New 2026 Keystone RV Cougar 355FBS
+143 
- Sale Price: $79,900
- Retail Price: $118,885
- Save: $38,985
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39ft long
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11,920 lbs
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Sleeps 4
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3 slides
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Front BathRear Living Area
355FBS Floorplan
Specifications
| Sleeps | 4 | Slides | 3 |
| Length | 39 ft 3 in | Ext Width | 8 ft |
| Ext Height | 13 ft 4 in | Interior Color | Umber Luxe |
| Exterior Color | Phantom Gray Midnight Custom Paint | Hitch Weight | 2000 lbs |
| GVWR | 13900 lbs | Dry Weight | 11920 lbs |
| Cargo Capacity | 1920 lbs | Fresh Water Capacity | 75 gals |
| Grey Water Capacity | 76 gals | Black Water Capacity | 76 gals |
| Tire Size | ST235/80R16E | Furnace BTU | 30000 btu |
| Available Beds | King Size and Tri-Fold Sofa | Refrigerator Type | 12V |
| Refrigerator Size | 16 cu ft | Cooktop Burners | 3 |
| Number of Awnings | 2 | LP Tank Capacity | 30 lbs |
| Water Heater Type | Tankless On Demand | AC BTU | 30000 btu |
| TV Info | LR LED HDTV | Awning Info | 10' & 16' Electric with Gas Strut Arm with Dotless Neon Style LED Lighting |
| Axle Count | 2 | Washer/Dryer Available | Yes |
| Number of LP Tanks | 2 | Shower Type | Shower w/Seat |
| Electrical Service | 50 amp | Solar Wattage | 440 watts |
| VIN | 4YDFCGT22T2504966 |
Description
Keystone Cougar fifth wheel 355FBS highlights:
- Full and Half Bath
- Master Suite
- Kitchen Island
- Fireplace
- 12V Ceiling Fan
- Two Power Awnings
You will be so excited to take this Cougar fifth wheel out for the first time! Because of its secluded and fully stocked master suite at the front, this unit is perfect for a couple who wants to see the country or visit family. The master bathroom has a wonderful walk-in closet that has shoe storage, drawers, and preparations for a washer/dryer. There is also under-bed storage in the bedroom portion, and the queen bed slide gives you a little more space to get to the dresser and linen closet. The half bathroom is located out in the main living area so that your friends will have a place to go when they visit. Opposing slides keep this living area open for lounging comfortably on the tri-fold sleeper sofa and theater seating, and you can get everyone together for a board game at the booth dinette with storage drawers. There is also a pivoting entertainment door with a hidden pantry and cordless vacuum prep behind; how convenient!
Spend more time having fun and less time worrying about your RV with the Keystone Cougar fifth wheel! These units have all that you will need for excellent vacations. The interior comes hardwood cabinet doors, solid surface kitchen countertops, an Oxygenics shower head and hose, plus a Vent-All window system. You will also appreciate the 12V charging stations throughout, the dual zone Bluetooth audio system, and the on-demand water heater for added comfort. The exterior is also fully outfitted with a convenience center, MaxTurn technology, Lippert axles with anti-lock braking system, and a Curt Road Armor shock absorbing equalizer for smooth towing. Each model is available with the optional Hero Edition. By choosing this edition, you can help support our nation's heros and their families by contributing to the Wounded Warrior Project. This optional package features an industry exclusive full-body paint matte finish, frameless windows, a glass entry door, blackout rims, and green LED exterior accent lighting; see dealer for more details!
Features
Standard Features (2026)
Professional Grade Camping Package
- 75 Gallon Fresh Water Tank
- Washer/Dryer Prep (N/A 364BHL)
- Hidden Dresser Storage
- Extra-Wide Entry Step with Composite Step Treads
- Entry Door Privacy Shade
- Vent-All Window System
- On-Demand Water Heater
- 5-Sided Aluminum Superstructure
- AlphaPly roof membrane with Limited Lifetime Warranty
- Fully Walkable Roof and Slideout Roof
- Dual 30lb LP Tanks
- LP Quick Disconnect for Grilling - (All Models)
- Power Watchdog™ Safeview Smart RV Power Inlet: 50 Amp
- Washable PVC Sewer Hose Storage
- Dimmable Lights in Main Slide, Living Room & Bedroom
- Heat & Massage Theater Seats
- 50” High-Definition Smart TV
- Dual Zone Bluetooth Audio System
- Winegard 360 Plus w/ WIFI Prep, Satellite Pass-through
- 12V Charging Stations Throughout
- Power Vent w/ Rain Sensor in Kitchen
- 30” Residential Microwave Vents to Exterior
- Furrion 21” Oven w/ 3 Burner Cooktop & Oven Drawer
- Solid Surface Kitchen Countertops
- Pull-out Trash Cans w/Paper Towel Holder (Select Models)
- Exterior Awning Switch in Pass-Thru
- Water Pump Easy Access w/ Hinged Door
- Hardwood Cabinet Doors w/ Soft Close Hidden Hinges
- Key-Alike Lock System
- Lighted Termination Points
- MORryde® Telescoping Safe-T-Rail Entry Handle
- Booth Dinette w/LED Lights and Drawers
- Slide Topper Prep
- Oxygenics® Shower Head and Hose
- LED Closet Rod Lighting (Select Models)
Towing w/Confidence Package with ABS
- MaxTurn™ Technology
- Lippert™ Axles w/ Anti-Lock Braking System
- Bronze Bushings, Heavy Duty 1/2 Shackle Plates & Wet Bolts
- Rainier H Rated 16 Ply Tires w/ 8 Year Warranty
- 16” 6 Lug Wheels
- Tire Linc® TPMS Prep & H Rated Full Size Spare Tire
- Curt Helux™ Series Coil Spring Pin Box
- Curt Road Armor™ Shock Absorbing Equalizer
- Reverse Warning Lights in Taillight
- 2” Accessory Hitch (Select Models)
- 2” Towing Hitch with 4-way plug (Select Models)
- Rear Observation Camera Prep
Cougar Innovation Package
- Water Management Center Providing Individual Shut-off Valves
- HIGH GLOSS HyperCore® Composite Sidewalls
- Color Coded & Unified Wiring System
- Giggy Box-Industry’s 1st Organized 12 Volt Wiring Box, Patented
- KeyTV™ Multisource Signal Controller, Patented
- Spacesaver Fifth Wheel Chassis
- Painted Front Cap w/ Automotive Clear Coat
- Automotive Windshield - (Select Models)
- Tank Guardian High Tensile Strength Strap System
- Double Welded Aluminum Frame Construction
- Tuf-Lok™ Thermoplastic Air Conditioning Duct Joiners
- Decorative Snap-In Ceiling & Crown Molding Treatments
- Power Converter with Auto-Detect Battery Recognition
Climate Guard Protection Package
- 18k Furrion High Efficiency Chill® Cube A/C
- 15k Ducted Bedroom A/C
- 3rd A/C Prep & 30k BTU Furnace
- Astro-Foil Insulated Underbelly
- 12Volt-Heat Pads on Holding Tanks
- Forced-Air Heated & Enclosed Underbelly
- Heated Basement Storage & Convenience Center
- Reflective Foil in Front Cap, Slide Floors
- Dual Attic Vents
- PEX Plumbing Lines
- Insulated Gooseneck & Bulkhead Divider
- Foil Backed, Foam Core A/C duct with Tuf-Lok™ Joiners
Options
- Full Body Paint Packages Available: Midnight Edition-Black Onyx or Phantom Gray, Hero Edition, 1776 Edition
See us for a complete list of features and available options!
All standard features and specifications are subject to change.
All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.
Due to the current environment, our features and options are subject to change due to material availability.
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PhyllisWe wish to thank all of you
Good morning, Ryan,Joe and I wish to thank you folks for the kind and courteous way your dealership treated us when we recently purchased our new Forest River Fifth Wheel. We appreciated the time you took to show us the many Fifth Wheels in the lot. We LOVE OUR NEW FIFTH WHEEL! Our first trip will be -
KellyI would highly recommend for any service needs
I have had my camper worked on at Campsite RV three different times. I have found Kelly and his staff to be fair and honest. Each time they explained the options that were available to me. I have not felt like a number. I would highly recommend for any service needs.
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John from Atmore, ALKeystone Cougar 290 RLS
We purchased a 2027 Keystone Cougar 290 RLS. Marks walk through with us, was very informative and appreciated. He showed us all the features of our new camper. We really liked the quick work of the service department when installing our desired items on our new camper. When we were transferring our
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