2023 Grand Design Momentum M-Class FW, The 2023 Grand Design Momentum M-Class 381MS is a 43' 11' triple-slide luxury toy hauler fifth wheel designed for, featuring a 15-foot garage and a 20,000 lbs GVWR. It typically features 3-axle construction, 140 gallons of fresh water, and a 60-gallon fuel tank for the fueling station, ideal for long-duration, off-grid camping.
STOCK # 958J
Key Specifications (2023 Momentum 381MS)

Exterior Length: 43' 11'

Exterior Height: 13' 6'

UVW (Dry Weight): Approx. 15,800 lbs - 17,722 lbs

GVWR: 20,000 lbs

Hitch Weight: ~3,440 lbs

Garage Length: 15'

Sleeping Capacity: 5-7

Fresh Water Capacity: 140 - 152 Gallons

Fuel Capacity: 60 Gallons
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Key Features & Construction

Insulation: R-40 roof, R-45 floor, and insulated baggage doors.

Garage: 15-foot garage with three-layer insulated floor.

Power: 330W Roof Mounted Solar Panel with 50 AMP Charge Controller standard.

Appliances: On-demand water heater and 20 cu. ft. 12V refrigerator (standard).

Kitchen: Residential four-burner cooktop, convection microwave, and kitchen island.

Comfort: Third-party tested for 0-degree to 100-degree weather.