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.
Specifications
Length
40 ft 10 in
Sleeps
6 people
Slideouts
5
Unit features & options
- 10" I-Beams w/ 8" Z-drop frame technology and 100" wide-body construction (model specific)
- 12" I-Beams w/ 8" Z- drop frame technology and 100" wide-body construction (model specific)
- Road Armor shock absorbing hitch pin
- MaxTurn Technology and Hitch Vision w/ LED lighting
- High-gloss Laminated sidewalls w/ double-welded aluminum construction
- Large, tinted safety glass windows (80% tint)
- Framless dual-pane windows (optional)
- Painted fiberglass cap w/ patented Key Shield protection and LED lighting
- Radius roof w/ 5° pre-engineered roof trusses and walkable rafters
- 1-piece Alpha Super Flex TPO membrane
- Rear-mounted exterior ladder
- Summit slide-rooms w/ 6'10" interior height and hydraulic selector valves for slide outs
- Heated and enclosed underbelly w/ 1-piece polypropylene
- Dexter heavy duty 7,000 lb. axles w/ Nev-R-Adjust brakes (model specific)
- Dexter heavy duty 8,000 lb. axles w/Nev-R-Adjust brakes (model specific)
- Slide Awnings: Triples (optional)
- Slide Awnings: Quads and Above (optional)
- Road Armor Shock Absorbing Suspension w/ wet bolts, brass bushings, and oversized 1/2" shackles
- Sailun G-rated tires
- Lippert T.P.M.S Prep Port
- Premium Lippert Titan-BaseCamp 6-point Hydraulic auto-leveling system (includes larger landing gear, LED lights at all jack posts, and intuitive touch screen w/ integrated BlueTooth capabilities)
- Super size, 6' 4" tall, 30" wide entry door
- Lippert Strut Assisted SolidStep
- 150 Cu. Ft. heated basement storage and class-A style, dual slam latch doors
Full specifications
Get more info
2026 Alpine Avalanche Edition 366LS
Dealer information
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.
Specifications
Length
40 ft 10 in
Sleeps
6 people
Slideouts
5
Unit features & options
- 10" I-Beams w/ 8" Z-drop frame technology and 100" wide-body construction (model specific)
- 12" I-Beams w/ 8" Z- drop frame technology and 100" wide-body construction (model specific)
- Road Armor shock absorbing hitch pin
- MaxTurn Technology and Hitch Vision w/ LED lighting
- High-gloss Laminated sidewalls w/ double-welded aluminum construction
- Large, tinted safety glass windows (80% tint)
- Framless dual-pane windows (optional)
- Painted fiberglass cap w/ patented Key Shield protection and LED lighting
- Radius roof w/ 5° pre-engineered roof trusses and walkable rafters
- 1-piece Alpha Super Flex TPO membrane
- Rear-mounted exterior ladder
- Summit slide-rooms w/ 6'10" interior height and hydraulic selector valves for slide outs
- Heated and enclosed underbelly w/ 1-piece polypropylene
- Dexter heavy duty 7,000 lb. axles w/ Nev-R-Adjust brakes (model specific)
- Dexter heavy duty 8,000 lb. axles w/Nev-R-Adjust brakes (model specific)
- Slide Awnings: Triples (optional)
- Slide Awnings: Quads and Above (optional)
- Road Armor Shock Absorbing Suspension w/ wet bolts, brass bushings, and oversized 1/2" shackles
- Sailun G-rated tires
- Lippert T.P.M.S Prep Port
- Premium Lippert Titan-BaseCamp 6-point Hydraulic auto-leveling system (includes larger landing gear, LED lights at all jack posts, and intuitive touch screen w/ integrated BlueTooth capabilities)
- Super size, 6' 4" tall, 30" wide entry door
- Lippert Strut Assisted SolidStep
- 150 Cu. Ft. heated basement storage and class-A style, dual slam latch doors
Full specifications
Get more info
2026 Alpine Avalanche Edition 366LS
