New and used 354FLS Cougar by Keystone RV for sale

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New 2025 Keystone RV Cougar 354FLS image
New 2025 Keystone RV Cougar 354FLS
  • Call for price
  • OLATHE RV AVAILABLE TO ORDER
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Keystone Cougar fifth wheel 354FLS highlights:

  • Separate Living Area
  • Rear Bedroom
  • Tri-Fold Sleeper Sofas
  • LCI SolidStep Entry
  • Patent-Pending Windshield
  • Pull-Out Storage Tray

 

This Cougar fifth wheel will make you feel like you're on top of the world! It offers you a living space that truly feels like home because of its residential layout. The front separate living room has all of your favorite features, like a fireplace, LED HDTV, two 68" tri-fold sleeper sofas, and theater seating. The kitchen is centrally located and sectioned off from the rest of the interior so that you don't have to try to cook on top of someone who is lounging in front of the TV. You can add an optional free-standing dinette to the slide out across from the kitchen for a place to sit down and eat those delicious meals, and the two entry doors give you access to the front or back portion of this unit. The rear private bedroom has a queen-size bed with a shoe garage underneath, and there is a wardrobe slide that can be used for other clothing items. 

 

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 with 5/8" one-piece DynaSpan® flooring, tall slide outs for added comfort and head room, night roller shades throughout, and residential, raised-panel hardwood cabinet doors and drawers. You will also enjoy decorative crown molding, a 5,500 BTU electric fireplace with thermostat control and remote, and a Max Air exhaust fan with rain sensor. The exterior is also fully outfitted with a convenience center, friction-hinge entry door, electric four-point auto leveling system, and LCI® SolidStep® on the main entry. There is a full pass-through storage with slam-latch baggage doors, an industry-best 80-gallon fresh tank capacity, a 2" accessory hitch with 300-LB storage capacity, and an outside shower. 

New 2023 Keystone RV Cougar 354FLS image
New 2023 Keystone RV Cougar 354FLS
  • $76,996.00
  • CENTURY RV
  • Longmont, CO
View Details

Keystone Cougar fifth wheel 354FLS highlights:

  • Separate Living Area
  • Rear Bedroom
  • Tri-Fold Sleeper Sofas
  • LCI SolidStep Entry
  • Patent-Pending Windshield
  • Pull-Out Storage Tray

 

This Cougar fifth wheel will make you feel like you're on top of the world! It offers you a living space that truly feels like home because of its residential layout. The front separate living room has all of your favorite features, like a fireplace, LED HDTV, two 68" tri-fold sleeper sofas, and theater seating. The kitchen is centrally located and sectioned off from the rest of the interior so that you don't have to try to cook on top of someone who is lounging in front of the TV. You can add an optional free-standing dinette to the slide out across from the kitchen for a place to sit down and eat those delicious meals, and the two entry doors give you access to the front or back portion of this unit. The rear private bedroom has a queen-size bed with a shoe garage underneath, and there is a wardrobe slide that can be used for other clothing items. 

 

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 with 5/8" one-piece DynaSpan® flooring, tall slide outs for added comfort and head room, night roller shades throughout, and residential, raised-panel hardwood cabinet doors and drawers. You will also enjoy decorative crown molding, a 5,500 BTU electric fireplace with thermostat control and remote, and a Max Air exhaust fan with rain sensor. The exterior is also fully outfitted with a convenience center, friction-hinge entry door, electric four-point auto leveling system, and LCI® SolidStep® on the main entry. There is a full pass-through storage with slam-latch baggage doors, an industry-best 80-gallon fresh tank capacity, a 2" accessory hitch with 300-LB storage capacity, and an outside shower. 

New 2023 Keystone RV Cougar 354FLS image
New 2023 Keystone RV Cougar 354FLS
  • $67,995.00
  • KLAMATH FALLS, OR
  • Klamath Falls, OR
View Details

Keystone Cougar fifth wheel 354FLS highlights:

  • Separate Living Area
  • Rear Bedroom
  • Tri-Fold Sleeper Sofas
  • LCI SolidStep Entry
  • Patent-Pending Windshield
  • Pull-Out Storage Tray

 

This Cougar fifth wheel will make you feel like you're on top of the world! It offers you a living space that truly feels like home because of its residential layout. The front separate living room has all of your favorite features, like a fireplace, LED HDTV, two 68" tri-fold sleeper sofas, and theater seating. The kitchen is centrally located and sectioned off from the rest of the interior so that you don't have to try to cook on top of someone who is lounging in front of the TV. You can add an optional free-standing dinette to the slide out across from the kitchen for a place to sit down and eat those delicious meals, and the two entry doors give you access to the front or back portion of this unit. The rear private bedroom has a queen-size bed with a shoe garage underneath, and there is a wardrobe slide that can be used for other clothing items. 

 

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 with 5/8" one-piece DynaSpan® flooring, tall slide outs for added comfort and head room, night roller shades throughout, and residential, raised-panel hardwood cabinet doors and drawers. You will also enjoy decorative crown molding, a 5,500 BTU electric fireplace with thermostat control and remote, and a Max Air exhaust fan with rain sensor. The exterior is also fully outfitted with a convenience center, friction-hinge entry door, electric four-point auto leveling system, and LCI® SolidStep® on the main entry. There is a full pass-through storage with slam-latch baggage doors, an industry-best 80-gallon fresh tank capacity, a 2" accessory hitch with 300-LB storage capacity, and an outside shower. 

Used 2021 Keystone RV Cougar 354FLS image
Used 2021 Keystone RV Cougar 354FLS
  • $39,999.00
  • FRETZ RV OF SOUDERTON, PA
  • Souderton, PA
View Details

Keystone Cougar fifth wheel 354FLS highlights:

  • Separate Living Area
  • Rear Bedroom
  • Tri-Fold Sleeper Sofas
  • MORRyde Solid Step
  • Patent-Pending Windshield
  • Pull-Out Storage Tray

 

Explore the used 2021 Keystone RV Cougar 354FLS, a spacious fifth wheel perfect for family adventures. Featuring a stylish front living area, modern kitchen, and ample storage, this RV combines comfort and functionality. With its premium finishes and outdoor amenities, it’s ideal for both weekend getaways and extended trips.

 

Man cave, TV room, family space, and/or extra bedroom are a few ways you can use the front living area with a pop-up TV that has a fireplace below.  Everyone will have seating with two tri-fold sleeper sofa slides and two theater seats, and/or some might decide to play games at the legless dinette table or choose the free standing dinette option in the separate kitchen.  The dual entries offer a smooth flow of traffic when the whole family is with you, and the spacious kitchen has lots of counter space, a pull-out pantry, and all the kitchen amenities needed to keep everyone fed.  Access the full bathroom from the hallway to get cleaned up, and relax on your own queen bed in the rear bedroom whenever needed.  You will find a closet prepped for a washer/dryer option, shoe garage underneath the bed, and three wardrobes for plenty of clothing storage.

 

With any Keystone Cougar fifth wheel and toy hauler you will experience the MaxTurn technology which enables you to maneuver easily into the campsite, and the electric four-point auto leveling system makes it easy to set up too! The heavy duty axles with never-adjust brakes and Road Armor™ shock absorbing equalizer makes for a smooth trip. With a Climate Guard protection package and 12V electric heat pads on all holding tanks, you can camp anytime of the year. The 5/8" one-piece DynaSpan® flooring is easy to clean so live out your dreams, choose your favorite Cougar today!

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