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Des Moines New

2021 Grand Design Momentum 381M

Fifth Wheel
  • Type: Fifth Wheel
  • Layout: Bunkhouse, Toy Hauler
MSRP $108,042
Call Or Email For Best Price!



Extraordinary Living. Extreme Play.

The Momentum Fifth Wheel Toy Hauler is the point where absolute luxury meets mobile garage! We have completely raised the Toy Hauler bar by incorporating an elegant Master Bath and Master Suite (with full walk-in closet) into this unit! But trust us, we didn’t ignore the Living and Garage areas. Check out our 360° tours and get a feel for the extraordinary space we’ve created. We know you will agree with us when we say that “The Momentum RV is the place to live well and play hard!”.

Our new Momentum M-CLASS Fifth Wheel Toy Haulers are lighter, but are no lightweight when it comes to features. Inside and out, the Grand Design M-CLASS series has redefined the look and feel of the toy hauler. When it comes to elegant design and amenities, one word encapsulates it… “CLASS”.


  • STOCK #: P118327
  • Location: Des Moines
  • Year: 2021
  • Condition: New
  • GVWR lbs: 20,000
  • Unloaded lbs: 14,700
  • Hitch Weight: 2,800
  • Fresh Gals: 155
  • Grey Gals: 78
  • Black Gals: 78
  • Slideouts: 3
  • Sleeps: 9
  • Layout: Bunkhouse, Toy Hauler
  • Interior Color: Pebble
  • LENGTH: 43 ft

Options Included

  • 2nd AC Bedroom 15k BTU
  • 3rd A/C 15k BTU
  • 3rd A/C Prep
  • Auxiliary Fresh Water Tank
  • Garage LED HD TV
  • Gen II 3 Season Door with Sliding Windows
  • Generator-Onan 5.5KW Gasoline Generator
  • Happi-Jac Electric Bunk System w/Folding Sofas
  • Heat Pump A/C
  • Kitchen Power Fan w/Rain Sensor
  • M-Class Exterior Package
  • M-Class Garage Package
  • M-Class Luxury Interior Package
  • Momentum Patio Chairs
  • Rear Aluminum Deck System w/Rear Power Awning
  • Rear Patio Steps
  • RVIA Seal
  • Solar Prep
  • Under Unit LED Light Kit
  • Upgraded Cooper H-Rated tires w/17.5" Wheels (Triple Axle)
  • Weather-Teck Insulation Package

Floor Plan




  • (2) Bedside Electrical Outlets
  • 18' cu ft Refer
  • 2nd A/C 15,000 BTU
  • 30" Stainless Steel Microwave
  • 35K BTU Furnace
  • AM/FM DVD Player w/Bluetooth
  • Bedroom Heat Registers
  • Closeable A/C Vents
  • Dual Reading Lights Over Bed
  • Garage LED HD TV
  • Generator - Onan 5.5KW Gas
  • HD Plat Panel TV in Living Room
  • Heat & AC Duct In Bathroom
  • Heated Travel Center w/Whole House Water Filtration
  • High Arch Kitchen Faucet w/Pull Down Sprayer
  • LED Ceiling Lighting Throughout
  • Monitor Panel
  • Power Vent Fan in Bathroom
  • Pre Wired for Satt/Cable
  • Pre-Wired & Braced for 3rd A/C
  • TV Antenna w/Booster
  • Washer Dryer (Prep)


  • 60" x 80" Queen Bed
  • Ball Bearing Full Extention Drawer Glides
  • Ductless flooring Throughout Living Area
  • Entertainment Center LED TV w/Fireplace
  • Fold Up Countertop w/2 chairs
  • Pleated Shades
  • Seamless 48” x 30” Fiberglass Shower
  • Solid Core Cabinet Stiles
  • Solid Hardwood Drawer Fronts
  • Solid Surface Bathroom Vanity
  • Super Sofa


  • Center Kitchen
  • Center Living
  • Front Bath
  • Front Bedroom
  • Rear Garage


  • Carbon Monoxide Detector
  • Fire Extinguisher
  • Folding Entry Handle
  • Hitch Light
  • LP Detector
  • Safety Breakaway
  • Smoke Detector
  • Spare Tire
  • Step Light
  • Wired For Back-Up Camera
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  • 2 30# LP Bottles
  • 50 Amp Service
  • Auxilary Fresh Water Tank
  • Backup Camera Prep
  • Battery Kill Switch in Pass Thru Storage Area
  • Black Tank Flush
  • Detachable power cord w/ LED light
  • Dual Entry Door
  • Easy Access Low Point Drain Valves
  • Exterior Entertainment Center
  • EZ Winterization Valves
  • Fiberglass & Thermofoil Roof and Front Cap Insulation
  • Frameless Tinted Windows
  • Fully Decked Walk-On Roof
  • Gutters with Downspouts
  • Heated & Enclosed Dump Valves
  • Heated and Enclosed Underbelly
  • In-Floor Water Lines Located Above Insulation
  • Insulated Slideout Floors
  • Kitchen Power fan w/Rain Sensor
  • Marine Grade LED Hitch Light
  • Metal Slam Latch Baggage Doors
  • No-Rust Aluminum "Tread Lite" Entry Steps
  • One Touch Electric Awning w/LED Light
  • Outside Shower
  • Outside Speakers
  • Rear Ladder
  • Six Point Leveling System
  • Solar Prep
  • Under Unit LED Light Kit
  • Weather-Tek Insulation Package
  • Zero Degree Extended Season Enjoyment


  • Aluminum Rims
  • Correct Track Alignment System
  • Drop Frame Chassis (12" over 10")
  • MORryde® CRE3000 Suspension System
  • Straight Frame Chassis (12")
  • Under Carriage Spare Tire
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Disclaimer: We make every effort for complete and accurate descriptions of our RVs, but manufacturers and certain campers have changes or options that may not be noted and may differ. GLRV is not to be held responsible for misprints. Please verify the equipment on your RV before purchasing.
2021 Grand Design Momentum 381M
MSRP $108,042
Call Or Email For Best Price!
Call Us!