2026 Keystone RV Montana High Country 381TB

Vehicle Photo
  • MSRP: $112,766
  • Dealer Discount: $28,789
  • Finance Incentive: $4,000
  • Sale Price: $79,977
  • As Low As: $535 /mo (Edit)
Stock #: 21174422
Tampa, FL
  • Available
  • New
  • Class: Fifth Wheel
  • Length: 42 ft 5in
  • Slides: 4
  • Dry Weight: 14,451
  • Sleeps: 7

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  • Front Bedroom
  • Kitchen Island
  • Loft
  • Rear Bath
  • Two Entry/Exit Doors
  • Two Full Baths
Floorplan
  • Available Beds King, Queen
  • Exterior Height 13 ft 4in
  • Pin Weight 2,705 lbs
  • Gross Weight 16,500 lbs
  • Dry Weight 14,451 lbs
  • Tire Size ST235/80R16G
  • Axle Count 2
  • Fresh Water Capacity 75 gal
  • Grey Water Capacity 135 gal
  • Black Water Capacity 98 gal
  • Furnace BTU 35,000
  • Refrigerator Type GE Energy Star Residential with Ice Maker
  • Refrigerator Size 18
  • Cooktop Burners 3
  • Shower Size 48"" x 30
  • Shower Type Shower w/Seat
  • Electrical Service 50 amps
  • Washer/Dryer Available Yes
  • TV Info LR 50"" LED Smart TV
Hit the road in comfort and confidence with the new 2026 Keystone RV Montana High Country 381TB, a premium fifth wheel designed for travelers who want residential luxury wherever the journey takes them. Available now at LazyDays Powered by Campers Inn, this model is ideal for extended trips, family adventures, and full-time RV living.
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Travel-Ready Design for Every Journey

The Montana High Country 381TB is engineered with long-distance travel in mind. Its durable construction, aerodynamic profile, and high-performance insulation make it well-suited for cross-country road trips and multi-season exploration. Whether you're heading to national parks, coastal highways, or mountain retreats, this fifth wheel delivers a smooth towing experience and dependable comfort at every stop.

Spacious Multi-Room Living

Perfect for families or travelers who want extra space, the 381TB features a unique two-bedroom layout with a private rear bunkhouse. This makes it easy to travel with kids, guests, or even use the extra room as a mobile office. The main living area offers theater seating, a large entertainment center, and panoramic windows that bring the outdoors in—ideal for relaxing after a day of exploring.

Residential Kitchen for Life on the Road

Cooking while traveling has never been easier. The fully equipped kitchen includes solid-surface countertops, a residential refrigerator, a large pantry, and a center island for added prep space

†Lazydays strives to ensure the accuracy of the information provided on this website. However, actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing or specifications. Specifications and availability subject to change without notice. Price, length, weight, or any other specifications cannot be relied upon. Buyers should verify and confirm all claims made on the website. Sale price includes all manufacturer discounts and rebates. All prices listed on this site exclude tax, tags and title fees. Applicable government fees, state taxes, dealer fees and emissions testing charges will be added to comply with state vehicle codes. Freight and prep costs are additional and vary by state. Contact Lazydays for complete details.

*90 Days – Payments can be deferred for 90 days with approved credit. Interest accrues from contract date. Financing terms subject to lender approval. Not valid with other offers. Actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing. Specifications and availability subject to change without notice. Document fees vary by location. See dealership for complete details.

**Lazydays believes the specifications on this site supplied by the manufacturer to be correct at the time posted. However, specifications, standard equipment, model availability, options, fabrics, and colors are subject to change without notice. Some equipment may be unavailable when a vehicle is built. Some vehicles are pictured with options, which may be available at extra cost or may not be available on some models. You should verify the equipment that is on all vehicles. If a new vehicle shown on this website is subject to an open safety recall, Lazydays cannot deliver the vehicle to you until the recall repair is completed. This is a requirement of federal law.

***The advertised discount contains a $4,000 finance incentive. Finance Incentive applies if financing for your RV purchase is obtained with assistance by Lazydays and placed with a third party lender. Terms and Conditions may apply. Contact our finance department for further details.

****Margaritaville offer valid for a limited time only at Lazydays RV of Tampa. Customers who purchase a new RV or complete a qualified service appointment (appointment must be booked and customer must show for the appointment) are eligible to receive a complimentary 3-day, 2-night stay at Camp Margaritaville RV Resort of Auburndale. Offer valid while supplies last. Promotion is non-transferable, has no cash value, and cannot be combined with other offers or promotions. Limit one promotional stay per customer, per transaction. Resort stay subject to availability and blackout dates may apply. Resort reservation must be made within 30 days of RV purchase or completed service appointment. Valid for Florida residents and legal U.S. residents only, 18 years or older. Additional terms and conditions may apply. Lazydays RV of Tampa reserves the right to modify or cancel this promotion at any time without notice. Void where prohibited by law.