2025 Keystone Alpine Avalanche Edition 366LS

This 2025 Keystone Alpine Avalanche Edition 366ls is listed at $76,500. The average Fifth Wheel listing on TrueRVs is $62,174. Higher pricing may reflect lower mileage, better condition, or additional features.

The Alpine Avalanche Edition 366ls is a Fifth Wheel. It measures 40 feet in length. It has 5 slide outs for additional living space when parked. Fifth wheels are large towable RVs that connect to a pickup truck via a hitch mounted in the truck bed.

The Alpine Avalanche Edition 366ls sleeps up to 6, with enough room for a family.

This Alpine Avalanche Edition 366ls is 40 feet long, placing it in the larger end of the Fifth Wheel category. Check campground length limits before booking, as some sites may not accommodate units over 40 feet.