2026 Keystone RV Montana 3900RK

NewFifth wheel|Stock #33541|Located at Crestview RV in Selma, TX
$132,995$172,929
Save $39,934

Keystone Montan fifth wheel 3900RK highlights:

  • Rear Kitchen

  • Dual Bath Sinks

  • Exterior Pull-Out TV

  • Bar with Wine Refrigerator

It will be so easy to enjoy trips in this spacious fifth wheel! There are four slides found throughout, giving your crew plenty of space to stretch out and relax. You can prepare your best meals in the rear kitchen that includes a four-burner range, convection microwave, dishwasher prep, and multiple overhead cabinets for storage. There is a pull-out dinette for dining space, along with an L-shaped sofa and a bar with a wine refrigerator to entertain guests. The middle half bath features washer/dryer prep and storage, making this space the perfect mud room that is just steps away from the main entry door. The spacious master bedroom includes a king bed slide out, a bedroom fireplace and a dresser with a TV, plus a large front bath with dual bah sinks and a master closet! Outside, two power awnings, dual pull-out storage trays, and a pull-out TV makes the exterior just as accommodating as the interior!

Enjoy luxury, innovation, and the outdoors in any one of Montana's finest fifth wheels. Each set the standard with exceptional features, and exciting factory installed options to provide you a great home on the road. Keystone's 12" I-beam chassis with z-frame technology provides a strong and durable foundation to your fifth wheel, and the four-season living package will help extend your camping season. There are also square frameless windows outside, along with storage solutions, and a hydraulic leveling system that will have you set up in no-time! Inside, you'll love the hardwood cabinetry, solid surface countertops, spacious showers, and cozy bedrooms!

Options:

  • EXT DOOR CUSTOM PAINT

  • PEACE OF MIND PACKAGE

  • CONVENIENCE PACKAGE

  • ULTIMATE COMFORT PACKAGE

  • 6 POINT HYDRAULIC AUTO LEVELING

  • SOLAR FLEX PROTECT

  • WASHER AND DRYER

  • RVIA SEAL - GO CAMPING

Specifications

Length

43 ft 10 in

Sleeps

6 people

Slideouts

4

Unit features & options

  • 12" I-beam w/ z-frame technology
  • Helux Pin Box
  • 2" thick composite backed high gloss fiberglass sidewalls and insulated rear wall
  • 4k Square Frameless tinted safety glass windows
  • Dual pane frameless windows w/ safety tint (optional)
  • Fiberglass front cap w/ KeyShield automotive-grade paint
  • Fully walkable roof w/ Alpha seamless TPO membrane system and 5" rafters
  • Rear ladder
  • Hydraulic slideouts on main level w/ individual switches & electric slideouts on upper deck
  • Insulated underbelly w/ forced hot air & electric tank heaters
  • Curt TCS (Touring Coil Spring) 8K Axles
  • Curt ABS (Anti-Lock Braking System)
  • 17.5" Wheels
  • H-Rated Tires
  • TPMS Prep
  • 6' 6" tall 30" wide entry door w/ screen & friction hinge
  • 4 Step entry steps w/ strut assist
  • Large pass-through storage w/ oversized slam latch door
  • Premium oversized steel slide out storage tray
  • Slide Out rear Gear Storage Trays.
  • Back-up camera prep
  • 2nd battery disconnect dedicated to residential refrigerator (inverter models)
  • Dual battery boxes
  • Water connections, black tank flush, outside shower w/ quick connect hose, winterization kit, water heater bypass, power tank fill, waste & water handle valves, 110V outlet, shutoff valve, 12V compartment light, enclosed low point drains, intuitive KeyTV satellite/cable/ antennae source control

Full specifications

AC BTU31500 btu
Available BedsKing
Awning Info14' and 18' Lippert 12V Electric w/LED Lights
Axle Count2
Convection CookingYes
Cooktop Burners4
Furnace BTU35000 btu
LP Tank Capacity20 lbs
Number of Awnings2 ft
Number of LP Tanks2
Refrigerator Size20 cu ft
Refrigerator Type12V
Shower Size30" x 48"
Shower TypeStandard
Sleeps4
Slides4
TV InfoLR 55" 4K Smart TV
Washer/Dryer AvailableYes
Water Heater TypeOn Demand

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2026 Montana 3900RK

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