Front bath, rear kitchen, bar seating, bath and a half
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2026 Keystone Montana 3900RK
NewStock #N5M0988
Listing price
2026 Montana 3900RK
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
The Keystone Montana 3900RK is built around a rear kitchen layout that feels more like a high-end condo than a trailer, anchored by a solid surface waterfall island with four chairs, a high-rise pull-down faucet, and an oversized deep stainless sink. Hardwood cabinetry, backlit crown molding, and dual 5K BTU decorative fireplaces in both the living area and bedroom give the interior a level of finish that holds up even in full-time use. On the outside, the Montana 3900RK earns its keep with a fully walkable TPO roof, hydraulic slideouts on the main level, the Lippert Titan leveling system with a touchscreen, and a 50-amp power cord reel, making setup and breakdown far less of a chore. The optional 18 cu. ft. residential refrigerator with a 2,000W inverter and the MORryde Independent Suspension System are upgrades worth serious consideration if you're putting real miles on it.
Length
43 ft 10 in
Dry weight
17,140 lbs
GVWR
19,405 lbs
Sleeps
4
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
There may be room for price negotiation.
$113,987 – $140,099
This unit is ranked 5 of 18 by asking price in this group.
The listing price on this unit has changed 2 times.
See the complete price timeline and the rest of this unit's pricing insights.
D&D RV Center
Helena, MT
Sells faster than 67% of Montana RV dealers
Compared with 45 dealers in Montana
SALE! WAS $129,995 BUT NOW IS ON SALE FOR $121,439 THROUGH 12-31-26!
BETTER THAN BRINKLEY, SWEETER THAN SOLITUDE-THIS IS THE ALL NEW MONTANA!
INCLUDES 880 WATTS OF SOLAR!
Includes 2 RV Deep Cycle Batteries-Upgrade To 2 Battle Born Heated 100 Amp Lithium Batteries For $1,999! Larger Lithium Upgrades Also Available!
This Keystone Montana fifth wheel 3900RK includes these options:
Oakmont Interior
2 RV Deep Cycle Batteries-Upgrade To 2 Battle Born Heated 100 Amp Lithium Batteries For $1,999! Larger Lithium Upgrades Also Available!
$350 In Store Parts Credit
Camper College Orientation
1 Year Route 66 RV Club Membership
24/7 Tech Assistance
10% Parts Discount At All Route 66 Locations
10% Camping Discounts At KOA
Upgrade To The RV Club Unlimited For Only $219!
Solar Flex 880i-880 Watts Of Solar/2000 Watt Inverter
Washer & Dryer
TCS Suspension With 8K Axles
ABS Braking System
Helux Pin Box
H Range Tires
Triple Air Conditioner Package
6 Point Hydraulic Auto Leveling System
12 Volt 20 Cubic Foot Fridge
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 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 ! Outside, two power awnings, dual pull-out storage trays, and a pull-out TV makes the exterior just as accommodating as the interior!
Other listings for this floor plan, ranked by condition, model year, distance, price, and listing quality.
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!
