Used 2019 Keystone Cougar 310RLS
Buckner, MOFun Town RVDirections
About this RV
Keystone Cougar fifth wheel 310RLS highlights: • Theater Seating • Tri-Fold Sleeper Sofa • Large Pantry • Fireplace • Kitchen Island If you are set on relaxing inside but adventuring outside then this Cougar fifth wheel 310RLS has you covered. From the tri-fold sleeper sofa, theater seating, and dinette there is plenty of room for relaxation, eating, and visiting. The dual opposing slide outs in the combined living and kitchen area plus the single slide in the bedroom provide more interior floor space to move about. The cook will appreciate the kitchen island and large pantry, and the warmth of the fireplace near by. Outside, the awning offers shade from the sun, and the unobstructed pass-through storage makes loading and unloading your larger outdoor gear a breeze. Take a look, you will be pleased you did! With any Keystone Cougar you will enjoy the Max Turn technology in the front cap when driving around town and parking the fifth wheel. You will be able to camp in any weather with the forced-air heated and enclosed underbelly with enclosed dump valves and Astrofoil insulated slide floors. If you need to stay cool or warm, these units have you covered.
Specifications as listed by the dealer
- Type
- Fifth wheel
- Condition
- Used
- Year
- 2019
- Make
- Keystone
- Model
- Cougar 310RLS
- Stock number
- 225708A
- VIN
- 4YDF31028K2500923
- Hitch weight
- 2,055 lb
- Sleeps
- 5
- Slides
- 3
- Length
- 35 ft 4 in
- Ext Height
- 12 ft 6 in
- Dry Weight
- 10,159 lbs
- Cargo Capacity
- 2,291 lbs
- Fresh Water Capacity
- 81 gals
- Grey Water Capacity
- 76 gals
- Black Water Capacity
- 38 gals
- Tire Size
- ST235/80R16E
- Furnace BTU
- 40,500 btu
- Available Beds
- Queen
- Refrigerator Size
- 12 cu ft
- Cooktop Burners
- 3
- Number of Awnings
- 1
- LP Tank Capacity
- 30
- Water Heater Capacity
- 6 gal
- Water Heater Type
- Rapid Recovery Gas/Electric
- AC BTU
- 15,000 btu
- TV Info
- LR 50" LED HD, BR 32" LED HD
- Awning Info
- 13'
- Axle Count
- 2
- Washer/Dryer Available
- Yes
- Number of LP Tanks
- 2
- Shower Type
- Shower w/Seat
- Electrical Service
- 50 amp
Features
- Laminated Side Walls with 5 Sided Aluminum Superstructure
- 3/8" Walkable Roof Decking
- Fiberglass Front Cap W/ Hitch Vision & LED Lights
- Full Size Spare Tire
- Cougar Vintage Maple Glazed Hardwood
- Cabinet Doors with Residential Hardware
- 12,000 BTU Rapid Recovery 6 Gallon Rapid Recovery Gas/Electric Water Heater
- 16" Aluminum Wheels with 10 Ply “E” Rated Tires
- Battery Disconnect Switch
- LED Interior and Exterior Lighting
- Easy Care Aluma-Tread Folding Triple Entry Step
- Friction Hinge Entry Door
- 12 Cubic ft. Refrigerator
- 1.6 Cubic ft. Microwave Upgrade
- Washer/Dryer Prep
- 21" Drop in Range w/ Piezo Ignition and Glass Stove Top Cover
- LG Solid Surface Counter Top Upgrade in Galley
- Gourmet Stainless Steel Under Mount Sink with Upgraded Chef's Faucet with Sprayer
- Upgraded Road Armour Suspension Kit
- 15,000 BTU Ducted Air Conditioner
- 35K BTU Ducted Furnace
- Dual 30LB LP Tanks
- 50 Amp Service, Pre-Wired and Braced for Ducted Bedroom Air Conditioner Option
- 1000 CFM 4 Speed Maxx Air Exhaust Fan with Rain Sensor and Wall Mounted Controls
- 50" LED High Definition TV in Living Area
- 32" LED High Definition TV in Bedroom
- 12 Volt AM/FM/CD/DVD/MP3/Bluetooth Player
- Worry Free Omni Directional Digital TV Antenna with Booster
- Exterior TV Hookup with TV Bracket
- 48" Real Feel 5500 BTU Electric Fireplace with Thermostat Control and Remote
- Furrion Backup/Observation Camera Prep
- Furrion Portable Solar Panel Prep
- 12 Volt USB Charging center
- Forced-Air Heated and Enclosed Underbelly
- Astrofoil Insulated Slide Floors
- Astrofoil Insulated Underbelly
- Enclosed Dump Valves
- Full Remote Thermostat Control Including Scheduling with Mobile App
- Available App for Android and iOS
- Multiple Users (Android phones, One user with iOS)
Questions about this 2019 Keystone Cougar 310RLS
How many 2019 Cougar 310RLSs are on RV Shift?
2, all used, at two dealers. This one is $26,995 and the other one is $31,994.
From RV Shift’s listings, updated nightlyIs it still for sale?
Fun Town RV’s website listed it for sale on November 5, 2026. RV Shift checks dealers’ websites about once a day, so ask the dealer to be sure.
What does it take to tow it?
RV Finder’s estimate: it needs a vehicle rated to tow about 11,400 lb, with a fifth-wheel hitch. That is its 10,159 lb dry weight plus 1,200 lb for water and gear, rounded up to the next 100 lb. RV Finder shows whether it is within your vehicle’s published rating, from the maker’s own towing guide, and checks tongue weight and payload too. Confirm your numbers in your owner’s manual and on the sticker in the driver’s door jamb. Check it in RV Finder
How do I ask the dealer about it?
Use the Check availability form on this page. Your message comes to RV Shift and we pass it to Fun Town RV. You can also call Fun Town RV at (833) 386-8696.
Listing and photos: Fun Town RV. Details come from the dealership and can change; confirm them before you buy.