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Sleeps 9
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5 Slides
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Front LivingKitchen Island
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44ft Long
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12,439 lbs
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DRIFTWOOD
3990FL Floorplan
Specifications
Sleeps | 9 | Slides | 5 |
Length | 43 ft 6 in | Ext Width | 8 ft |
Ext Height | 13 ft 4 in | Interior Color | DRIFTWOOD |
Hitch Weight | 2825 lbs | GVWR | 15375 lbs |
Dry Weight | 12439 lbs | Cargo Capacity | 2936 lbs |
Fresh Water Capacity | 50 gals | Grey Water Capacity | 80 gals |
Black Water Capacity | 50 gals | Tire Size | 16" |
Furnace BTU | 35000 btu | Available Beds | King |
Refrigerator Type | 12V Stainless | Refrigerator Size | 17 cu ft |
Cooktop Burners | 3 | Number of Awnings | 1 |
LP Tank Capacity | 30 lbs | Water Heater Capacity | 60000 gal |
Water Heater Type | On Demand Tankless | AC BTU | 30000 btu |
TV Info | LR 50" Flat Screen TV | Awning Info | 20' Electric with LED Light Strip |
Axle Count | 2 | Number of LP Tanks | 2 |
Shower Type | Shower w/Seat | VIN | 4X4FSAS25SJ047296 |
Description
Forest River Sandpiper fifth wheel 3990FL highlights:
- Shower with a Seat
- Outside Storage
- Theater Seating
- Kitchen Island
- Full and Half Loft
Luxury Elevated – Explore the 2025 Forest River Sandpiper 3990FL at Campers Inn RV
Step into a new level of residential-style luxury and cutting-edge design with the 2025 Forest River Sandpiper 3990FL. This front living fifth wheel is built for travelers who don’t want to leave the comforts of home behind. Perfect for full-timers, seasonal RVers, or anyone looking to upgrade their camping lifestyle, the 3990FL delivers next-level space, elegance, and features that redefine what RV living should be.
Highlights of the 2025 Sandpiper 3990FL:
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Spacious Front Living Room: Designed for entertaining or relaxing in style, the raised front living area features dual tri-fold sofas, theater seating, a 50” LED TV, and a cozy electric fireplace. It's your personal movie theater on wheels.
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Chef-Inspired Kitchen: The center kitchen includes residential appliances, a full-size pantry, solid surface countertops, a kitchen island, and a free-standing dinette—ideal for both quick meals and holiday feasts.
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Private Rear Master Suite: The rear bedroom boasts a king bed slide-out, large wardrobe, and washer/dryer prep, giving you all the convenience of home while you're on the road.
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Expansive Bathroom: With dual sinks, a spacious walk-in shower with a seat, linen storage, and premium fixtures, this bathroom offers a spa-like experience wherever you park.
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Five Slide-Outs: The intelligently designed floorplan uses five slide-outs to create an open, residential feel throughout the living room, kitchen, and bedroom.
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Abundant Storage: Inside and out, the Sandpiper is packed with storage—including pass-through compartments, overhead cabinets, and closet space—to keep your essentials organized and accessible.
Reasons to Choose the Forest River Sandpiper 3990FL:
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Residential Comforts: This model offers the spaciousness and upscale features that make long stays or full-time RVing feel truly comfortable.
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Entertainer's Dream: Whether you're hosting guests or enjoying a quiet evening in, the front living space is built for relaxation and conversation.
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Built for All Seasons: With superior insulation, a heated and enclosed underbelly, and upgraded construction, the Sandpiper is ready for year-round travel.
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High-End Features at a Competitive Price: Get the luxurious features of higher-end models without the premium price tag.
Why Buy from Campers Inn RV?
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Trusted Name Since 1966: As one of the nation’s largest family-operated RV dealerships, Campers Inn RV brings decades of experience and trust to every purchase.
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Nationwide Network of Locations: With convenient locations coast to coast, we offer one of the largest new and used inventories in the country.
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RV Professionals Who Care: Our team is passionate about the RV lifestyle and dedicated to helping you find the perfect RV for your needs, lifestyle, and budget.
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Full Service After the Sale: Our service and parts departments are here to support you throughout your RV ownership journey—from maintenance to upgrades.
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Flexible Financing Solutions: Our in-house finance experts work with leading lenders to offer great rates and custom options.
Elevate your camping experience with the 2025 Forest River Sandpiper 3990FL—where elegance meets adventure. Stop by Campers Inn RV today and let us help you hit the road in comfort, style, and confidence. Your dream RV is waiting.
Features
Standard Features (2025)
Exterior
- Automatic Electric Level-Up System
- 2" Towing and Accessory Hitch (Where Available)
- 7,000lb axles with Anti-lock Braking System
- Goodyear Radial Tires w/ anti-lock brakes
- Lippert auto adjust brakes
- GoPower 200W roof mounted solar panel with controller and battery
- Quad MORryde® step above with strut (Where Available)
- Color matched high gloss gel coated colored exterior fiberglass
- Painted two tone aerodynamic fiberglass front cap with improved turning radius
- Underbelly Armor
- TST Tire Pressure Monitoring System
- Enclosed and heated dump valves
- 16" Spare tire kit
- Large tinted windows with 80/20 UV prohibitor
- Electric awning with LED light strip
- Prepped for Lippert On-The-Go Ladder
- Power front jacks with spring loaded pins
- Automotive-style fender skirts
- Hitch light
- Porch light with interior switch
- 30 lb. double LP tanks with auto change over
- Rain gutters with extra long drip spouts (Prevents black streaking)
- Insulated heavy duty slam lock baggage doors
- Exterior foldable grab handle
- Unobstructed pass through storage area
- Upgraded aluminum rims
- Oversized friction hinge entry door
- Exterior LP Quick Connect with Grill/Griddle Cooktop
Interior
- Solid Surface Kitchen Counter tops
- Fiberglass one-piece shower with folding teak seat
- Washer and Dryer Prep
- 6' 4" slide-out height
- Stainless steel kitchen package
- Beachside sundance linoleum
- Hidden hinged, soft close drawers and cabinets
- Full extension ball bearing drawer guides
- Stainless steel under mounted kitchen sink
- Trash receptacle in kitchen
- Decorative backsplash
- Two color coordinated interiors
- LED lighting throughout
- Recessed residential lighting
- Accent lighting over dinette
- Extra large, panoramic picture windows throughout
- Vented side windows in slide-outs
- TV antenna with booster
- Solid wood drawer fronts with birch sides
- Solid wood, square inset cabinet doors, painted or wood grain
- Bedroom slide-out fascia
- Memory foam mattress
- Teddy Bear® bunk mats
- 50" flat screen smart TV
- JBL Aura Cube FM/Bluetooth media center
- Designer window treatment
- Ceiling fan
- Tri-fold hide-a-bed sofa
- Quilted bedspread
Appliances/Systems
- Dual ducted 15k BTU Air Conditioners, prepped for 3rd 15k BTU A/C
- 17 cu. ft. 12V refrigerator
- 60,000 BTU On Demand Tankless Water Heater
- 40,000 BTU furnace
- Heated Holding Tanks (12V)
- Floor ducted 40,000 BTU furnace
- 30" OTR stainless steel microwave
- Chef collection 3 burner / 24" oven with drawers
- Interior monitor panel for holding tanks
- Satellite and cable hookup with RG-6 cable for high quality picture
- Porcelain foot flush toilet(s)
- 65 Amp converter
- Power fan in Kitchen and Bathroom(s)
- Full coach water filtration system
Construction
- Welded aluminum-framed, vacuum bonded laminated superstructure
- 5/8" tongue and groove plywood floor decking
- 2 x 3 floor joists, 12" on center
- Laminated sidewalls
- 3/8" roof decking (Full walk-on roof)
- Cambered powder coated frame with rust prohibitor
- Underbelly armor
- 5" truss roof rafters
- R-10, 2" sidewall construction
- Laminated slide-out walls
For Your Safety
- Smoke alarm
- Fire extinguisher
- Breakaway switch (Battery hook-up required)
- Dead-bolt lock on entry door
- LP/CO2 gas detector
- Fire escape windows
Popular Options
- Free Standing Dinette in place of Booth (3550BH only)
- Two chairs in place of ottoman bench
- Central vacuum
- Slide room awnings (N/A dinette slides)
- Washer and Dryer
Polar Tech Package (Optional)
- Dual pane windows
- 3rd AC power saver direct dump system w/ wall thermostat
Summit Package
- Electric Auto Leveling System
- Goodyear Tires with 7,000 lb. axles
- 2" Rear Receiver Hitch and 4-Pin Connector (Where Available) (NA 4002FB and 3990FL)
- Two 15,000BTU Air Conditioners
- Power fan in Kitchen and Bathroom(s)
- Anti-lock Braking System
- Tire Pressure Monitoring System
- 60,000 BTU On Demand Tankless Water Heater
- BoonDocker Solar System-200W Panel with controller & battery
- MORryde Steps with Strut (Where Available)
- Heated and Enclosed Holding Tanks (12V pads)
- Washer and Dryer Prep
- King Wi-Fi Extender System and Olympus Antenna
- Underbelly Armor
- Soft Close Residential Drawers & Cabinets Throughout
- 50" Flat Screen smart TV
- 4 Camera Security Prep with Back-Up Camera prep
- Full Coach Water Filter System
- Enclosed, One-Piece Docking Station
- Color Matched Gel coated Fiberglass Exterior
- Aerodynamic Two Tone Fiberglass Painted Front Cap with Lights
- High Efficiency Radiant Foil (Roof and Floor)
- Spare Tire
Chef's Kitchen Package (Standard)
- 16 cu. ft. Stainless Refrigerator (12V)
- Stainless Range with Cast Iron Grates
- Solid Surface Countertops
- Stainless Apron Sink with Strainer
- Commercial Style Kitchen Faucet
- 30" Over-the-Range Stainless Microwave
- Countertop Extension
- Designer Backsplash
See us for a complete list of features and available options!
All standard features and specifications are subject to change.
All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.
Due to the current environment, our features and options are subject to change due to material availability.
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*All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.