2015 Keystone Cougar 337FLS — Overview Type: Fifth wheel RV Floorplan: Front Living Room (FLS) Length: ~37 ft 8 in Sleeps: Up to 6 people Slides: 4 slide-outs This model is known for its residential-style layout, especially the separate front living room, which makes it feel more like a small apartment than a camper. Floorplan & Layout Front Living Room Two opposing sofas + theater seating Entertainment center (TV + optional fireplace) Large front windows for panoramic views Mid Kitchen Center kitchen with table & chairs (not a booth) Solid surface-style counters 3-burner stove, oven, microwave, mid-size fridge Rear Bedroom Private master bedroom with queen bed Center dresser drawer with large closets on each side Plenty of storage underneath bed Bathroom (center) Full bathroom with: Shower (glass/plastic door) Porcelain toilet Sink + medicine cabinet The big selling point is the separation of living spaces—front lounge, middle kitchen, rear bedroom. Key Specs Dry weight: ~9,995 lbs GVWR: ~12,385 lbs Hitch weight: ~1,985 lbs Fresh water: 60 gal Gray water: 76 gal Black tank: 38 gal Typically requires a ¾-ton or 1-ton truck to tow safely. Standard Features Exterior Aluminum frame + fiberglass sidewalls Power awning 4 power slide-outs Exterior shower Pass-through storage Dual propane tanks Interior Comfort Dual sofas + seating area Entertainment system + DVD/CD Fireplace Carpet + vinyl flooring mix Day/night shades Kitchen 3-burner stove + oven Microwave Mid-size fridge (gas/electric) Double sink with covers Climate & Utilities Air conditioning Furnace + 6-gallon water heater Prewired for cable/satellite Heated/insulated for colder weather use Safety Smoke detector CO detector Propane leak detector Notable Highlights Front living room layout (rare and very desirable) Four slide-outs = very spacious interior Residential feel with separate rooms Good storage for long trips or full-time living Things to Be Aware Of Heavier than average → needs a capable tow vehicle Bottom Line The 2015 Cougar 337FLS is a great choice if you want: A spacious, home-like RV Separate living/bedroom areas Comfort for longer stays or even full-time use It’s especially popular with people who value living room space and comfort over bunkhouse layouts.