2026 Grand Design Momentum M-Class 381MS
New Toy Hauler in Draper, Utah, 84020





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
MSRP
$157,708
Height
13' 6"
Height (interior)
8' 5"
Length
43' 11"
Width
8' 5"
Dry Weight
15,800 lbs
GVWR
22,500 lbs
Hitch Weight
3,440 lbs
Payload Capacity
6,700 lbs
Refrigerator Capacity
20 cu ft
Sleep Capacity
6
Water Capacity - Black
104 gal
Water Capacity - Fresh
140 gal
Water Capacity - Grey
52 gal
# Awnings
2
# Axles
3
# Doors
3
# Slides
3
Chassis
101" Wide Body Super Chassis w/Drop-Frame Storage
Hitch
Fifth Wheel
Rear Opening
Ramp
# A/C
1
A/C Spec
30,000 BTU
2026 Grand Design Momentum M-Class 381MS Literature
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
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