2026 FOREST RIVER SIERRA 3990FL
Description
NEW 2026 FOREST RIVER SIERRA 3990FL – 348072
**Forest River Sierra fifth wheel 3990FL highlights:**
- King Bed
- Front Living Area
- Two Tri-Fold Hide-A-Beds
- Theater Seating
The perfect fifth wheel for a larger family! This unit sleeps eight people the loft above the rear master bedroom and bathroom. In the 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 one-piece fiberglass shower for comfort. 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 cambered powder coated frame with rust prohibitor construction allows for more duration of the fifth wheel. Each model also comes with a TV antenna with booster, 60,000BTU on demand tankless water heater, Goodyear Radial tires with 7,000 lb. axles, and the list goes on. The interior is just as impressive with Beachside Sundance Congoleum linoleum, recessed residential lighting, a memory foam mattress, and hidden hinged, soft close drawers and cabinets!
Height: 13
InternalHeight: 7Specifications
Stock Number348072
VIN4X4FSES22TJ055395
Year2026
CategoryFifth Wheel
ManufacturerFOREST RIVER
ModelSIERRA 3990FL
LocationMesa, Arizona 85213
ConditionNew
Fresh Water Tank Capacity50 gal
Gray Water Tank Capacity80 gal
Black Water Tank Capacity50 gal
Sleeps8
Number of Slide Outs5
Hitch Weight2,825 lb
Exterior Length3 ft 7 in
Exterior Width8 in
Shipping Weight12,439 lb
Stock Number348072|
VIN4X4FSES22TJ055395|
Year2026|
CategoryFifth Wheel|
ManufacturerFOREST RIVER|
ModelSIERRA 3990FL|
LocationMesa, Arizona 85213|
ConditionNew|
Fresh Water Tank Capacity50 gal|
Gray Water Tank Capacity80 gal|
Black Water Tank Capacity50 gal|
Sleeps8|
Number of Slide Outs5|
Hitch Weight2,825 lb|
Exterior Length3 ft 7 in|
Exterior Width8 in|
Shipping Weight12,439 lb|
