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Keystone Alpine Avalanche Edition fifth wheel 366LS highlights:

  • Five Slides
  • King Bed
  • Free-Standing Dinette
  • Largest L-Shaped Sofa
  • Desk with a Chair

Interior Layout & Amenities

  • Sleeping Area: Front master bedroom with King bed slide-out

  • Living Space: Center living with largest L-shaped sofa and recliners

  • Kitchen: Rear island layout with residential 18 cu ft fridge, three-burner cooktop, pantry and island counter space

  • Dining: Free-standing dinette

  • Workspace: Built-in desk with chair

  • Bath: Dual-entry shower featuring a seat; master closet and dresser; washer/dryer prep included


 Construction Features & Exterior

  • Construction: Sturdy wide-body frame with 12" I-beams, laminated sidewalls, dual-pane windows, fully enclosed heated underbelly with Polar Pack insulation (Reflective Astro foil layers, dual attic vents)

  • Suspension & Axles: Dexter heavy-duty 7,000-lb axles, sailun G-rated tires, shock-absorbing Road Armor hitch pin and suspension prep for TPMS

  • Conveniences: Hydraulic 6-point leveling, Strut-Assisted SolidStep®, Class A style slam-door basement storage (~150 cu ft), Easy-access water center, generator prep, battery quick disconnect, TV hookup, backup/side camera prep

  • Outdoor: Two power awnings (9' and 16'), 73? sewer hose carrier, care-free awnings with adjustable arms, 50-amp service with detachable cord

Call, Click, Text or Visit Us Today at Campers Inn of Kings Mountain and Find Your Away!

Stock 360 Tour & Stock Images may be shown. Colors & Specs may vary.

New 2026 Keystone RV Avalanche 366LS

Type: Fifth Wheel
Condition: NEW
Year: 2026
Manufacturer: Keystone RV
Brand: Avalanche
Model: 366LS
Weight (Dry/Gross): 14027 lbs / --
Sleeps: 5
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