystone Montana fifth wheel model 3811MS highlights: Unique Master Suite Front Window Lounge Walk-...
Updated: Wednesday, October 14, 2026 09:15 AM
Seller: America Go RV - Comfort
