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2026 FOREST RIVER SIERRA 4002FB
Rv TypeFifth Wheel
Length521 ft
Fuel Type-
Mileage-
Description
2026 Forest River Sierra 4002FB
The 2026 Forest River Sierra 4002FB is a large, residential-style fifth wheel designed for families or multi-group travelers who want maximum space, privacy, and home-like comfort. With a unique two-bedroom, two-bathroom floorplan plus loft and four slide-outs, this unit delivers exceptional living space making it ideal for extended stays or full-time living.
Highlights:
Two Bedrooms + Loft with Dual Bathrooms featuring a front master suite, a second private bedroom with its own rear full bath and entry door, plus an overhead loft perfect for families or guests
Spacious Residential Living & Kitchen Area with a kitchen island, theater seating, fireplace, free-standing dinette, and large panoramic windows creating a true home-on-wheels feel
Built for Extended Stays & Comfort including 43 5 length, four slide-outs, dual A/C (prepped for 3rd), 16 cu. ft. refrigerator, tankless water heater, solar, and massive tank capacities (50/100/100 gallons)
Visit Giant RV today to explore the 2026 Forest River Sierra 4002FB a fifth wheel built for family living, space, and residential comfort on the road.
The 2026 Forest River Sierra 4002FB is a large, residential-style fifth wheel designed for families or multi-group travelers who want maximum space, privacy, and home-like comfort. With a unique two-bedroom, two-bathroom floorplan plus loft and four slide-outs, this unit delivers exceptional living space making it ideal for extended stays or full-time living.
Highlights:
Two Bedrooms + Loft with Dual Bathrooms featuring a front master suite, a second private bedroom with its own rear full bath and entry door, plus an overhead loft perfect for families or guests
Spacious Residential Living & Kitchen Area with a kitchen island, theater seating, fireplace, free-standing dinette, and large panoramic windows creating a true home-on-wheels feel
Built for Extended Stays & Comfort including 43 5 length, four slide-outs, dual A/C (prepped for 3rd), 16 cu. ft. refrigerator, tankless water heater, solar, and massive tank capacities (50/100/100 gallons)
Visit Giant RV today to explore the 2026 Forest River Sierra 4002FB a fifth wheel built for family living, space, and residential comfort on the road.
RV details
Type
Fifth Wheel
Condition
New
Length
521 ft
GVWR
15,500 lbs
Odometer
0 mi
Slide-outs
4
Sleeping capacity
6
Floor plan
SIERRA
Dealer stock ID
FSI201
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