The 2026 Keystone Montana High Country 377FL is a premium fifth wheel built for both style and functionality, offering a unique front living layout with theater seating, dual hide-a-bed sofas, and a large entertainment center. The rear private bedroom boasts a king bed with plenty of storage, while a loft above adds extra sleeping space for kids or guests. A residential kitchen with an 18 cu. ft. fridge, solid-surface countertops, and breakfast bar makes meal prep a breeze, and the spacious bathroom features a large shower with a seat. With four slide-outs, dual entry doors, auto-leveling, and high-end finishes, it’s perfect for extended trips or full-time RV living in comfort.
The 2026 Keystone Montana High Country 377FL is a premium fifth wheel built for both style and functionality, offering a unique front living layout with theater seating, dual hide-a-bed sofas, and a large entertainment center. The rear private bedroom boasts a king bed with plenty of storage, while a loft above adds extra sleeping space for kids or guests. A residential kitchen with an 18 cu. ft. fridge, solid-surface countertops, and breakfast bar makes meal prep a breeze, and the spacious bathroom features a large shower with a seat. With four slide-outs, dual entry doors, auto-leveling, and high-end finishes, it’s perfect for extended trips or full-time RV living in comfort.
| Stock # | P740227 |
| Location | Des Moines |
| Year | 2026 |
| Make | Keystone |
| Model | Montana High Country |
| Trim | 377FL |
| Condition | New |
| Secondary Class | Front Living, Rear Bedroom |
| Dry Weight (LBS) | 13513 LBS |
| Hitch Weight (LBS) | 2620 LBS |
| Max Sleeping Count | Up to 10 |
| Category Class | Fifth Wheel |
| Interior Color | Kingston, Mystic White |
| VIN | 4YDFHMU29TA740227 |
| Length (FT/IN) | 42' |
| Gross Weight Rating (LB/KG) | 14364 LBS |
| Total Fresh Water Tank Capacity (GAL/L) | 75 |
| Total Gray Water Tank Capacity (GAL/L) | 78 |
| Total Black Water Tank Capacity (GAL/L) | 39 |
| Number Of Slideouts | 4 |
| General |
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