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    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
    2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale2026 FOREST RIVER SIERRA 3990FL New Fifth Wheel for sale
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    2026 FOREST RIVER SIERRA 3990FL

    MSRP: $108,412
    $72,981 
    SAVE $35,431

    Seller Information

    View Seller Information

    Keystone RV Center

    Contact:KRV Leads

    Greencastle, Pennsylvania 17225

    General

    Stock Number
    82172
    VIN
    4X4FSES26TJ054704
    Year
    2026
    Category
    Fifth Wheel
    Manufacturer
    Model
    Location
    Greencastle, Pennsylvania 17225
    Condition
    New
    Description
    New 2026 Forest River RV Sierra 3990FL Details: Forest River Sierra fifth wheel 3990FL highlights: Full and Half Lofts King Bed Walk-In Shower Front Living Area Two Tri-Fold Hide-A-Beds Theater Seating   The perfect fifth wheel for a larger family! This unit sleeps eight or more with the full and half lofts above the rear master bedroom and bathroom. In the full loft area there are two 44" x 74" bunk mats for comfort as well as wardrobe/storage at the head of each. The master bedroom features a king size bed that slides out to create more space by the bed. A spacious bath features a walk-in shower for comfort and includes a seat so you can relax while you shower. A spacious kitchen features two slides, a free standing dinette in one, and the 12V refrigerator and stove in the other. There is also a center island with large sink for added food prep space. Head up the steps in front to a dual slide front living area with 50" TV and fireplace beneath the window. There is also theater seating opposite the TV, and a tri-fold hide-a-bed in each slide allowing added sleeping space when needed.   Each one of these Forest River Sierra fifth wheels are equipped with everything you need to make the most of each adventure! The underbelly armor will protect your unit's vitals from road debris and the painted two tone aerodynamic fiberglass front cap has an improved turning radius to make them easier to navigate. With an electric leveling system, you can set your unit up quick and easy then get to having fun faster than ever. The welded aluminum framed, vacuum bonded laminated superstructure will hold up through every adventure and the cambered powder coated frame comes with rust prohibitor to last longer. Each model also includes the Summit Package that comes with a king Wi-Fi extender system and Olympus antenna, a full coach water filter system, Goodyear tires with 7,000 lb. axles, and the list goes on. The interior is just as impressive with rustic wood plank linoleum, recessed residential lighting, a memory foam mattress, and mocha accent crown molding over the kitchen cabinets! SleeperSize: King WeightDry: 12439

    Capacities

    Fresh Water Tank Capacity
    50 gal
    Gray Water Tank Capacity
    80 gal
    Black Water Tank Capacity
    50 gal

    Category Specific

    Sleeps
    8
    Number of Slide Outs
    5
    Washer / Dryer
    Yes

    Chassis

    Number of Axles
    Tandem
    Gross Vehicle Weight
    15,375 lb
    Hitch Weight
    2,825 lb

    Exterior

    Exterior Length
    43 ft 6 in
    Exterior Width
    8 ft
    Exterior Height
    13 ft 4 in

    Interior

    Interior Color
    SWITCHBACK
    Furnace BTUs
    40000