2025 Keystone Cougar 354FLS

About the 2025 Keystone Cougar 354FLS

If space is your top priority and you have a truck capable of fifth wheel duty, the 2025 2025 Keystone Cougar 354FLS from Keystone warrants serious attention. This is the kind of rig that blurs the line between camping and comfortable living.

Stretching 34.0 feet from bumper to bumper, a width of 8.5 feet and with a height of 13.0 feet, the 2025 Keystone Cougar 354FLS has a dry weight of 14,200 lbs, with a GVWR of 17,100 lbs, giving you roughly 2,900 lbs of payload room. Equipped with 4 slide-outs, the 2025 Keystone Cougar 354FLS provides noticeably more elbow room at your campsite.

Families will appreciate the generous sleeping capacity of 6, with bunk beds, convertible dinettes, and a master sleeping area all contributing to the count. The 2025 Keystone Cougar 354FLS delivers enough room for the whole family to spread out after a long day of hiking, swimming, or exploring.

The tank configuration includes 100 gallons of fresh water capacity, 45 gallons of gray water holding, a 46-gallon black water tank. On the power front, you get 200 watts of factory-installed solar, 150 amp-hours of battery storage, a 3000-watt inverter for household AC power. A 28,000 BTU air conditioner keeps things cool in summer heat, and 20,000 BTU of furnace output tackles chilly evenings. Food storage is handled by a Residential French door fridge. Outside, a 22.0-foot power awning provides welcome shade for outdoor dining and relaxation.

With a dry weight of 14,200 lbs, you will need a properly rated tow vehicle. The hitch weight comes in at 1,420 lbs, an important factor for matching to your truck. The fully loaded GVWR of 17,100 lbs is the number to match against your tow vehicle's rating.

Priced at $68,000, the 2025 Keystone Cougar 354FLS sits in the competitive mid-range where buyers get meaningful features without a luxury price tag hanging over the purchase. Large families and groups will find the 2025 Keystone Cougar 354FLS particularly appealing, with enough sleeping positions to handle a full crew without anyone being relegated to a tent or air mattress.

For 2025, the 2025 Keystone Cougar 354FLS continues to demonstrate why Keystone remains a respected name in the RV industry. It delivers a compelling combination of comfort, capability, and craftsmanship that holds up under real-world scrutiny.

The 2025 Keystone Cougar 354FLS represents the gold standard in fifth wheel design, combining innovative floor plans with construction quality that lasts for decades.

The bi-level floor plan spans 34 feet with 4 slide-out(s), creating distinct living zones for entertaining and relaxation. The raised bedroom suite features a king bed, dual nightstands, and a spacious wardrobe. The main level kitchen boasts a Residential French door refrigerator, pantry, and island with solid-surface countertops.

Premium construction includes a fully enclosed and heated underbelly, aluminum frame, and seamless TPO roof with limited lifetime warranty. At $68,000, the 2025 Keystone Cougar 354FLS delivers exceptional value for this level of quality and comfort.