{"@context":"https://schema.org","@type":"Product","name":"11 Grand Design Momentum M-Class Fifth Wheels for sale","offers":{"@type":"AggregateOffer","offerCount":11,"lowPrice":"54995.00","highPrice":"159995.00","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/2025-grand-design-momentum-m-class-414m/e03e9063-9dc2-11f0-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2025 GRAND DESIGN MOMENTUM M-CLASS 414M","description":"2025 Grand Design Momentum M-Class 414M, 2025 Grand Design Momentum M-Class 414M Luxury Toy Hauler at Sonny s RVs in Casper, WY The 2025 Grand Design Momentum M-Class 414M is one of the most powerful, spacious, and luxurious toy haulers in the nation and you ll find it right here at Sonny s RVs in Casper, Wyoming, the state s premier Grand Design dealership. Top Features of the 2025 Momentum M-Class 414M*** PREVIOUS OWNER HAD PURCHASED AN EXTRA DOOR FOR THE FRONT MASTER CLOSET DOORS***Massive 46' 4\" luxury toy hauler built for serious adventure6 pt. Hydraulic Leveling System6k-watt Generator, Fuel Station, & SolarThree giant slide outs for expanded living spaceThree power awnings for outdoor shade & entertainmentTall 8.4 ft interior height for a true residential feelLarge rear garage perfect for ATVs, UTVs, bikes & gearFull-size Norcold residential refrigerator & upgraded kitchen appliancesFour-burner cooktop + convection ovenPlush sofa seating, recliners & premium décorSleeps up to 9 comfortably (king bed, queen bed, bunks, convertible beds)Tankless water heater + Rockford Fosgate premium entertainmentExterior patio/deck system for next-level campsite livingDesigned for extended travel, off-grid trips & full-time RVingInside & Outside SpeakersTV Outside ***PREVIOUS OWNER ADDED SEVERAL ADDITIONAL UPGRADES TO FW*** About the 2025 Grand Design Momentum M-Class 414M The Grand Design Momentum M-Class 414M is engineered for travelers who expect more more space, more power, more features, and more freedom. As one of the largest and most luxurious toy haulers in the Momentum lineup, the 414M brings the Grand Design quality RVers love, paired with a garage and living layout built for every kind of adventure Wyoming has to offer. Inside, the 414M feels like a high-end residential suite. The massive living area includes upgraded recliners, plush seating, entertainment options, and Grand Design s signature attention to detail. The chef s kitchen offers everything you need for extended stays, from a residential refrigerator to a convection microwave and four-burner stove. This model is perfect for riders, families, explorers, and long-haul travelers who demand the best in the toy-hauler segment. Sleeping up to nine people, the 414M provides room for everyone making it ideal for large groups or anyone who travels with toys and friends in tow. With a rear patio deck, three awnings, and plenty of outdoor living capability, the Momentum 414M transforms every campground into a luxury destination. Why Buy Your Grand Design Toy Hauler from Sonny s RVs? Sonny s RVs is Wyoming s #1 Grand Design Dealer, proudly serving Casper, Douglas, Gillette, Riverton, Wheatland, Glenrock, Sheridan & beyond. As a trusted Grand Design partner, we offer one of the best selections of Grand Design Momentum, Reflection, Imagine, and Solitude RVs in the state. Our team knows Grand Design inside and out. Whether you","itemCondition":"Used","priceCurrency":"USD","price":"99950.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-grand-design-momentum-m-class-395ms/1c8e900b-2359-11f1-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2026 GRAND DESIGN MOMENTUM M-CLASS 395MS","description":"2026 Grand Design Momentum M-Class 395MS, 2026 Grand Design Momentum M-Class 395MS The 2026 Grand Design Momentum M-Class 395MS is a luxurious toy hauler that offers exceptional comfort and style for your adventures on the road. With a length of 44.17 feet and a spacious interior, this RV provides ample living space for you and your travel companions. Whether you're relaxing in the vinyl sofa or preparing meals in the well-equipped kitchen with three oven burners and a full-size refrigerator, you'll feel right at home in this mobile retreat. This toy hauler also features high-end amenities such as a tankless water heater, automatic 30,000 BTU air conditioning, and a 35,000 BTU heater to keep you comfortable in any climate. The master bedroom boasts a queen-size bed, while the rear cargo area provides 14 feet of storage space for your outdoor gear. With modern features like Wi-Fi capability, back-up camera, and Rockford Fosgate entertainment system, the 2026 Grand Design Momentum M-Class 395MS ensures a luxurious and tech-savvy RV experience.","itemCondition":"Used","priceCurrency":"USD","price":"159995.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2021-grand-design-momentum-m-class-395-ms/92de6288-9860-50c1-9ce4-01ab5223ac07/","itemOffered":{"@type":"Thing","name":"2021 Grand Design Momentum M-Class 395 MS","description":"This RV is a thing of beauty! Just had new tires mounted, bearings repacked, slides cleaned and the roof scraped by the dealership on 12/08/2025. \r\n\r\nPurchased new Dec 2020, but we've decided it's a bit big for what we need. Very well maintained. It's been under a cover when not in use, and only taken out for it's annual inspection at the dealership. No issues with any of the electronics, etc. This model has an outside TV on the dining room pop-out, and a 14' garage, with a half bath in the back. All the goodies you'd expect from Grand Design. Our F-350 pulled this like a charm. ","itemCondition":"Used","priceCurrency":"USD","price":"79999.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-grand-design-momentum-m-class-399m/26c70527-3d59-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 GRAND DESIGN MOMENTUM M-CLASS 399M","description":"2026 Grand Design Momentum 399M, Grand Design Momentum fifth wheel toy hauler 399M highlights:

Front Private Bedroom
Kitchen Island
Hybrid Desk/Dinette
Unobstructed Pass-Thru Storage
Side Patio

This toy hauler has all the comfort and convenience you could ask for! Once you have unloaded your toys from the 12' 6\" separate garage, you can start lunch on the exterior griddle located by the side patio. There is also a 65\" TV here and a 1.7 cu. ft. refrigerator to entertain guests! And if you have guests staying over, you can choose to add the optional Liftsuite system with underside can lights in the garage. If the weather isn't cooperating, you can make meals in the fully equipped interior kitchen, complete with an island, pantry, pull-out countertop extension and more. An L-shaped sofa with recliners is in perfect view of the 50\" TV and fireplace, and there is even a hybrid desk/dinette with windows where you can get some work done if needed. Head towards the front to freshen up in the full bath before heading to bed in the private bedroom. Here, you'll find a queen bed slide out with an optional king bed, a large closet with washer and dryer prep, plus a dresser with TV prep if you want the option to watch movies in bed!

The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. The MORryde independent suspension 2.0 and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops!

","itemCondition":"Used","priceCurrency":"USD","price":"149995.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2025-grand-design-momentum-m-class-392m/2acb89f3-3d59-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2025 GRAND DESIGN MOMENTUM M-CLASS 392M","description":"2025 Grand Design Momentum M-Class 392M,

Grand Design Momentum M-Class toy hauler 392M highlights:

L-Shaped Sofa with Recline
Queen Bed
Overhead Loft Bed
Ramp Door/Patio

This toy hauler with a 17' separate garage will be perfect for your outdoor adventures. There is an adjustable tie-down system to keep your gear secure, an overhead loft bed, plus an optional half bath. And two optional Liftsuite Systems can be added if you need more sleeping space. There is also washer and dryer prep here, along with a flip-up pet dish for your furry friends. The chef will love the large kitchen countertop for more meal prep space, and there is a 20 cu. ft. refrigerator and pantry for food storage. You can get comfy on the L-shaped sofa across from the 50\" TV, or get some work done at the hybrid desk/dinette. There are also dual opposing slides here for added space. The third slide out is found in the front master bedroom, which includes drawers and storage space for your things. A queen bed will provide a great night's rest, and you have the option to choose a king bed if you want more space to stretch out!

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.

","itemCondition":"Used","priceCurrency":"USD","price":"119995.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-grand-design-momentum-m-class-394m/2e857622-3d59-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 GRAND DESIGN MOMENTUM M-CLASS 394M","description":"2026 Grand Design Momentum 392M,

Grand Design Momentum toy hauler 392M highlights:

L-Shaped Sofa with Recline
Queen Bed
Overhead Loft Bed
Ramp Door/Patio

This toy hauler with a 17' separate garage will be perfect for your outdoor adventures. There is an adjustable tie-down system to keep your gear secure, an overhead loft bed, two optional Liftsuite Systems plus an optional half bath. There is also washer and dryer prep here, along with a flip-up pet dish for your furry friends. The chef will love the large kitchen countertop for more meal prep space, and there is a 20-cu. ft. refrigerator and pantry for food storage. You can get comfy on the L-shaped sofa across from the 50\" TV, or get some work done at the hybrid desk/dinette. There are also dual opposing slides here for added space. The third slide out is found in the front master bedroom, which includes drawers and storage space for your things. A queen bed will provide a great night's rest, and you have the option to choose a king bed if you want more space to stretch out!

The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. The MORryde independent suspension 2.0 and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops!

","itemCondition":"Used","priceCurrency":"USD","price":"144995.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-grand-design-momentum-m-class-399m/f9887c31-3d58-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 GRAND DESIGN MOMENTUM M-CLASS 399M","description":"2026 Grand Design Momentum 399M, Grand Design Momentum fifth wheel toy hauler 399M highlights:

Front Private Bedroom
Kitchen Island
Hybrid Desk/Dinette
Unobstructed Pass-Thru Storage
Side Patio

","itemCondition":"Used","priceCurrency":"USD","price":"156996.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-grand-design-momentum-m-class-399m/dac5806c-3d58-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2026 GRAND DESIGN MOMENTUM M-CLASS 399M","description":"2026 Grand Design Momentum 399M, Grand Design Momentum fifth wheel toy hauler 399M highlights:

Front Private Bedroom
Kitchen Island
Hybrid Desk/Dinette
Unobstructed Pass-Thru Storage
Side Patio

","itemCondition":"Used","priceCurrency":"USD","price":"149995.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2024-grand-design-momentum-m-class-351m/e4f6981e-987a-11f0-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2024 GRAND DESIGN MOMENTUM M-CLASS 351M","description":"2024 GRAND DESIGN MOMENTUM M CLASS 351MS, Camping World ClearPrice - No Hidden Fees. No Surprises.

The price listed on this unit includes freight, vehicle prep, and documentation fee.

This Fifth-Wheel sleeps 11 people and is available at Camping World in Springfield, IL.

Specs: Length: 41.58' | Weight: 14700.0 lbs | Slide Outs: 3 | Sleep Number: 11 | Electrical Service: 50 amp | Fresh Water Tank: 140.0 gal | Black Water Tank: 104.0 gal

Also Includes: * ROOF AC * MICROWAVE","itemCondition":"Used","priceCurrency":"USD","price":"74366.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2018-grand-design-momentum-m-class-394m/791d3406-418a-11f1-adcf-02f5bff6b341/","itemOffered":{"@type":"Thing","name":"2018 GRAND DESIGN MOMENTUM M-CLASS 394M","description":"2018 Grand Design Momentum M-Class 394M,","itemCondition":"Used","priceCurrency":"USD","price":"54995.00"}}]}}