{"@context":"https://schema.org","@type":"Product","name":"5 Used Grand Design Momentum M-Class Fifth Wheels for sale","offers":{"@type":"AggregateOffer","offerCount":5,"lowPrice":"54995.00","highPrice":"99950.00","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/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/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"}}]}}