2026 Keystone RV Montana 3915TB Cobalt
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Description
2026 Keystone RV Montana 3915TB Cobalt
North America's #1 Selling Luxury Fifth Wheel
Embark on a journey of a lifetime with the pinnacle of recreational vehicles that seamlessly blends luxury, innovation, and rugged capability. Designed to cater to the desires of modern travelers and outdoor enthusiasts, the 2026 Montana RVs set the standard for mobile living, with exciting new options like factory-installed MorRyde® independent suspension. Fully refreshed exterior and interior styling redefine the meaning of your home on the road.
Welcome to the family. Welcome to Montana.
Info
Industry
RV
Make
Keystone RV
Model
Montana 3915TB
Trim
Cobalt
Year
2026
MSRP
N/A
Category
Travel Trailer
Subcategory
Fifth Wheel
Specs
Chassis
Weight
Shipping: 15,222 lb.
Length
43 ft 0 in
Max Load
2,778 lb.
Hitch Weight
2,780 lb.
Floorplan
Montana 3915TB
Family
Height (Ext)
13 ft 4 in
Tire Size
215/75R17.5H
Fresh Water
70 gal
Grey Water
137 gal
Black Water
98 gal
Propane (LP) Tanks
2
Propane (LP)
60 lb. | (2) 30 lb LP tanks w/ auto changeover
Sleeps
6
Frame
12" I-beam w/ z-frame technology
Axle Count
8000 lb Dexter Gladiator® thick wall axles w/ upgraded springs & Nev-R-Adjust® brakes
Wheels
17.5" Wheels
Tires
H-RatedTires
Shower
Outside shower w/ quick disconnect hose
Awnings
Lippert 12V electric patio awning(s) w/ LED lights | 2nd Lippert 12V electric patio awning(s) w/ LED lights
Interior
Beauflor® vinyl flooring throughout | Hardwood decorative slideout fascia | Reflective window shades built into window | Hardwood decorative window frames | 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
Fuel Type
Gas
TVs
50" Smart TV & AM/FM/USB stereo w/ JBL® Aura Mizone 3 zone volume control | KeyTV™ multisource signal controller | Wood TV cabinet w/ 32" SMART LCD TV
Warranty
1-year limited base warranty | 3-year limited structural warranty
Beds
King size bed
Air Conditioner
15K BTU Coleman Mach Quiet Series ducted A/C w/ heat pump main A/C | CX3 package: Triple 15K BTU A/C Package
Furnace
35K BTU furnace
Water Heater
16 gal. gas or electric quick recovery water heater
Washer/Dryer
Stackable washer/dryer prep
Refrigerator
18 Cu. Ft. residential refrigerator w/ 2000w inverter
Safety Features
Breakaway switch | GFI receptacles | CO detector | Smoke detector | Propane gas leak detector | Fire extinguisher
