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New 2026 Keystone RV Montana 3915TB

Fifth Wheel

Stock #18139

Lorena, TX

1 of 1

MSRP: $154,607

Payments From: $1,140 /mo.

Sleeps 9
4 Slides
Loft

Two Full Baths

43ft Long
15,222 lbs
MYSTIC WHITE

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Specifications

Sleeps	9	Slides	4
Length	43 ft	Ext Height	13 ft 4 in
Interior Color	MYSTIC WHITE	Hitch Weight	2780 lbs
Dry Weight	15222 lbs	Cargo Capacity	2778 lbs
Fresh Water Capacity	70 gals	Grey Water Capacity	137 gals
Black Water Capacity	98 gals	Tire Size	215/75R17.5"H
Furnace BTU	35000 btu	Available Beds	King, Queen
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	1
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 Smart LCD TV
Awning Info	11' & 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	4YDFM0U23T4700096

Description

Keystone Montana fifth wheel 3915TB highlights:

Two Full Baths
Four Slide Outs
Middle Kitchen/Living
Shower with a Seat
Two Power Awnings
Free-Standing Dinette with Storage

Traveling with friends and family is easier than ever with this fifth wheel in tow! There are two master suites; one for you and one for guests! The front master suite includes a king bed slide out, two closets plus additional storage, plus stackable washer/dryer prep if you want the option to make wash day easier. There is also convenient underbed storage, a dresser with a Smart HD TV, plus a private entrance into the dual entry bath. Head to the rear master suite to find just as much comfort with a queen bed slide out, dual closets and a dresser, plus a full rear bath where the second entry door is located. There is also a loft area above this room with three bunk mats for more campers! The middle kitchen and living area includes many comforts, like the power theater seating across from the 50" Smart TV and hide-a-bed sofa, plus the U-shaped kitchen with ample counter space and a 24" range. You'll also find food storage in the pantry and 18 cu. ft. residential refrigerator with an ice maker, or you can choose the slightly larger optional 20 cu. ft. refrigerator!

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. A few other construction features you will appreciate include a MORryde CRE3000 suspension, a fully walkable roof with an alpha seamless TPO membrane system, and 4k square frameless tinted safety glass windows. Each feature stylish interiors with two decor choices paired with beautiful hardwood cabinetry, Beauflor vinyl flooring throughout, central vacuum, plus a La-Z-Boy furniture package for all-around comfort!

Options:

6 POINT HYDRAULIC AUTO LEVELING
DISCOUNT
MONTANA FOUR SEASON LIVING PKG
RES LIVING PKG
RVIA SEAL GO CAMPING
SOLAR FLEX PROTECT

Features

Standard Features (2026)

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
MORryde® CRE3000 Suspension with wet bolts
17.5" Wheels
H-RatedTires
TPMS Prep
6' 4" tall 30" wide entry door w/ screen defender, friction hinge, & screen assist handle
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

Beauflor® vinyl flooring throughout
Hardwood decorative slideout fascia
Reflective window shades built into window
Hardwood decorative valance package
Hardwood cabinetry, stiles, & framing
La-Z-Boy Furniture Package
Decorative backlit crown molding in living area, hardwood base molding in hallway and living area
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
In-floor heating ducts
Tru-fit™ slide construction
Blade Pure™

Kitchen Features

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
Free standing legless dinette w/leaf, 110V outlets, luxury chairs
Kitchen power vent fan w/rain sensor
Flush floor slideout(s)

Appliances & Utilities

(2) 30 lb LP tanks w/ auto changeover
15K BTU Coleman Mach Quiet Series ducted A/C w/ heat pump main A/C
CX3 package: Triple 15K BTU A/C Package
Starlink Prep
35K BTU furnace
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 Stove w/ Matching stainless Steel Drawer
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 w/ night light function
USB & 110V outlets bedside
Foam mattress & decorative bedspread/pillow package
Wood TV cabinet w/32" Smart LCD TV

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)

Dexter® disc brakes (Optional)
Furrion Vision S side & rear observation system (Optional)
Electric power cord reel (Optional)
Surge protector (Optional)
Winegard 4G gateway router (Optional)
Rear fiberglass cap (Optional)
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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Stayed at the RV Station Resort for two months. Friendly staff and great environment. Daily, weekly and monthly rates were all economical and included WiFi, cable, electric, shower access and standard hookups. Lots are all clean and maintained. Playground for the kids and pool in summer. Easily on of

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These folks are really wonderful. I was truly in a bind as I was headed out of town and Tom, the Service Manager came to help, on his own time. I went by a week later and thanked them and they helped me again. Such a terrific experience, I highly recommend them.

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Excellent Customer Service
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RV Station - Waco 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 @254-200-0037 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.

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.

New 2026 Keystone RV Montana 3915TB

3915TB Floorplan

Specifications

Description

Features