Pet friendly
Bring your pet along for the trip
2015 Keystone Cougar
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
2 Large closets
Plenty of storage
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
Optional 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.
Sleeps
6# of slide outs
4Weight
10000 lbsLength(ft)
37 ftType of RV
Fifth WheelAccommodations
1 bed
Queen
1 pullout sofa
Double
What this RV offers
Pet friendly
Awning
Camping chairs
Inverter
Leveling jacks
Aux input
CD player
Radio
TV & DVD
USB input
Refrigerator
Stove range
Microwave
Kitchen sink
Dining table
Freezer
Oven
Inside shower
Outside shower
Toilet
Air conditioner
Heater
Family friendly
Nearby KOA campgroundsView campgrounds
Rates & discounts
Midweek
$158/Night10% off
Weekly
$158/Night10% off
Monthly
$140/Night20% off
Security Deposit
$1,000Fully refundable
RV rules
Flexible pickup time • Flexible drop-off time
RV must be returned clean and tidy
Towing experience required
No smoking
Check availability
Select your trip dates


