2026 Keystone Montana 3857BR
Fifth Wheel · Luxury Fifth Wheel · 40.92 ft · sleeps 8

The 2026 Keystone Montana 3857BR is a fifth wheel (luxury fifth wheel). At sleeps 8, 40.92 ft long, 14,668 lbs dry, it's positioned for families needing dedicated bunk space for kids.
Floor plan

Photos of the 2026 Keystone Montana 3857BR
Walkthrough video
Video courtesy of RV Video Library on YouTube.
Full specifications
Dimensions
| Length | 40.92 ft |
|---|
Weights
| Dry Weight | 14,668 lbs |
|---|
Living
| Sleeps | 8 |
|---|---|
| Bunkhouse | Yes |
Power & Electrical
| Shore Power | 50 A |
|---|
Amenities
| Outdoor Kitchen | No |
|---|---|
| Theater Seating | Yes |
| Residential Fridge | Yes |
| Fireplace | No |
| Four-Season | Yes |
| Off-Road Capable | No |
Similar Fifth Wheels to consider
Other fifth wheels in the catalog with comparable size and price.
Frequently asked questions
How many people does the 2026 Keystone Montana 3857BR sleep?
The 2026 Keystone Montana 3857BR sleeps 8.
How long is the 2026 Keystone Montana 3857BR?
The 2026 Keystone Montana 3857BR is 40.92 feet long.
What's the dry weight of the 2026 Keystone Montana 3857BR?
The 2026 Keystone Montana 3857BR has a dry weight of 14,668 lbs.
Where can I buy the 2026 Keystone Montana 3857BR?
Pirka Wakka is a brand-agnostic catalog and doesn't sell RVs. The "Buy on Keystone" link on this page sends you to the manufacturer's product page — they'll route you to an authorized dealer.
Not sure if the 2026 Keystone Montana 3857BR is right for you?
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