NEW 2024 Grand Design Momentum G-Class 350G

The Grand Design Momentum G-Class Fifth Wheel 350G represents the epitome of luxury, innovation, and adventure in the world of fifth-wheel trailers. Crafted with meticulous attention to detail by Grand Design RV, this camper is tailored for outdoor enthusiasts and families who demand the utmost in comfort and convenience. Whether you're planning a weekend getaway or embarking on an extended road trip, the Momentum G-Class 350G promises to redefine your camping experience with its exceptional features and thoughtful design. At first glance, the Momentum G-Class 350G makes a bold statement with its striking exterior design. Built with durability and style in mind, this fifth wheel boasts a rugged construction and aerodynamic profile, ensuring smooth towing and improved fuel efficiency. Premium exterior features such as an electric awning with LED lighting, exterior speakers, and pass-through storage compartments provide both functionality and elegance, while the sleek graphics add a touch of sophistication to your adventures. Step inside, and you'll be greeted by a luxurious and spacious interior that exudes comfort and style. The Momentum G-Class 350G features a well-appointed floor plan that maximizes space and functionality, providing ample room for relaxation, entertainment, and storage. The main living area serves as the heart of the camper, boasting plush seating, elegant finishes, and large panoramic windows that fill the space with natural light. Whether it's unwinding after a day of adventure or hosting friends for a dinner party, this area offers the perfect setting for making memories. Entertain guests or unwind with your family in the inviting living area, complete with an entertainment center equipped with a large LED TV and a cozy fireplace. Adjacent to the living area is the fully-equipped kitchen, where culinary enthusiasts will find everything they need to prepare gourmet meals on the go. The kitchen boasts high-end appliances, including a residential-size refrigerator, a three-burner cooktop, a convection microwave oven, and a spacious pantry. With ample counter space and storage options, cooking becomes a pleasure rather than a chore, ensuring you can enjoy restaurant-quality meals wherever your adventures take you. The Momentum G-Class 350G features a versatile bedroom area that provides a tranquil retreat at the end of the day. The luxurious master suite boasts a comfortable queen-size bed, ample storage space, and an en-suite bathroom with a spacious shower and vanity. With its plush bedding and upscale amenities, this bedroom offers the perfect oasis for rest and relaxation during your travels. The Momentum G-Class 350G is equipped with advanced technologies and energy-efficient systems to enhance your camping experience. LED lighting throughout the camper provides bright illumination, while the multi-zone climate control system ensures a comfortable indoor climate regardless of the weather outside. For off-grid adventures, optional solar panels are available to keep your batteries charged and appliances running smoothly, allowing you to stay off the grid for longer periods. With its innovative design, luxurious interior, and top-of-the-line amenities, the Grand Design Momentum G-Class Fifth Wheel 350G is the ultimate choice for travelers seeking adventure without sacrificing comfort. Whether you're exploring scenic landscapes, embarking on cross-country road trips, or simply enjoying quality time with family and friends, this exceptional fifth wheel offers everything you need for an unforgettable camping experience. Experience the luxury of the open road and make lasting memories with the Momentum G-Class 350G by Grand Design RV.

Gone. Easy. - The all new Momentum G-Class is lighter without sacrificing any comfort or spaciousness — thanks to our tall ceilings and slide outs. With all of the quality, innovation, and functionality that our family of Momentum owners love, it's everything you need and nothing you don’t.


  • 101" Wide Body Chassis - A full 5” wider than many coaches in its class, the widebody chassis allows for more livable floor space with deeper sliderooms, wider sofas in rear lounge models, and space saving sliding pocket doors into the bathrooms…all at a shorter towing length.

  • Wide Rail Design - Heavy duty I-beam main rails are placed further outward on the chassis. This wider rail placement provides a more stable jack stance, and allows for the slideroom gearpacks to be enclosed inside the frame rails (rather than outside).

  • No Wheel Wells - A true toy hauler with no wheel wells to maximize cargo option. Not to mention more floor space for camping.

  • Dovetail Entry - Dovetails ensure you have a longer ramp and softer angle for loading your toys.

MORryde CRE3000 Suspension - When it comes to suspension performance, it’s all about suspension travel. Increased travel means smoother towing, improved towability and better protection from damaging road shock.

Cooper Tires - 17.5" All-Steel H-Rated Tires. Chip Guard: Protects from chips or cuts. Scrub Guard: Minimizes wear from starts, stops, tight turns and curb impacts. Speed Rating: 75 MPH. Load Rating: 4,805 LBS

Sound by Rockford Fosgate

  • Rockford Fosgate + Fifth Wheels

    • Shake it up with Rockford Fosgate. Includes Rockford Fosgate head unit, interior and exterior speakers, an amplified subwoofer and over 500 watts of power!

  • Stage 1 Package - 500+ Watts of Total Power (Standard):

    • Rockford Fosgate Source Unit (App Controllable)

    • 10" Powered Interior Subwoofer

    • 6.5" 3-Way Interior Speakers

  • Stage 2 Package - 900+ Watts of Total Power (Optional):

    • Rockford Fosgate Source Unit (App Controllable)

    • 10" Powered Interior Subwoofer

    • Six 6.5" 3-Way Interior Speakers

    • 10" Exterior Subwoofer

    • Two 6.5" Color Optix™ 2-Way Speakers

    • 400 Watt 4-Channel Amplifier

    • Exterior Rockford Fosgate Source Unit (App Controllable)

Solar Package - Solar Power now comes STANDARD. Camp longer and in more places with the factory-installed 175W Roof Mounted Solar Panel, 39 AMP Charge Controller, and 12V Refrigerator standard on all Momentum G-Class Fifth Wheels. No camping spot is off-limits. Just add batteries and go. Included in the standard solar package for Momentum G-Class Fifth Wheels: 175W Solar Panel, 39 AMP Charge Controller, and 12 Volt Refrigerator

Constructed to a Superior Standard

  • Thermal Roof Design (R-40) - Fiberglass insulation and a layer of radiant foil insulation cover the roof. Grand Design goes further by extending both insulation layers the full length of the roof and around to the bottom of the front cap.

  • Full Laminated Walls (R-11) - Sidewalls, ramp door, slideroom endwalls, and slideroom roof are all welded aluminum framed and laminated with rigid foam insulation. Many others use wood framing and soft fiberglass insulation in the sliderooms that can settle over time and leave uninsulated air gaps.

  • Triple Insulated Main Floor (R-40) - The underbelly is lined with a radiant foil insulation barrier (Layer 1) and is then covered with fiberglass insulation that wraps all the way up the sides of the frame rails (Layer 2). The main floor enhances the R-Value with yet another layer of fiberglass insulation (Layer 3).

  • Triple Insulated Garage Floor (R-40) - While many toy hauler garage floors are NOT insulated, our exclusive garage floor design provides 3 layers of insulation. A base layer of radiant foil insulation (Layer 1) is topped with fiberglass insulation (Layer 2), and finishes with a second layer of radiant foil insulation on the underside of the garage floor (Layer 3).

  • Insulated Baggage Doors - Rigid Foam insulation lines the inside of our heavy duty baggage doors.

  • Vented Attic - To maximize the effectiveness of the roof insulation, a vented attic allows condensation to escape the roof structure.

  • Insulated Gooseneck - Radiant foil insulation under the gooseneck is a place often forgotten by others.

Four Seasons RV - we believe in making dreams of adventure a reality. As a small, family-owned dealership specializing in RV sales and service, we take pride in our commitment to customer satisfaction and transparency. With our "Where the fun begins" slogan as our guiding principle, we strive to be more than just a place to buy an RV – we're your trusted partners in exploration. Our knowledgeable product specialists are passionate about helping you find the perfect RV to suit your lifestyle and aspirations. And with our straightforward pricing and no additional fees policy, you can trust that your RV buying experience will be both seamless and enjoyable. From the moment you step onto our lot, to the day you drive off into the sunset, we're here to support you every step of the way. Experience the difference with Four Seasons RV, where every journey begins with excitement and possibility.


Exterior Height

13’ 5”

Exterior Height (w/opt.AC)

13’ 5”

Exterior Length

39’ 9”

Exterior Width

8’ 5”

Exterior Width (w/ slide out)

13’ 4”

Interior Height

8’ 7”


Hitch / Pin Weight

2,600 lbs


12,950 lbs


16,800 lbs


Fresh Water Capacity

98 gallons

Grey Water Capacity

52 gallons

Waste Water Capacity

104 gallons

Propane Tanks




Sleeping Capacity


Fuel Capacity

30 gallons


Water Heater



15 cu ft


35,000 BTU


30,000 BTU




Wheel Size


Tire Size


Retail Price
Sales Price
Stock # 102369
Year 2024
Make Grand Design
Model Momentum G-Class
Trim 350G
Condition NEW



Category Class Fifth Wheel
Interior Color Silver Maple
Secondary Class Toy Hauler
RDS Class Fifth Wheel
Dry Weight (LBS) 13704 LBS
Other Specifications
VIN 573FM4223RBB01552
Garage Size 14.6
Number Of Axles 2
Ride Digital