2026 Forest River Sierra 3990FL
New Fifth Wheel in Middlebury, Indiana, 46540
Unit Specs
- Stock #R054727
- Year2026
- ManufacturerForest River
- Make Forest River
- ModelSierra
- Floorplan3990FL
- Floorplan LayoutFront Entertainment
Front Living Area
Kitchen Island
Loft
Rear Bedroom - Type Fifth Wheel
- ConditionNew
- Length43' 0"
- VIN4X4FSES27TJ054727
- Price $97,053.00
- Sale Price $68,995.00
- Need to know your payment? Use our RV Loan Calculator!
- Sleeps8
- Water Capacity (Fresh)50 gal
- Water Capacity (Black)50 gal
- Water Capacity (Grey)80 gal
- Slideouts5
- Tow/Hitch Weight2825 lbs
Forest River Sierra 3990FL Fifth Wheel for Sale in Middlebury, IN
If you're searching for a large family fifth wheel in Indiana with multiple sleeping areas and residential comfort, the Forest River Sierra 3990FL is built to impress. Available now at Royal RV Center in Middlebury, IN, this spacious model is perfect for big families or hosting guests.
Sleeps Eight or More with Loft Space
This unique layout offers incredible sleeping capacity with:
- Full and half lofts featuring bunk mats and storage
- Rear master bedroom with king bed slide
- Two tri-fold hide-a-bed sofas in the living area
Perfect for kids, guests, or extended family trips.
Front Living Room with Fireplace
Enjoy a dedicated front living area with:
- Theater seating
- Two sofa sleepers
- 50" TV and fireplace
A great space to relax, entertain, or unwind after a long day.
Spacious Kitchen with Island
The central kitchen features:
- Kitchen island with large sink
- Free-standing dinette
- 12V refrigerator and stove
- Ample counter space and storage
Designed for easy meal prep and family dining.
Private Master Suite & Large Bath
The rear bedroom includes a king bed slide, while the bathroom offers a walk-in shower with seat for added comfort.
Built for Comfort & Durability
- Welded aluminum frame with vacuum-bonded construction
- Enclosed underbelly with armor protection
- Electric leveling system for quick setup
- Goodyear tires with 7,000 lb. axles
Premium Interior Features
- Residential lighting and cabinetry
- Rustic wood plank flooring
- Memory foam mattress
- Wi-Fi extender system
Available at Royal RV Center
Visit Royal RV Center in Middlebury, Indiana, proudly serving Indiana, Michigan, Ohio, and beyond, to explore the Forest River Sierra 3990FL fifth wheel and enjoy spacious, comfortable camping for the whole family.
- Front Entertainment
- Front Living
- Kitchen Island
- Loft
- Rear Bedroom
2026 Forest River Sierra 3990FL Features
-
Exterior
Slideout
2026 Forest River Sierra 3990FL Specifications
Height
13' 4"
Length
43' 6"
Width
8' 0"
Dry Weight
12,439 lbs
GVWR
15,375 lbs
Hitch Weight
2,825 lbs
Payload Capacity
2,936 lbs
Refrigerator Capacity
16 cu ft
Sleep Capacity
10
Water Capacity - Black
50 gal
Water Capacity - Fresh
50 gal
Water Capacity - Grey
80 gal
# Awnings
1
# Axles
2
# Doors
1
# Slides
5
Hitch
Fifth Wheel
# A/C
2
A/C Spec
Dual ducted 15k BTU Air Conditioners, prepped for 3rd 15k BTU A/C
2026 Forest River Sierra 3990FL Literature
Unit Specs
- Stock #R054727
- Year2026
- ManufacturerForest River
- Make Forest River
- ModelSierra
- Floorplan3990FL
- Floorplan LayoutFront Entertainment
Front Living Area
Kitchen Island
Loft
Rear Bedroom - Type Fifth Wheel
- ConditionNew
- Length43' 0"
- VIN4X4FSES27TJ054727
- Price $97,053.00
- Sale Price $68,995.00
- Need to know your payment? Use our RV Loan Calculator!
- Sleeps8
- Water Capacity (Fresh)50 gal
- Water Capacity (Black)50 gal
- Water Capacity (Grey)80 gal
- Slideouts5
- Tow/Hitch Weight2825 lbs
Estimated Payment-
Email Seller
Request More Info on this 2026 Forest River Sierra 3990FL Offered for sale by Royal RV Center
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