2026 Forest River Sierra 4002FB

New Fifth Wheel in Montclair, California, 91763

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New 2026 Forest River Sierra 4002FB available in Montclair, California

2026 Forest River Sierra 4002FB - New Fifth Wheel For Sale by Giant RV in Montclair, California

2026 Sierra 4002FB by Forest River from Giant RV in Montclair, California

Unit Specs

Stock #FSI201
Year2026
ManufacturerForest River
Make Forest River
ModelSierra
Floorplan4002FB
Type Fifth Wheel
ConditionNew
Length521' 0"
VIN4X4FSES28TJ055479
Price Get Price
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Water Capacity (Fresh)50 gal
Water Capacity (Black)100 gal
Water Capacity (Grey)100 gal
Slideouts4

Looking to buy a 2026 Forest River Sierra Fifth Wheel RV?

This 2026 Forest River Sierra 4002FB is the perfect rig for your adventures and explorations. Ready to be a proud Forest River owner? This 2026 Forest River Sierra 4002FB is the perfect fit. This rig cuts no corners on space, expanding into a massive living area with 4 slides. The 50 gallon fresh water tank is just right for easy RV traveling.

2026 Forest River Sierra 4002FB Features

2026 Forest River Sierra 4002FB Specifications

Dimensions

Height

13' 4"

Length

43' 5"

Width

8' 0"

Weights

Dry Weight

12,889 lbs

GVWR

15,500 lbs

Hitch Weight

2,340 lbs

Payload Capacity

2,611 lbs

Capacities

Refrigerator Capacity

16 cu ft

Sleep Capacity

Water Capacity - Black

100 gal

Water Capacity - Fresh

50 gal

Water Capacity - Grey

100 gal

Exterior

# Awnings

# Axles

# Doors

# Slides

Hitch

Fifth Wheel

Electrical

# A/C

A/C Spec

Dual ducted 15k BTU Air Conditioners, prepped for 3rd 15k BTU A/C

*MFG Specs are for base unit. Certain options may change specifications listed. Please consult dealer for more details. Data is provided by a 3rd party. RVUSA.com cannot guarantee the accuracy of the data presented.