New 2026 Keystone RV Alpine Avalanche Edition 366LS Fifth Wheel
2026 Keystone Alpine Avalanche Edition 366LS
This 2026 Keystone Alpine Avalanche Edition 366LS is a luxury rear kitchen fifth wheel with five slides, a king bed, large L-shaped sofa, free-standing dinette, desk area, and strong extended-stay storage. It is a strong fit for buyers who want a high-end fifth wheel with a residential living space, large kitchen, comfortable bedroom, and room to stay longer without feeling crowded.
The rear kitchen is one of the main advantages of this floorplan. It gives you generous counter space, a kitchen island, pantry storage, and an 18 cu. ft. residential refrigerator. This layout works well for buyers who cook regularly while camping and want the kitchen to feel more like part of the home instead of a small RV workspace.
The main living area is built for comfort. The large L-shaped sofa with recliners gives everyone a place to relax, watch TV, or spend time inside during bad weather. The hide-a-bed sofa sleeper adds guest sleeping space when needed, while the free-standing dinette gives you a dedicated place for meals, games, or morning coffee.
The desk with a chair is another useful feature, especially for buyers who work from the camper, plan longer trips, or want a dedicated spot for a laptop, paperwork, or trip planning. That small workspace adds flexibility without taking away from the main living area.
Up front, the master bedroom includes a king bed slide-out, master closet, dresser, and stackable washer/dryer prep. The dual-entry bath includes a shower with a seat, giving the owner’s area a more comfortable and practical setup for regular use.
Key features include five slides, rear kitchen, kitchen island, pantry, 18 cu. ft. residential refrigerator, large L-shaped sofa with recliners, hide-a-bed sofa sleeper, free-standing dinette, desk with chair, front master bedroom, king bed slide-out, master closet, dresser, stackable washer/dryer prep, dual-entry bath, shower with a seat, wide-body construction, Polar Pack All Season Protection, heated and enclosed underbelly, Astro foil reflective layer, in-floor heating ducts, Tru-Fit slide construction, KeyTV, hardwood slide fascia, wood accents, designer upholstered window valances, and custom wood window frames.
For buyers looking for a luxury fifth wheel with a large living area, strong kitchen space, dedicated workspace, and a comfortable master bedroom, this 2026 Keystone Alpine Avalanche Edition 366LS gives you the room and features needed for extended trips, seasonal camping, or longer stays.
This unit is available to order through Barton Lake RV and is not currently on the lot. Photos may be stock photos. Availability, colors, equipment, and final pricing may vary.
A lot of fun and friendly people work at this dealership and they took the stress out of the purchasing process. Our sales person was Kasey and my wife and I both loved her. She answered all our questions and was very straightforward about everything. I was also impressed with the candor of the two technicians they provided during the delivery process. They explained the camper to us and gave us a - Daniel
You Save: $26,795
Sale Price: $84,995
Stock# SO-38
| Sleeps | 6 |
| Slides | 5 |
| Length | 40 ft 10 in |
| Ext Width | 8 ft 4 in |
| Ext Height | 13 ft 4 in |
| Hitch Weight | 2365 lbs |
| Dry Weight | 14027 lbs |
| Cargo Capacity | 2173 lbs |
| Fresh Water Capacity | 75 gals |
| Grey Water Capacity | 83 gals |
| Black Water Capacity | 49 gals |
| Tire Size | ST235/80R16G |
| Furnace BTU | 35000 btu |
| Available Beds | King |
| Refrigerator Type | Residential |
| Refrigerator Size | 18 cu ft |
| Cooktop Burners | 3 |
| Number of Awnings | 2 |
| Axle Weight | 7000 lbs |
| LP Tank Capacity | 30 lbs. |
| Water Heater Type | On Demand |
| AC BTU | 30000 btu |
| TV Info | LR 65" TV |
| Awning Info | 9' and 16' Power Carefree w/Adjustable Arms |
| Axle Count | 2 |
| Washer/Dryer Available | Yes |
| Number of LP Tanks | 2 |
| Shower Type | Shower w/Seat |
| Electrical Service | 50 amp |
Alpine Avalanche Edition 366LS Reviews
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Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.


