2026 Keystone Cougar 355FBS
Fifth Wheel · Premium Fifth Wheel · 39.25 ft · sleeps 6
The 2026 Keystone Cougar 355FBS is a fifth wheel (premium fifth wheel). At sleeps 6, 39.25 ft long, 11,802 lbs dry, it's positioned for buyers comfortable towing with the right tow vehicle.
Floor plan
Photos of the 2026 Keystone Cougar 355FBS
Walkthrough video
Video courtesy of Cookeville RV and Marine on YouTube.
Full specifications
Dimensions
| Length | 39.25 ft |
|---|
Weights
| Dry Weight | 11,802 lbs |
|---|
Living
| Sleeps | 6 |
|---|---|
| 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 355FBS sleep?
The 2026 Keystone Cougar 355FBS sleeps 6.
How long is the 2026 Keystone Cougar 355FBS?
The 2026 Keystone Cougar 355FBS is 39.25 feet long.
What's the dry weight of the 2026 Keystone Cougar 355FBS?
The 2026 Keystone Cougar 355FBS has a dry weight of 11,802 lbs.
Where can I buy the 2026 Keystone Cougar 355FBS?
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 355FBS 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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