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New 2025 Forest River RV Sandpiper 3990FL

Fifth Wheel

Stock #2490

Batesville, IN

1 of 7

Specifications

Sleeps	9	Slides	5
Length	43 ft 6 in	Ext Width	8 ft
Ext Height	13 ft 4 in	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	4X4FSAS29SJ047379

Description

Forest River Sandpiper fifth wheel 3990FL highlights:

Shower with a Seat
Outside Storage
Theater Seating
Kitchen Island
Full and Half Loft

Wow! Check out this fifth wheel with a full loft for the little ones, plus a half loft that can become a play room/storage room. The main floor includes five slides for maximum space, a front living area with dual hide-a-bed sofas, plus an entertainment center with a 50" flat screen TV for movie nights! Once your guests have converted the living room to their bedroom at night, you can take the rear private bedroom. There is a king bed slide out here, plus a wardrobe, plus a closet with washer and dryer prep for full-time living. The full bath is easily accessible for everyone, and the middle kitchen will be a favorite with the chef of your group. Here, you'll find a 17 cu. ft. 12V refrigerator, an island, tons of counter space, plus a hutch to display nice dishes, and a pantry for dry goods. Don't let this fifth wheel slip away!

You will find the perfect balance of size, space, features, and luxury with any one of these Forest River Sandpiper fifth wheels! They are constructed with a welded aluminum framed vacuum bonded laminated superstructure, a cambered powder coated frame with rust prohibitor, and a fully enclosed underbelly to protect the units vitals during any season. The large tinted windows come with a 80/20 UV prohibitor or you can choose the optional dual pane windows. Some hassle-free amenities include a 60k BTU on-demand water heater, full coach water filter system, tire pressure monitor system, and an electric leveling system! Inside, you'll enjoy stainless steel appliances, solid surface countertops, upgraded raised panel cabinet doors, and rustic wood plank linoleum to name a few comforts!

Options:

CHEF&aposS KITCHEN PACKAGE
HIGHLAND INTERIOR COLOR
SUMMIT PACKAGE

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.

Favorite RVs

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Highly recommend.
We never felt pressured into a sale. Michael was knowledgeable made the buying process super easy. We will def choose Lees for any future camper purchases.

Brandy from Sunman, IN
Best around town!
We have been talking for a few years to get a fifth wheel camper. We stopped in one day and Hobie was fantastic, he helped us narrow down what we needed/wanted in our camper. He was open and honest about prices which we really appreciated. We never felt pressured and they helped us with whatever questions

Jessica
Keep up the awesome work!!!
She was very informative, gave me a lot of options and really cared about what I was looking for! She is a very nice and friendly person , we was able to bond and I am happy to call her my new friend! Keep up the awesome work!!!

Chris

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812-934-3210 or Contact Us

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812-934-3210
Contact Us
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Lee's Country RV 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 units on our lot. Please contact us @812-934-3210 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.

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.

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New 2025 Forest River RV Sandpiper 3990FL

3990FL Floorplan

Specifications

Description

Features