+33 
- SALE PRICE: $89,977
- MSRP: $125,628
- You Save: $35,651
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35ft long
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12,881 lbs
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Sleeps 4
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3 slides
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Rear Living AreaKitchen Island
3123RL Floorplan
Specifications
| Sleeps | 4 | Slides | 3 |
| Length | 35 ft 1 in | Ext Height | 13 ft 4 in |
| Hitch Weight | 2580 lbs | Dry Weight | 12881 lbs |
| Cargo Capacity | 3699 lbs | Fresh Water Capacity | 70 gals |
| Grey Water Capacity | 88 gals | Black Water Capacity | 49 gals |
| Tire Size | ST235/80R16G | Furnace BTU | 35000 btu |
| Available Beds | King | Refrigerator Type | Residential w/ Ice maker |
| Refrigerator Size | 18 cu ft | Convection Cooking | Yes |
| Cooktop Burners | 3 | Shower Size | 48" x 30" |
| Number of Awnings | 2 | Axle Weight | 7000 lbs |
| LP Tank Capacity | 30 lbs | Water Heater Capacity | 16 gal |
| Water Heater Type | Gas/Electric Quick Recovery | AC BTU | 45000 btu |
| TV Info | LR 50" Smart TV, BR 32" LCD TV | Awning Info | 16' Electric with LED Lights |
| Axle Count | 2 | Washer/Dryer Available | Yes |
| Number of LP Tanks | 2 | Shower Type | Shower w/Seat |
| Electrical Service | 50 amp | VIN | 4YDFM0R20T4700047 |
Description
Experience luxury, space, and unmatched adventure-ready design with the all-new 2026 Keystone RV Montana 3123RL, a fifth-wheel RV crafted for travelers who want residential comfort and premium features while exploring the open road. Designed for couples or families who crave spacious interiors, high-end amenities, and effortless towing, the Montana 3123RL turns every campground into a home-away-from-home while making your RV lifestyle more convenient and enjoyable.
The Keystone Montana 3123RL offers a rear living floorplan, creating a wide-open interior that balances comfort with functionality. A large slide-out expands the main living area, providing room for a plush sofa, theater seating options, and a freestanding dinette. Large panoramic windows fill the space with natural light and stunning views, giving the interior a bright, welcoming feel while connecting you to the beauty of your surroundings.
At the heart of the Montana 3123RL is a gourmet-style kitchen, featuring solid surface countertops, a three-burner cooktop, microwave, and a residential refrigerator. Ample cabinetry, a pantry, and counter space make cooking and meal prep easy and enjoyable on the road. Whether you’re preparing quick breakfasts or full family dinners, this kitchen is equipped to handle every culinary need with style and efficiency.
The private front bedroom provides a peaceful retreat with a queen bed, wardrobe storage, and overhead cabinets, offering a cozy space to rest and recharge. Additional sleeping options are available with convertible seating in the living area, making the Montana 3123RL versatile enough to accommodate family or guests comfortably.
The full bathroom is thoughtfully designed with a residential-style shower, vanity, and linen storage, ensuring convenience and comfort no matter where your travels take you. Premium finishes and durable materials throughout the interior provide long-lasting quality and a modern, stylish aesthetic.
Outdoor living is just as impressive with the 2026 Montana 3123RL. A large power awning creates a comfortable shaded space for outdoor relaxation and dining, while exterior storage compartments give you plenty of room for camping gear and essentials. Designed for both traditional campgrounds and off-grid adventures, the Montana 3123RL is built to handle extended travel with ease.
Comfort is prioritized year-round with ducted air conditioning, a reliable furnace, and high-quality insulation that help maintain an ideal interior climate regardless of the weather outside. Keystone’s attention to construction and detail ensures that every journey is smooth, comfortable, and worry-free.
Why choose the 2026 Keystone RV Montana 3123RL? It delivers the perfect blend of residential comfort, smart design, and premium features in a towable package built for adventure. From its rear living layout and gourmet kitchen to the private bedroom and outdoor enhancements, every detail is designed to maximize your enjoyment on the road.
When purchasing from Lazydays RV powered by Campers Inn RV, you’re choosing a trusted partner for your RV lifestyle. With a wide selection of new and pre-owned RVs, competitive pricing, and a knowledgeable team ready to guide you, finding your perfect RV is simple and stress-free. Flexible financing options and dedicated service support ensure your investment stays road-ready for years to come.
Choosing Lazydays RV powered by Campers Inn RV means more than buying a fifth-wheel—it means gaining a partner committed to your adventures. Their expert guidance, customer-focused approach, and ongoing support give you the confidence to explore farther and enjoy more.
The 2026 Keystone RV Montana 3123RL is ready to transform your travel experience with luxury, comfort, and freedom. Begin your journey today with Lazydays RV powered by Campers Inn RV and discover the joy of life on the road like never before.
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.