2025 Sierra 4003MB

Overview

Standards

Specifications

Testimonials

• 2025 Sierra 4003MB by Forest River

  Wherever you go, the Sierra line up will ensure you make the most out of every adventure. Unique floorplan designs like bunkhouses, front living spaces, or mid-bunk/offices will accommodate any traveler or group. Automatic level up, 16.8 french door refrigerator, and underbelly armor combine to create a perfect balance of size, space, features and luxury.

  Equipment

  Interior Decor: Terra

  • Summit Package
    • Electric Leveling System
    • Goodyear Tires with 7,000lb axles
    • 2” Rear Receiver Hitch and 4-Pin Connector (n/a 3990FL, 4002FB)
    • Two 15,000BTU Air Conditioners
    • Anti-lock Braking System
    • Tire Pressure Monitoring System
    • 60,000BTU On Demand Water Heater
    • 40,000BTU Furnace
    • BoonDocker Solar System-200W Panel with controller & battery
    • MORryde Steps with Strut (wherever available)
    • Heated and Enclosed Holding Tanks (12V pads)
    • Washer and Dryer Prep
    • King Wi-Fi Extender System and Olypmus Antenna
    • Underbelly Armor
    • Soft Close Residential Drawers & Cabinets Throughout
    • 50” Flat Screen Television
    • 4 Camera Security Prep with Back-Up Cam
    • Full Coach Water Filter System
    • Power Fan in Bathroom(s)
    • 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
    • Lippert LatchXtend Door Handle
    • Outdoor Grill/Griddle
    • Ceiling Paddle Fan (where available)
  • Chef’s Kitchen Package
    • 16 Cubic 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
  • RVIA Seal
  • Portable Vacuum

  The RV Nation Advantage Features included with every new RV Purchase!

  • 12V Deep Cycle Battery - Free!
  • Propane in Tanks - Free!
  • Dealer Prep - Free!
  • North American Service Network - Free!

  Estimated Payment

  $519.58/mo^*

  Apply Now

  • Get Approved (USA)
  • Get Approved (Canada)

  ^* Not all buyers will qualify. Contact us for details.

  We Deliver! Get An Estimate.

  Whether you pick it up, we bring it to you, or meet in the middle, taking delivery of your new RV couldn't be easier.

  Ship To:

  Calculate

  USA only, Please contact us for Canadian delivery quote.

• EXTERIOR FEATURES

  • 4 or 6 point electric level up system
  • Quad MORryde® step above with strut
  • Color match high gloss gel coated colored exterior fiberglass
  • Painted two tone aerodynamic fiberglass front cap with improved turning radius
  • Underbelly Armor
  • Enclosed and heated dump valves
  • 16” Spare tire kit
  • Large tinted windows with 80/20 UV prohibitor
  • Electric awning with LED light strip
  • Lippert Ladder Prepped
  • Power front jacks with spring loaded snap pins
  • 16” E-Rated Radial tires
  • Automotive-style fender skirts
  • Hitch light
  • Porch light with interior switch
  • 30 lb. double LP tanks with auto change over
  • Two exterior speakers
  • Rain gutters with extra long drip spouts (prevents black streaking)
  • Insulated heavy duty slam lock baggage doors
  • Exterior foldable grab handle
  • Unobstructed pass thru area
  • Upgraded aluminum rims
  • Oversized friction hinge entry door
  • GoPower 190W roof mounted solar panel with controller and battery

  INTERIOR FEATURES

  • Stainless steel appliances
  • Rustic wood plank linoleum
  • Decorative backsplash
  • Two color coordinated interiors (Cocoa, Pearl)
  • Soft close full extension drawer glides
  • Stainless steel under mounted kitchen sink
  • LED lighting throughout
  • Recessed residential lighting
  • Accent lighting over dinette
  • Mocha accent crown molding over kitchen cabinets
  • Extra large picture windows throughout
  • Vented side windows in slideouts
  • TV antenna with booster
  • Solid wood drawer fronts with birch sides
  • Upgraded raised panel cabinet doors with designer rails
  • Bedroom slideout fascia
  • Memory foam mattress
  • Teddy Bear® bunk mats
  • 50” flatscreen TV
  • Premium soundbar with built in DVD player
  • Designer window treatment accented per décor
  • Ceiling fan
  • Tri-fold hide-a-bed sofa
  • Residential stain resistant carpet
  • Quilted bedspread

  APPLIANCES/SYSTEMS

  • High Performance 15K A/C (second A/C prep)
  • 16 cu. ft. 12V refrigerator
  • Living room A/C
  • Floor ducted 35,000 BTU furnace
  • 30” OTR stainless steel microwave
  • Three burner high output range with 22” oven
  • Interior monitor panel for holding tanks
  • Satellite and cable hookup with RG-6 cable for high quality picture
  • Porcelain foot flush toilet(s)
  • 10 Gal. DSI water heater
  • 65 Amp converter
  • Power fan bathrooms
  • Heated Holding Tanks (12V)

  CONSTRUCTION

  • Welded aluminum-framed, vacuum bonded laminated superstructure
  • 3/8″ roof decking
  • Cambered powder coated frame with rust prohibitor
  • Fully enclosed underbelly
  • 5” truss roof rafters
  • R-10 sidewall construction
  • Laminated sidewalls
  • Laminated slideout walls

  FOR YOUR SAFETY

  • Smoke alarm
  • Fire extinguisher
  • Breakaway switch (Battery hook-up required)
  • Dead-bolt lock on entry door
  • LP/CO gas detector
  • Fire escape windows

• Specification	Imperial	Metric
  Cargo Capacity	2,891 lbs	1,311.34 kg
  Dry Weight	12,609 lbs	5,719.35 kg
  GVWR	15,500 lbs	7,030.68 kg
  Pin Weight	2,010 lbs	911.72 kg
  Overall Length	42' 9"	13.03 m
  Overall Width	96"	243.84 cm
  Black Water Tank	50 gal	189.27 l
  Fresh Water Tank	50 gal	189.27 l

Similar Models

• Home
• Fifth Wheels
• New 2025 Sierra 4003MB Fifth Wheel