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Image #1 - New 2026 Keystone RV Montana 3900RK Fifth Wheel - Stock #MT106
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Image #2 - New 2026 Keystone RV Montana 3900RK Fifth Wheel - Stock #MT106 - Floorplan
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- Sale Price: $129,995
- MSRP: $160,455
- Save: $30,460
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Sleeps 4
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4 slides
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Front BathBath and a Half
3900RK Floorplan
Specifications
| Sleeps | 4 | Slides | 4 |
| Furnace BTU | 35000 btu | Available Beds | King |
| Refrigerator Type | 12V | Refrigerator Size | 20 cu ft |
| Convection Cooking | Yes | Cooktop Burners | 4 |
| Shower Size | 30" x 48" | Number of Awnings | 2 |
| LP Tank Capacity | 20 lbs | Water Heater Type | On Demand |
| AC BTU | 31500 btu | TV Info | LR 55" 4K Smart TV |
| Awning Info | 14' and 18' Lippert 12V Electric w/LED Lights | Axle Count | 2 |
| Washer/Dryer Available | Yes | Number of LP Tanks | 2 |
| Shower Type | Standard | VIN | 4YDFM0V23T4700985 |
Description
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!
Features
Standard Features (2026)
PLEASE NOTE: Features and options separated by models below
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3100RL, 3800FL, 3900RK
Exterior
- 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
- Generator prep (optional)
- RVMP Flex Power 5500 Generator (optional)
- LP generator (optional; select models)
- Seamless roto-cast holding tanks
- 50 Amp Power Cord Reel
- Outside shower w/ quick disconnect hose
- Lippert 12V electric patio awning(s) w/ LED lights
- 2nd Lippert 12V electric patio awning(s) w/ LED lights
- Slide-out awning package (optional)
- 3000 lb. towing hitch
- MORryde® Independent Suspension System (optional)
- MORryde® Safe-T-Rail door handle
- Lippert Titan™ leveling system w/ touch screen and underlights
- 12V distribution Giggy Box™
- Frontier Gold full body paint (optional)
Interior
- Hardwood decorative slideout fascia
- Reflective window shades built into window
- Hardwood decorative window frames
- Hardwood cabinetry, stiles, & framing
- Decorative backlit crown molding in living area, hardwood base molding in hallway and living area
- 5K BTU decorative fireplace heater in Bedroom and Living Room
- SBC V-Flow Max Cordless Vacuum
Keystone Exclusives
- Color-coded unified wiring standard
- 4G LTE and Wi-Fi prep
- Tuf-Lok™ thermoplastic duct joiners
- KeyTV™ multisource signal controller
- In-floor heating ducts
- Tru-fit™ slide construction
- Blade Pure™
Kitchen Features
- Full extension ball bearing drawer glides, hidden cabinet hinges
- Solid Surface Backsplash
- Solid surface kitchen countertops
- Solid Surface waterfall island
- Oversized deep stainless-steel sink with attachments
- High-rise pull down faucet
- Adjustable Sliding "Deskette" w/ 4 chairs
- Flush floor slideout(s)
Appliances & Utilities
- (2) 40 lb. LP tanks w/ auto changeover
- 18K Furrion Chill Cube Main A/C with heat pump
- 13.5 K Furrion AC for 2nd and 3rd ACs
- Starlink Prep
- 35K BTU furnace
- 60K BTU Suburban on Demand Water Heater
- 55" 4K Smart TV and JBL 2.1 Soundbar and Subwoofer
- 20 Cu. Ft. 12V refrigerator
- 18 Cu. Ft. residential refrigerator w/ 2000w inverter (optional)
- Residential size stainless steel convection microwave
- 24" Furrion freestanding 4-burner range with 3.7 Cu Ft Oven
- Stackable washer/dryer prep
- Pendant style island light w/ ceiling treatment
Bedroom Features
- 60" x 80" full size queen bed (Optional)
- King size bed
- Adjustable stem reading lights
- USB & 110V outlets bedside
- Foam mattress & decorative bedspread/pillow package
- 40" 4K Smart TV in Bedroom
- Built In jewelry center with hamper
Bathroom Features
- Decorative vanity w/ stainless sink
- Residential 30" X 48" fiberglass shower w/ decorative glass enclosure, skylight, & molded accessory/foot shelf
- Porcelain foot flush toilet
- Bathroom power vent fan w/ rain sensor
Weather Protection
- Four Season Living Package
- 12v heat pads on holding tanks
- Astrofoil insulated slide floors & underbelly
- Dual attic vents
- Heated and enclosed underbelly, convenience center, & dump valves
- Reflective foil insulated front cap
- Tested and approved for 0° usage
Safety
- Breakaway switch
- GFI receptacles
- CO detector
- Smoke detector
- Propane gas leak detector
- Fire extinguisher
Legacy Edition Package (Optional)
- Furrion Vision S side & rear observation system
- Electric power cord reel
- Electric dump valves
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Dealer Stock Only Models: 3123RL, 3231CK, 3531RE, 3532SP, 3623EB, 3761FL, 3781RL, 3795FK, 3857BR, 3901RK, 3915TB, 3941FO
Features may vary by model; see dealer for more details
Exterior
- 12" I-beam w/ z-frame technology
- MORryde® Rubber Pin Box
- 2" thick dual-layered lauan, high-gloss fiberglass sidewalls w/ double laminated & insulated rear wall
- 4k Square Frameless tinted safety glass windows
- Dual pane frameless windows w/ safety tint (optional)
- MaxTurn™ 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
- 7000 lb Dexter Gladiator® thick wall axles w/ upgraded springs & Nev-R-Adjust® brakes (8,000 lb. axles on select models)
- MORryde® CRE3000 Suspension with wet bolts
- 17.5" Wheels
- H-Rated Tires
- H-RatedTires
- TPMS Prep
- 6' 6" tall 30" wide entry door w/ screen & friction hinge
- 6' 4" tall 30" wide entry door w/ screen defender, friction hinge, & screen assist handle
- 4 Step entry steps w/ strut assist
- MORryde® Step Above® entry steps w/ strut assist
- Large pass-through storage w/ oversized slam latch door
- 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
- Generator prep (optional)
- LP generator (optional)
- Seamless roto-cast holding tanks
- 50 Amp electrical service w/ detachable cord & 110v exterior outlet
- Outside shower w/ quick disconnect hose
- Lippert 12V electric patio awning(s) w/ LED lights
- 2nd Lippert 12V electric patio awning(s) w/ LED lights
- Slide-out awning package (optional)
- 3000 lb towing hitch
- MORryde® Independent Suspension System (optional)
- MORryde® Safe-T-Rail door handle
- Lippert Titan™ leveling system w/ touch screen and underlights
- 12V distribution Giggy Box™
- Volcano full body paint (optional)
- Cobalt full body paint (optional)
- Sterling full body paint (optional)
- Glacier full body paint (optional)
Interior
- Hardwood decorative slideout fascia
- Reflective window shades built into window
- Hardwood decorative window frames
- Beauflor® vinyl flooring throughout
- Hardwood cabinetry, stiles, & framing
- Decorative backlit crown molding in living area, hardwood base molding in hallway and living area
- 5K BTU decorative fireplace heater in Bedroom and Living Room
- La-Z-Boy Furniture Package
- 5K BTU decorative fireplace heater
- Central vacuum
Keystone Exclusives
- Color-coded unified wiring standard
- 4G LTE and Wi-Fi prep
- Tuf-Lok™ thermoplastic duct joiners
- KeyTV™ multisource signal controller
- Tru-fit™ slide construction
- Blade Pure™
Kitchen
- Full extension ball bearing drawer glides, hidden cabinet hinges
- Solid surface kitchen countertops
- Oversized deep stainless-steel sink with attachments
- High-rise pull down faucet
- Kitchen power vent fan w/ rain sensor
- Flush floor slideout(s)
- Free standing legless dinette w/ leaf, 110 V outlets, luxury chairs
Appliances & Utilities
- (2) 40 lb LP tanks w/ auto changeover (select models)
- (2) 30 lb LP tanks w/ auto changeover (select models)
- Starlink Prep
- 15K BTU Coleman Mach Quiet Series ducted A/C w/ heat pump main A/C
- 35K BTU furnace
- CX3 package: Triple 15K BTU A/C Package
- 60K BTU Suburban on Demand Water Heater
- 55" 4K Smart TV and JBL 2.1 Soundbar and Subwoofer
- 16 gal. gas or electric quick recovery water heater
- 50" Smart TV & AM/FM/USB stereo w/ JBL® Aura Mizone 3 zone volume control
- 20 Cu. Ft. 12V refrigerator (optional)
- 18 Cu. Ft. residential refrigerator w/ 2000w inverter
- Residential size stainless steel convection microwave
- 24" Furrion freestanding 4-burner range with 3.7 Cu Ft Oven
- Stackable washer/dryer prep
- 24" Furrion Stove w/ Matching stainless Steel Drawer
- Pendant style island light w/ ceiling treatment (select models)
Bedroom
- 60" x 80" full size queen bed (optional)
- King size bed
- Adjustable reading lights
- USB & 110V outlets bedside
- Foam mattress & decorative bedspread/pillow package
- Adjustable stem reading lights w/ night light function
- 40" 4K SMART TV in Bedroom
- Wood TV cabinet w/ 32" SMART LCD TV
Bathroom
- Decorative vanity w/ stainless sink
- Residential 30" X 48" fiberglass shower w/ decorative glass enclosure, skylight, & molded accessory/foot shelf
- Porcelain foot flush toilet
- Bathroom power vent fan w/ rain sensor
Weather Protection
- Four Season Living Package
- 12V heat pads on holding tanks
- Astrofoil insulated slide floors & underbelly
- Dual attic vents
- Heated and enclosed underbelly, convenience center, & dump valves
- Reflective foil insulated front cap
- Tested and approved for 0° usage
Safety
- Breakaway switch
- GFI receptacles
- CO detector
- Smoke detector
- Propane gas leak detector
- Fire extinguisher
Legacy Edition Package (optional)
- Furrion Vision S side & rear observation system
- Dexter® disc brakes
- Electric power cord reel
- Surge protector
- Winegard 4G gateway router
- Rear fiberglass cap
- Electric Dump Valves
- Starlink Standard Kit w/ panel installed on roof
See us for a complete list of features and available options!
All standard features and specifications are subject to change.
All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.
Due to the current environment, our features and options are subject to change due to material availability.
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Open Road RV is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual units on our lot. Please contact us @360-217-8785 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.
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