{"@context":"https://schema.org","@type":"Product","name":"5 Grand Design Momentum M-Class RVs for sale in California","offers":{"@type":"AggregateOffer","offerCount":5,"lowPrice":"89995.00","highPrice":"148995.00","priceCurrency":"USD","offers":[{"@type":"Offer","url":"https://www.rvt.com/buy/details/2023-grand-design-momentum-m-class-381ms/cd1fdede-30ac-11f1-9d95-02ea7b77d8a7/","itemOffered":{"@type":"Thing","name":"2023 GRAND DESIGN MOMENTUM M-CLASS 381MS","description":"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
www.granddesignrv.com +5

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.

","itemCondition":"Used","priceCurrency":"USD","price":"89995.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-grand-design-momentum-m-class-381ms/80eb1457-7f12-11f0-afd2-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2026 GRAND DESIGN MOMENTUM M-CLASS 381MS","description":"2026 GRAND DESIGN MOMENTUM M 381MS, Venture into Luxury with the 2026 GRAND DESIGN MOMENTUM M 381MS: Your Home on the Open Road!

Welcome to a new era of travel with the 2026 GRAND DESIGN MOMENTUM M 381MS, where elegance and exploration converge. This FIFTH WHEEL HAULER RV isn't just a vehicle; it's a mobile haven for those who crave adventure without sacrificing the comforts of home.

Sleek and Sturdy Design:
The 2026 GRAND DESIGN MOMENTUM M 381MS stands out with its sophisticated and functional design. Its sleek lines promise smooth travel, while the high-quality materials ensure durability and a touch of luxury that lasts.

Expansive and Inviting Interiors:
Step into the spacious interior of the GRAND DESIGN MOMENTUM M, where every detail caters to your comfort and convenience. The layout maximizes space and functionality, offering a perfect setting for relaxation and entertainment.

Supreme Comfort for the Road:
In the GRAND DESIGN MOMENTUM M, comfort is king. The plush seating, cozy sleeping spaces, and versatile living areas are all designed to make your journeys as relaxing as they are memorable.

Safety at the Forefront:
Safety is a top priority in the GRAND DESIGN MOMENTUM M. Equipped with state-of-the-art safety features, this RV ensures peace of mind as you traverse various landscapes.

Environmentally Considerate Travel:
With the 2026 GRAND DESIGN MOMENTUM M 381MS, travel responsibly. Incorporating eco-friendly features, this RV allows you to enjoy the luxuries of travel while being mindful of the environment.

Why the 2026 GRAND DESIGN MOMENTUM M 381MS?
Opting for the GRAND DESIGN MOMENTUM M is a declaration of your love for refined travel and meaningful experiences. Whether it s for leisurely retreats or adventurous expeditions, this RV elevates every journey into an extraordinary experience.

Take the leap into a world of refined exploration with the 2026 GRAND DESIGN MOMENTUM M 381MS. Your luxurious home away from home awaits, ready to turn every road into a story of adventure and elegance!","itemCondition":"Used","priceCurrency":"USD","price":"148995.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-grand-design-momentum-m-class-381ms/a8bbafcb-8f04-11f0-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2026 GRAND DESIGN MOMENTUM M-CLASS 381MS","description":"2026 Grand Design Momentum M-Class 381MS,

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 queen bed slide with a king bed option, 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.

20 CU FT 12V REFRIGERATOR; 3RD A/C; 3RD A/C PREP; 6K WATT GENERATOR; 7K AXLE W/ABS DRUM BRAKES; AUXILIARY FRESH WATER TANK; BEDROOM A/C; EXTERIOR ENTERTAINMENT CENTER; EXTERIOR PKG; GARAGE LED HD TV; GARAGE PKG; GARAGE SUITE; GEN III 3 SEASON DOOR; HEAT PUMP A/C; KING BED UPGRADE; KITCHEN POWER FAN; LUXURY INTERIOR PKG; OMNICONNECT; PATIO CHAIRS; REAR ALUMINIUM DECK SYS; ROCKFORD FOSGATE STAGE 1; RVIA SEAL; SAFERIDE; SOLAR½ PKG; UNDER UNIT LED LIGHT KIT; UPGRADED H-RATED TIRES; WEATHER-TEK INSULATION PKG","itemCondition":"Used","priceCurrency":"USD","price":"148595.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-grand-design-momentum-m-class-381ms/eb6daefe-8f0f-11f0-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2026 GRAND DESIGN MOMENTUM M-CLASS 381MS","description":"Due to the nature of this electronic media, errors may occur. The dealer does not accept liability for errors or omissions in the contents of this electronic media. Consumers must confirm price, terms and options before purchasing. Prices stated are net of any manufacturer customer rebates (if applicable). All prices must be approved by a sales manager. Prices shown exclude government fees and taxes, any finance charges, any dealer document preparation charge, any elect transfer/registration charge, any emission testing. Pictures shown may not be of actual unit. The Ad price stated is on the RV listed in this ad only! This ad expires at Midnight tonight unless otherwise stated in the ad above

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

2026 Grand Design Momentum M-Class 381MS","itemCondition":"Used","priceCurrency":"USD","price":"134995.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2025-grand-design-momentum-m-class-381ms/2777fe9c-4f35-11f0-808c-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2025 GRAND DESIGN MOMENTUM M-CLASS 381MS","description":"Due to the nature of this electronic media, errors may occur. The dealer does not accept liability for errors or omissions in the contents of this electronic media. Consumers must confirm price, terms and options before purchasing. Prices stated are net of any manufacturer customer rebates (if applicable). All prices must be approved by a sales manager. Prices shown exclude government fees and taxes, any finance charges, any dealer document preparation charge, any elect transfer/registration charge, any emission testing. Pictures shown may not be of actual unit. The Ad price stated is on the RV listed in this ad only! This ad expires at Midnight tonight unless otherwise stated in the ad above

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

2025 Grand Design Momentum M-Class 381MS","itemCondition":"Used","priceCurrency":"USD","price":"114995.00"}}]}}