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New 2026 Forest River RV Sandpiper 4003MB

Fifth Wheel

Stock #CP4083

Carleton Place, ON

1 of 35

+35

Price: $114,899
MSRP: $146,599
Save: $31,700

Payments From: $1,033 /mo.

43ft long
12,609 lbs
Sleeps 8

4 slides
Bunkhouse

Rear Living Area

See All Specs

Specifications

Sleeps	8	Slides	4
Length	42 ft 9 in	Ext Width	8 ft
Ext Height	13 ft 4 in	Hitch Weight	2010 lbs
GVWR	15500 lbs	Dry Weight	12609 lbs
Cargo Capacity	2891 lbs	Fresh Water Capacity	50 gals
Grey Water Capacity	100 gals	Black Water Capacity	50 gals
Tire Size	16"	Furnace BTU	40000 btu
Number Of Bunks	1	Available Beds	King
Refrigerator Type	12V Stainless	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	10' 8" 20' Electric with LED Light Strip	Axle Count	2
Washer/Dryer Available	Yes	Number of LP Tanks	2
Shower Type	Shower w/Seat	VIN	4X4FSAS23TJ048562

Description

Forest River Sandpiper fifth wheel 4003MB highlights:

Middle Bunkhouse
King Bed Slide Out
Hidden Pantry
Outdoor Flat Top and Mini Fridge
Exterior Docking Station

Pick your favorite camping spot and head out for relaxing weekends in this four slide out fifth wheel! You will feel at home in the front private bedroom with its king bed slide out, large front wardrobe with shelves, plus washer and dryer prep if you plan to go full-time. Your guests can make their beds in the middle bunkroom that includes a hide-a-bed sofa with a bunk above, plus a desk if you choose to make this room an office. There is even a loft above this room for more sleeping or storage space. Everyone will love to meet in the middle living area that includes a rear hide-a-bed sofa, theater seating across from the entertainment center, and a free-standing table and chairs for dining. And the chef will enjoy having a kitchen island for more prep space, along with a 12V refrigerator and a three burner high range with a 24" oven. Don't overlook the exterior with an outside kitchen, 20' power awning, and pass-through storage!

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 for added protection against the elements. 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, Beachside Sundance linoleum, recessed residential lighting, and many more comforts!

Features

Standard Features (2026)

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
Rich Solar 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
Tire Pressure Monitoring System
Spare tire
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 with extended latch (Main Entry)
Exterior LP Quick Connect

Interior

Solid Surface Kitchen Counter tops
Fiberglass one-piece shower
Washer and Dryer Prep
7’ slide-out height (Main Slides)
Stainless steel kitchen package
Beachside Sundance Congoleum 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" flatscreen smart TV (65” 3900HBLR)
JBL Aura Cube FM/Bluetooth media center
Designer window treatment
Ceiling fan
Tri-fold hide-a-bed sofa
Quilted bedspread
Prepped for inverter

Appliances/Systems

Dual ducted 15k BTU Air Conditioners, prepped for 3rd 15k BTU A/C
AIRDIRECT® Air Vents for improved efficiency
16 cu. ft. 12V refrigerator
60,000BTU On Demand Tankless Water Heater
40,000BTU furnace
Heated Holding Tanks (12V)
Floor ducted 40,000BTU 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)

Construction

5/8" tongue and groove DryMax® OSB 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

Two chairs in place of ottoman bench
Cordless vacuum
Slide room awnings (N/A dinette slides)
Washer and Dryer (Standard on 3800RK & 3900HBLR)
Dual pane windows (N/A 3900HBLR 84” Window)
3rd A/C power saver direct dump system w/ wall thermostat

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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Big Country RV is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax and licensing. Motorized vehicles interest is figured at the rate of 8.99% OAC. Manufacturer pictures, specifications, and features may be used in place of actual units on our lot. Please contact us @613-599-3940 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.

New 2026 Forest River RV Sandpiper 4003MB

4003MB Floorplan

Specifications

Description

Features

Retail Consumer Credit Application

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RV interested in:

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Specifications