2026 Grand Design Momentum M-Class 381MS

New Toy Hauler in Draper, Utah, 84020

$148,595.00
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New 2026 Grand Design Momentum M-Class 381MS available in Draper, Utah
2026 Grand Design Momentum M-Class 381MS - New Toy Hauler For Sale by General RV Center in Draper, Utah features Slideout
2026 Momentum M-Class 381MS by Grand Design from General RV Center in Draper, Utah
New 2026 Grand Design Momentum M-Class 381MS available in Draper, Utah

Unit Specs

  • Stock #336880
  • Year2026
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum M-Class
  • Floorplan381MS
  • Floorplan LayoutBath and a Half
    Front Bedroom
    Kitchen Island
    Loft
    Two Entry/Exit Doors
  • Type Toy Hauler
  • ConditionNew
  • Length43' 0"
  • VIN573FM4534TBB04472
  • Price $171,431.00
  • Sale Price $148,595.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Sleeps5
  • Water Capacity (Fresh)140 gal
  • Water Capacity (Black)104 gal
  • Water Capacity (Grey)52 gal
  • Slideouts3
  • Tow/Hitch Weight3440 lbs

Grand Design Momentum M-Class toy hauler 381MS highlights:

  • Bath and a Half
  • 15' Separate Garage
  • Dual Entry Doors
  • Kitchen Island with Bar Stools
  • Overhead Loft Bed
  • Universal Docking Station

 

Traveling with friends and family can be comfortable when you have a full double entry bathroom and a half bath available when camping and enjoying the trails on your off-road toys! You will have an 15' garage space that can become a second living/dining area as well as a bedroom if you add the optional Liftsuite System. There is an overhead loft bed and a four-seat sofa slide for more sleeping space in the main living area. Everyone can watch the LED TV when waiting for dinner, and enjoy the fireplace on those chiller nights. The kitchen island offers a sink to wash dishes, extra counter space for serving meals and two stools to dine at. The cook will love all the upgraded appliances and the space thanks to the slide. The front bedroom gives you a king bed slide, lots of clothing space, and a slide top dresser for even more storage. 

 

With any Momentum M-Class toy hauler by Grand Design, you will enjoy luxury at every turn! They have been constructed to a superior standard with a thermal roof design, triple insulated main floor and garage floor, and a Rail-Tite underbelly seal that will allow you to camp in all elements. Each model also features an 8' 5" wide body chassis with a wide rail design, no wheel wheels, and a dovetail entry for easier loading. The Stealth A/C system provides maximum cooling power, and the CRE3000 suspension system means you can enjoy a smooth tow each time. You will love the luxurious interior with a professional grade stainless steel cooktop, interior color changing LED accent lighting, a fiberglass shower with a glass door, and solid surface countertops. 

  • Bath and a Half
  • Front Bedroom
  • King Bed
  • Kitchen Island
  • Loft
  • Two Entry/Exit Doors

2026 Grand Design Momentum M-Class 381MS Features


  • Exterior
    Slideout

2026 Grand Design Momentum M-Class 381MS Specifications

General

MSRP

$157,708

Dimensions

Height

13' 6"

Height (interior)

8' 5"

Length

43' 11"

Width

8' 5"

Weights

Dry Weight

15,800 lbs

GVWR

22,500 lbs

Hitch Weight

3,440 lbs

Payload Capacity

6,700 lbs

Capacities

Refrigerator Capacity

20 cu ft

Sleep Capacity

6

Water Capacity - Black

104 gal

Water Capacity - Fresh

140 gal

Water Capacity - Grey

52 gal

Exterior

# Awnings

2

# Axles

3

# Doors

3

# Slides

3

Chassis

101" Wide Body Super Chassis w/Drop-Frame Storage

Hitch

Fifth Wheel

Rear Opening

Ramp

Electrical

# A/C

1

A/C Spec

30,000 BTU

*MFG Specs are for base unit. Certain options may change specifications listed. Please consult dealer for more details. Data is provided by a 3rd party. RVUSA.com cannot guarantee the accuracy of the data presented.

2026 Grand Design Momentum M-Class 381MS Literature


Seller Info

General RV Center

14295 Minuteman Dr
Draper, UT 84020

Member Since 2023

See 2097 Reviews

Unit Specs

  • Stock #336880
  • Year2026
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum M-Class
  • Floorplan381MS
  • Floorplan LayoutBath and a Half
    Front Bedroom
    Kitchen Island
    Loft
    Two Entry/Exit Doors
  • Type Toy Hauler
  • ConditionNew
  • Length43' 0"
  • VIN573FM4534TBB04472
  • Price $171,431.00
  • Sale Price $148,595.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Sleeps5
  • Water Capacity (Fresh)140 gal
  • Water Capacity (Black)104 gal
  • Water Capacity (Grey)52 gal
  • Slideouts3
  • Tow/Hitch Weight3440 lbs

Email Seller

Request More Info on this 2026 Grand Design Momentum M-Class 381MS Offered for sale by General RV Center
General RV Center
General RV Center

14295 Minuteman Dr
Draper, UT 84020

Phone: Click to Call

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2026 Grand Design Momentum M-Class 381MS Gallery

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New 2026 Grand Design Momentum M-Class 381MS available in Draper, Utah
2026 Grand Design Momentum M-Class 381MS - New Toy Hauler For Sale by General RV Center in Draper, Utah features Slideout
2026 Momentum M-Class 381MS by Grand Design from General RV Center in Draper, Utah
New 2026 Grand Design Momentum M-Class 381MS available in Draper, Utah