New 2026 Keystone RV Montana 3900RK
+54
- SALE PRICE: $144,977
- MSRP: $178,081
- You Save: $33,104
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36ft long
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15,030 lbs
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Sleeps 4
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3 slides
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Rear Living AreaKitchen Island
3900RK Floorplan
Specifications
| Sleeps | 4 | Slides | 3 |
| Length | 35 ft 11 in | Ext Height | 13 ft 4 in |
| Interior Color | OAKMONT | Hitch Weight | 3000 lbs |
| Dry Weight | 15030 lbs | Cargo Capacity | 3970 lbs |
| Fresh Water Capacity | 77 gals | Grey Water Capacity | 100 gals |
| Black Water Capacity | 50 gals | Tire Size | 215/75R17.5H |
| 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 | 10' and 18' Lippert 12V Electric w/LED Lights | Axle Count | 2 |
| Washer/Dryer Available | Yes | Number of LP Tanks | 2 |
| Shower Type | Standard | VIN | 4YDFM0V26T4700950 |
Description
Experience luxury fifth wheel living like never before with the New 2026 Keystone Montana 3900RK, a premium destination for travelers who refuse to compromise comfort while exploring the open road. Designed for extended stays, weekend escapes, and full-time RV adventures, this Montana delivers residential elegance, exceptional storage, and an innovative rear kitchen floorplan that transforms every campsite into your personal retreat.
Whether you're chasing mountain sunrises, lakeside weekends, or cross-country journeys, the Montana 3900RK provides the perfect blend of upscale living and rugged capability. Built with Keystone's legendary quality and attention to detail, this fifth wheel is ready to take your camping lifestyle to the next level.
Highlights and Key Features
• Spacious Rear Kitchen Design featuring expansive countertop space, abundant cabinetry, residential appliances, and a layout that makes meal preparation enjoyable whether you're cooking for two or entertaining guests.
• Luxury Living Room with theater seating, premium furnishings, large panoramic windows, entertainment center, and fireplace for relaxing after a day of adventure.
• Residential Kitchen Amenities including solid-surface countertops, large refrigerator, high-end appliances, deep stainless-steel sink, and extensive pantry storage.
• Free-Standing Dinette perfect for family meals, game nights, remote work, or planning your next destination.
• Private Front Master Suite offering a king-size bed, generous wardrobe storage, washer and dryer prep, and a relaxing atmosphere designed for extended travel.
• Spacious Bathroom featuring residential-style fixtures, large shower, vanity storage, and premium finishes throughout.
• Four-Season Living Capability with advanced insulation and climate management systems designed to help extend your camping season.
• Massive Pass-Through Storage allowing you to bring all your camping gear, outdoor furniture, and travel essentials.
• Premium Construction featuring a durable frame, quality materials, and Keystone's commitment to long-lasting performance.
• Multiple Slide-Outs creating an exceptionally open and residential living environment with room to stretch out and enjoy every destination.
What Makes the Montana 3900RK Stand Out Above the Rest?
The Montana 3900RK stands apart by combining one of the industry's most sought-after rear kitchen layouts with true residential luxury. While many fifth wheels focus solely on sleeping capacity, the 3900RK is designed around everyday living. The expansive kitchen, oversized living area, premium furnishings, and abundant storage create a home-like experience that few competitors can match. It's ideal for couples, seasonal campers, and full-time RVers seeking comfort without sacrificing mobility.
The thoughtful separation between the kitchen, living room, and bedroom creates distinct living spaces, making this RV feel larger and more functional than many units in its class. From weekend getaways to coast-to-coast adventures, the Montana 3900RK is built to elevate every journey.
Why Buy From Campers Inn RV?
Campers Inn RV is the nation's trusted family-operated RV dealership network with decades of experience helping families create unforgettable camping memories. When you purchase from Campers Inn RV, you'll enjoy:
• A knowledgeable and friendly RV team dedicated to finding the perfect RV for your lifestyle.
• Competitive pricing and outstanding value.
• Extensive inventory with top RV brands and floorplans.
• Professional service and support before and after the sale.
• Comprehensive RV orientation to help you travel with confidence.
• A commitment to customer satisfaction that continues long after you drive away.
The New 2026 Keystone Montana 3900RK isn't just a fifth wheel—it's your gateway to luxury camping, unforgettable adventures, and the freedom to explore wherever the road leads. Pack your gear, choose your destination, and start creating memories that will last a lifetime.
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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*All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn locations. Campers Inn RV Sales 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 inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.