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2026 Keystone Avalanche 366LS
NewStock #20973
Listing price
2026 Avalanche 366LS
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
The Keystone Avalanche 366LS puts the kitchen at the back where it belongs in a layout this size, opening up the living area and giving the whole rig a roomy, residential feel. The 100" wide body construction and 6'10" tall summit slides make a real difference day-to-day, and details like a Girard on-demand tankless water heater, solid surface countertops, and a Furrion refrigerator with ice maker push it firmly into the full-timer category. A King bed, dual Coleman-Mach 15K BTU air conditioners, and the Polar Pack four-season climate package mean the Avalanche 366LS is set up for comfort in more than just mild weather. The Lippert Titan hydraulic auto-leveling system with its digital touchscreen takes the headache out of setup, and stackable washer and dryer prep keeps long-term convenience on the table.
Length
40 ft 10 in
Dry weight
14,027 lbs
Sleeps
4
Slideouts
5
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
There may be room for price negotiation.
$69,997 – $84,995
This unit is ranked 4 of 4 by asking price in this group.
The listing price on this unit has changed 1 time.
See the complete price timeline and the rest of this unit's pricing insights.
Three Way Campers
Marietta, GA
Sells faster than 72% of Georgia RV dealers
Compared with 23 dealers in Georgia
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