2026 Keystone Cougar 360MBI
Fifth Wheel · Premium Fifth Wheel · 39.25 ft · sleeps 10

The 2026 Keystone Cougar 360MBI is a fifth wheel (premium fifth wheel). At sleeps 10, 39.25 ft long, 12,499 lbs dry, it's positioned for buyers comfortable towing with the right tow vehicle.
Floor plan

Photos of the 2026 Keystone Cougar 360MBI
Walkthrough video
Video courtesy of Michael @ Nomad Life RVs on YouTube.
Full specifications
Dimensions
| Length | 39.25 ft |
|---|
Weights
| Dry Weight | 12,499 lbs |
|---|
Living
| Sleeps | 10 |
|---|---|
| Bunkhouse | No |
Power & Electrical
| Shore Power | 50 A |
|---|
Amenities
| Outdoor Kitchen | No |
|---|---|
| Theater Seating | No |
| Residential Fridge | No |
| Fireplace | No |
| Four-Season | No |
| 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 Cougar 360MBI sleep?
The 2026 Keystone Cougar 360MBI sleeps 10.
How long is the 2026 Keystone Cougar 360MBI?
The 2026 Keystone Cougar 360MBI is 39.25 feet long.
What's the dry weight of the 2026 Keystone Cougar 360MBI?
The 2026 Keystone Cougar 360MBI has a dry weight of 12,499 lbs.
Where can I buy the 2026 Keystone Cougar 360MBI?
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 Cougar 360MBI is right for you?
Tell Matchmaker your trip, your budget, and your tow vehicle. She'll narrow the catalog to the 2-4 RVs that actually fit — verified specs only, no upsells.
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