Photo of Rv
Photo of Rv
Photo of Rv
  • Price: $47,995
  • Year: 2021
  • Model: MONTANA 3931FB
  • Property ID: 6988287
  • Partner ID: 5038380814
  • Posted On: Nov 7, 2025
  • Updated On: Nov 7, 2025

RV Description

Step into luxury with this stunning 2021 Montana 3931FB — Keystone’s flagship fifth wheel built for those who want true residential comfort on the road. At over 41 feet long with triple slide-outs, this floorplan gives you the space and style of a high-end condo wherever you travel.
Inside, you’ll find a rear living area with plush theater seating, a large sleeper sofa, entertainment center with fireplace, and a spacious kitchen island with solid-surface countertops. The residential refrigerator, convection microwave, and premium cabinetry make meal prep feel like home.
Up front, you’ll love the private master suite featuring a king-size bed, generous storage, washer/dryer prep, and the show-stopping front full bath — complete with dual sinks, a huge walk-in closet, and a residential shower. There’s also a half bath mid-coach for guests.
Built with Keystone’s legendary quality, the 3931FB includes:

  • 3 Slide-Outs | Auto-Leveling System | Heated Underbelly
  • 66 gal Fresh Water | (2) 88 gal Gray/Black Tanks
  • 16,500 lb GVWR | 2,530 lb Hitch Weight
  • Climate Guard Insulation & Whisper Quiet ACs


Whether you’re planning to travel full-time or park for the season, the Montana 3931FB delivers unmatched comfort and craftsmanship.
Priced to move — contact RV There Yet in St. Augustine today and experience the Montana difference

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