2026 Grand Design Momentum M-Class 381MS

Information

2026 Grand Design Momentum M-Class 381MS

Our top-of-the-line Momentum Fifth Wheel Toy Haulers are — inside and out — our most luxurious Toy Haulers. With the comfort of a master suite and master bath, home’s now a long way from your house.

Features may include:

  • Thermal Roof Design (R-40)*
  • Fully Laminated Walls (R-11)*
  • Triple Insulated Main Floor (R-45)*
  • Triple Insulated Garage Floor (R-40)*
  • 1.5" Insulated Baggage Doors
  • Vented Attic
  • Insulated Gooseneck
  • Rail-Tite Underbelly Seal

Photos

Highlights

  • Santa Rosa, California
  • 2026
  • Grand Design
  • Momentum M-Class 381MS
  • Available
  • 8' 5"

Specifications

  • 2026
  • Grand Design
  • Momentum M-Class
  • 381MS
  • Toy Hauler - Fifth Wheel
  • Standard Bed: 60 X 80 Queen Bed | Shower: 48 X 30
  • 13' 6" | (w/opt. AC): 13' 6"
  • 43' 11"
  • 8' 5" | (w/ slide out): 14' 3"
  • 8' 5"
  • 15'
  • 18' 14'
  • 3,440 lbs.
  • 15,800 lbs.
  • 22,500 lbs.
  • 140 gal.
  • 52 gal.
  • 104 gal.
  • 60 gal
  • 6
  • 60 lbs
  • On-Demand
  • 20 cu. ft.
  • Propane Tanks: 2 | Construction Type: Aluminum Cage | Slide Room R-Value: R-11 | Garage R-Value: R-40 | Slides: 3 | Awnings: 2
  • R-45
  • R-11
  • R-40
  • 35,000 BTU
  • 30,000 BTU
  • 3
  • 17.50 in.
  • ST215/75R17.5 LRH