The 2026 Keystone Montana High Country 381TB is a family-oriented fifth-wheel RV known for its two full bathrooms, two private bedroom suites, and lofted sleeping area. It features four slide-outs to maximize living space and comes equipped with a residential refrigerator. 

Floor plan and sleeping capacity

• Dual bedroom and bath: The layout includes a private bedroom and full bathroom in both the front and rear of the RV.

• Lofted sleeping area: An additional loft provides extra sleeping space above the rear bedroom, bringing the total sleeping capacity to up to 10 people.

• Private rear entry: The rear master bedroom has its own exterior entrance.

• Main living area: The kitchen and living area are centrally located, and the kitchen includes an island and a hutch. 

Dimensions and specifications

• Length: 42’5”

• Exterior Height: 13’ 4”

• Dry Weight: 14,451 lbs

• Fresh Water Capacity: 75 gals

• Gray Water Capacity: 135 gals

• Black Water Capacity: 98 gals

Key features

• Exterior: Includes two power retractable awnings, a fully walkable roof, and a MaxTurn™ front cap with KeyShield™ automotive-grade paint.

• Leveling system: Features Ground Control® four-point electric auto-leveling with hitch memory.

• Suspension: Comes with MORryde CRE3000 suspension for a smoother ride.

• Solar power: Equipped with SolarFlex™ solar power systems.

• Interior: Has Thomas Payne Collection furniture, premium solid-surface kitchen countertops, and a Smart HDTV.

• HVAC: Features a 35,000 BTU automatic heater and a 15,000 BTU automatic air conditioning unit.

• Appliances: Includes a residential refrigerator and a 24-inch range.

• Storage: The master bedroom includes multiple closets and under-bed storage.