Experience residential comfort, family-friendly versatility, and premium Keystone engineering in the NEW 2026 Keystone Cougar 350LLK. This spacious luxury fifth wheel is designed for families and travelers who want extra sleeping space, privacy, storage, and the comforts of home while exploring Wyoming and beyond.
The Keystone Cougar 350LLK stands out with its unique loft-style family floorplan, providing flexible space for kids, guests, storage, or extended trips. Combine that with a residential-style kitchen, comfortable living area, private bedroom, and Cougar's four-season camping technology, and you have a fifth wheel built for everything from weekend escapes to longer adventures.
Shop the 2026 Keystone Cougar 350LLK for sale at Sonny's RVs in Evansville, Wyoming, conveniently located near Casper. RV financing options are available for qualified buyers, and trade-ins are welcome.
The 2026 Cougar 350LLK is an excellent choice for RV buyers who need more than a traditional couples fifth wheel. Its innovative layout provides additional loft space and flexible sleeping accommodations, giving families more room without sacrificing the residential feel of the main living area.
Inside, the Cougar delivers the upscale features buyers expect from a premium fifth wheel. A spacious kitchen provides plenty of room for cooking and storing groceries, while the living area creates a comfortable place for family dinners, movie nights, entertaining guests, or relaxing after a day outdoors.
The additional sleeping and living spaces make the 350LLK especially appealing to families with children, grandparents traveling with grandchildren, extended-stay campers, and RVers who regularly bring guests.
One of the biggest advantages of the Keystone Cougar 350LLK is its ability to provide the comfort of a larger luxury fifth wheel while remaining focused on practical family living.
The spacious interior provides dedicated areas for sleeping, cooking, dining, relaxing, and storage, helping everyone have their own space during longer trips. Premium furnishings, modern cabinetry, residential-style appliances, and an entertainment area create a comfortable home base wherever you decide to camp.
For shoppers comparing a fifth wheel with a loft, family fifth wheel, luxury fifth wheel with extra sleeping space, or an RV for extended travel, the Cougar 350LLK deserves a closer look.
The 2026 Keystone Cougar 350LLK is ready for everything from family weekends around Casper to longer trips through Yellowstone National Park, Grand Teton National Park, the Bighorn Mountains, and destinations throughout Wyoming and the Rocky Mountain West.
Cougar's Climate Guard™ protection and SolarFlex™ technology add capability for RVers who want to extend their camping season and enjoy more freedom on the road. Whether you're planning summer vacations, hunting-season camping, extended road trips, or seasonal stays, the 350LLK provides the space and versatility to make every adventure more comfortable.
The 2026 Keystone Cougar 350LLK is an excellent fit for families, couples who want extra space, travelers with children or grandchildren, extended-stay campers, national park travelers, seasonal campers, and RVers looking for a fifth wheel with a loft. Its combination of additional sleeping space, residential amenities, storage, and four-season capability makes it an attractive option for travelers who want more flexibility from their RV.
The Keystone Cougar lineup has become a popular choice among fifth-wheel buyers by combining premium amenities with innovative RV technology. Features available throughout the Cougar family include Climate Guard™ protection, SolarFlex™ solar technology, HyperDeck™ flooring, modern appliances, tankless hot water, advanced climate systems, and intelligent storage solutions.
The result is a fifth wheel designed to provide residential comfort, dependable construction, and adventure-ready capability for today's RV lifestyle.
Ready to make the 2026 Keystone Cougar 350LLK your next RV? At Sonny's RVs, our finance team works with qualified buyers to explore competitive RV loans and fifth-wheel financing options.
Whether you're purchasing your first fifth wheel, upgrading to a larger family RV, or trading in your current camper, Sonny's RVs can help you explore available financing and payment options.
Trade-ins are welcome.
Visit Sonny's RVs in Evansville, Wyoming, near Casper, to see the NEW 2026 Keystone Cougar 350LLK and browse our selection of Keystone Cougar fifth wheels, travel trailers, toy haulers, and new and used RVs.
We proudly serve RV shoppers throughout Casper, Evansville, Douglas, Gillette, Cheyenne, Sheridan, Laramie, Rock Springs, Cody, and communities across Wyoming.
If you're searching for a 2026 Keystone Cougar 350LLK for sale in Wyoming, fifth wheel with a loft, family fifth wheel near Casper, luxury Keystone Cougar, or RV financing in Wyoming, check out the Cougar 350LLK at Sonny's RVs.
Information and features are based on manufacturer data and may vary from the actual unit. Sonny’s RVs is not responsible for errors or omissions. Prices and availability may change without notice. Buyers must verify all details, features, and conditions with a Sonny’s RVs sales representative before purchase.
| Stock # | N26-9097 |
| Location | |
| Year | 2026 |
| Make | KEYSTONE |
| Model | COUGAR |
| Trim | 350LLK |
| Condition | NEW |
| Status | In Stock |
Experience residential comfort, family-friendly versatility, and premium Keystone engineering in the NEW 2026 Keystone Cougar 350LLK. This spacious luxury fifth wheel is designed for families and travelers who want extra sleeping space, privacy, storage, and the comforts of home while exploring Wyoming and beyond.
The Keystone Cougar 350LLK stands out with its unique loft-style family floorplan, providing flexible space for kids, guests, storage, or extended trips. Combine that with a residential-style kitchen, comfortable living area, private bedroom, and Cougar's four-season camping technology, and you have a fifth wheel built for everything from weekend escapes to longer adventures.
Shop the 2026 Keystone Cougar 350LLK for sale at Sonny's RVs in Evansville, Wyoming, conveniently located near Casper. RV financing options are available for qualified buyers, and trade-ins are welcome.
The 2026 Cougar 350LLK is an excellent choice for RV buyers who need more than a traditional couples fifth wheel. Its innovative layout provides additional loft space and flexible sleeping accommodations, giving families more room without sacrificing the residential feel of the main living area.
Inside, the Cougar delivers the upscale features buyers expect from a premium fifth wheel. A spacious kitchen provides plenty of room for cooking and storing groceries, while the living area creates a comfortable place for family dinners, movie nights, entertaining guests, or relaxing after a day outdoors.
The additional sleeping and living spaces make the 350LLK especially appealing to families with children, grandparents traveling with grandchildren, extended-stay campers, and RVers who regularly bring guests.
One of the biggest advantages of the Keystone Cougar 350LLK is its ability to provide the comfort of a larger luxury fifth wheel while remaining focused on practical family living.
The spacious interior provides dedicated areas for sleeping, cooking, dining, relaxing, and storage, helping everyone have their own space during longer trips. Premium furnishings, modern cabinetry, residential-style appliances, and an entertainment area create a comfortable home base wherever you decide to camp.
For shoppers comparing a fifth wheel with a loft, family fifth wheel, luxury fifth wheel with extra sleeping space, or an RV for extended travel, the Cougar 350LLK deserves a closer look.
The 2026 Keystone Cougar 350LLK is ready for everything from family weekends around Casper to longer trips through Yellowstone National Park, Grand Teton National Park, the Bighorn Mountains, and destinations throughout Wyoming and the Rocky Mountain West.
Cougar's Climate Guard™ protection and SolarFlex™ technology add capability for RVers who want to extend their camping season and enjoy more freedom on the road. Whether you're planning summer vacations, hunting-season camping, extended road trips, or seasonal stays, the 350LLK provides the space and versatility to make every adventure more comfortable.
The 2026 Keystone Cougar 350LLK is an excellent fit for families, couples who want extra space, travelers with children or grandchildren, extended-stay campers, national park travelers, seasonal campers, and RVers looking for a fifth wheel with a loft. Its combination of additional sleeping space, residential amenities, storage, and four-season capability makes it an attractive option for travelers who want more flexibility from their RV.
The Keystone Cougar lineup has become a popular choice among fifth-wheel buyers by combining premium amenities with innovative RV technology. Features available throughout the Cougar family include Climate Guard™ protection, SolarFlex™ solar technology, HyperDeck™ flooring, modern appliances, tankless hot water, advanced climate systems, and intelligent storage solutions.
The result is a fifth wheel designed to provide residential comfort, dependable construction, and adventure-ready capability for today's RV lifestyle.
Ready to make the 2026 Keystone Cougar 350LLK your next RV? At Sonny's RVs, our finance team works with qualified buyers to explore competitive RV loans and fifth-wheel financing options.
Whether you're purchasing your first fifth wheel, upgrading to a larger family RV, or trading in your current camper, Sonny's RVs can help you explore available financing and payment options.
Trade-ins are welcome.
Visit Sonny's RVs in Evansville, Wyoming, near Casper, to see the NEW 2026 Keystone Cougar 350LLK and browse our selection of Keystone Cougar fifth wheels, travel trailers, toy haulers, and new and used RVs.
We proudly serve RV shoppers throughout Casper, Evansville, Douglas, Gillette, Cheyenne, Sheridan, Laramie, Rock Springs, Cody, and communities across Wyoming.
If you're searching for a 2026 Keystone Cougar 350LLK for sale in Wyoming, fifth wheel with a loft, family fifth wheel near Casper, luxury Keystone Cougar, or RV financing in Wyoming, check out the Cougar 350LLK at Sonny's RVs.
| General | |
|---|---|
| Class | Fifth Wheel |
| Secondary Category | Rear Kitchen |
| Other Specifications |
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| Hot Deals |
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