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Keystone RV Cougar Toy Hauler Fifth Wheel RVs For Sale

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Committed to offering you innovation, quality, style, and affordability, Keystone RV is proud to showcase their best-selling brand: the Cougar fifth wheels and toy hauler! Designed to grow with your family, the Cougar will be a companion that will stay with you for many years and adventures to come. 


Because the Cougar has been designed to accommodate all stages of life, you'll find that each and every one of your camping experiences will be the very best possible. From the exclusive 90-degree Maxturn technology and iN-Command Pro Series master control panel to the 81-gallon fresh water tank and 12 cubic foot refrigerator, every feature that has been included on the Cougar is both helpful and accommodating.


Take control of your adventures with these force-of-nature Cougar fifth wheels and toy hauler from Keystone RV!

  • Cougar 353SRX

    Cougar 353SRX Floorplan Image

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    Keystone Cougar toy hauler 353SRX highlights: 10' Separate Garage Full and Half ... more about Cougar 353SRX

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    Sleeps 6
    Slides 3
    Interior Color Twig, Storm
    Fresh Water Capacity 81 gals
    Tire Size 16"
    Furnace BTU 35000 btu
    Available Beds Queen
    Refrigerator Size 12 cu ft
    Number of Awnings 2
    Garage Size 10 ft
    LP Tank Capacity 30 lbs
    Water Heater Capacity 6 gal
    Water Heater Type Gas/Electric Rapid Recovery
    AC BTU 15000 btu
    TV Info LR 50" LED HDTV, BR 32" LED HDTV
    Awning Info 9' and 11' Power
    Axle Count 2
    Washer/Dryer Available Yes
    Number of LP Tanks 2
    Shower Type Radius
    Electrical Service 50 amp

    Similar Floorplans

Cougar Features:

Standard Features (2020)


Camping In Style Package

  • White high-gloss laminated side walls with 5-sided aluminum superstructure
  • 3/8'' walkable roof decking
  • Painted fiberglass front cap with 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 gas/electric water heater
  • Aluminum wheels
  • Battery disconnect switch
  • LED interior and exterior lighting
  • MORryde® Step Above™ on main entry
  • Friction-hinge entry door with euro latch

Cougar Anniversary Package

  • 12 cu. ft. Refrigerator
  • 1.6 cu. ft. Microwave upgrade
  • Washer/dryer prep (N/A 364BHL)
  • 21'' Furrion range with Piezo ignition and glass stove top cover
  • LG solid-surface counter top upgrade
  • Gourmet stainless steel under-mount sink with upgraded chef's faucet with sprayer
  • 2" Accessory hitch with 300-lb. capacity
  • Upgraded Road Armour Uqalizer and Pin Box

Cougar Comfort Package

  • 15,000 BTU ducted air conditioner
  • 50 AMP service, pre-wired and braced for ducted bedroom air conditioner option
  • 35K BTU ducted furnace
  • Dual 30 lb. LP tanks

Deluxe Entertainment/Technology Package

  • 50'' LED high-definition TV in living area
  • 32'' LED high-definition TV in bedroom (364BHL 32" in bunkroom)
  • 12 Volt AM/FM/CD/DVD/MP3/Bluetooth player with HDMI arc control
  • Worry-free omni-directional digital TV antenna and Wi-Fi prep
  • Exterior TV hookup with TV bracket
  • 5,500 BTU electric fireplace with thermostat control and remote
  • Furrion backup/observation camera prep
  • Furrion portable solar panel prep
  • 12 Volt USB charging centers

Climate Guard Protection Package

  • Astro-foil insulated slide floors
  • Astro-foil insulated underbelly
  • Reflective foil-insulated front cap
  • Forced-air heated and enclosed underbelly
  • 12V heat pads on holding tanks
  • Heated/enclosed dump valves
  • Heated/enclosed convenience center
  • Dual attic vents

Smart Camping

  • Furrion 4G LTE and Wi-Fi prep
  • iN-Command® Pro Series Gen. 3 with Global Connect


  • 2nd power awning (mandatory 315RLS, 361RLW, 368MBI, 369BHS only, N/A on all other models)
  • 13.5 BTU A/C (bedroom ducted) with thermostat
  • 70'' x 80'' king bed (N/A 364BHL)
  • Free-standing dinette & chairs
  • Dual-pane frameless window
  • Theater seat in place of tri- fold (364BHL and 369BHS only)
  • CSA construction and seal

See us for a complete list of features and available options!

All standard features and specifications are subject to change.


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At Keystone we do things differently, and have since we first opened our doors in 1996. This different way means focusing on you, our customer, and building RVs that are much more than great floor plans and prices. It starts with innovative products that are built tough, and doesn’t stop there. It’s our commitment to provide a better ownership experience. We understand that when you put your hard earned money down, you expect your RV to deliver as promised. That’s why “Building Adventures for the Long Haul” is more than just a slogan here at Keystone; it is our number one mission each and every day. It’s the reason today we are honored to say we have nearly one million Keystone owners out on the open road who we consider family.