NEW 2024 Grand Design Momentum G-Class 31G

The Grand Design Momentum G-Class Travel Trailer 31G stands as a testament to luxury, innovation, and adventure in the realm of travel trailers. Meticulously crafted by Grand Design RV, this camper is tailored for outdoor enthusiasts and families seeking a premium camping experience without sacrificing comfort or convenience. Whether you're embarking on a weekend getaway or a long-term road trip, the Momentum G-Class 31G promises to redefine your camping adventures with its exceptional features and thoughtful design. From the moment you set eyes on the Momentum G-Class 31G, its sleek and stylish exterior commands attention. Built with durability and sophistication in mind, this travel trailer boasts a robust construction and aerodynamic profile, ensuring smooth towing and enhanced fuel efficiency. Premium exterior features such as an electric awning with LED lighting, outdoor speakers, and ample storage compartments provide both functionality and elegance, while the striking graphics add a touch of flair to your travels. Step inside, and you'll discover a spacious and inviting interior designed to cater to your every need. The Momentum G-Class 31G features a well-appointed floor plan that maximizes space and functionality, offering plenty of room for relaxation, entertainment, and storage. The main living area serves as the heart of the camper, boasting comfortable seating, elegant finishes, and large panoramic windows that flood the space with natural light. Whether it's unwinding after a day of adventure or hosting friends for a movie night, this area provides the perfect backdrop for creating lasting memories. Entertain guests or relax 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 delicious meals on the go. The kitchen features high-end appliances, including a three-burner cooktop, a convection microwave oven, and a spacious refrigerator with freezer. With ample counter space and storage options, cooking becomes a breeze, allowing you to enjoy home-cooked meals wherever your travels take you. The Momentum G-Class 31G boasts a versatile bedroom area that provides a peaceful retreat at the end of the day. The luxurious master suite features 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 sanctuary for rest and relaxation during your travels. The Momentum G-Class 31G 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 Travel Trailer 31G is the ultimate choice for travelers seeking adventure without compromising on comfort. Whether you're exploring scenic landscapes, embarking on cross-country road trips, or simply enjoying quality time with family and friends, this exceptional travel trailer 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 31G by Grand Design RV.

Go big, conveniently - 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.

Goodyear Endurance Tires - A DEPENDABLE TIRE DESIGNED TO HELP YOU TOW WITH CONFIDENCE. Trailer tires designed with durability in mind to help make towing a trailer less stressful by reducing impact-related failures. Special purpose trailer tires are not intended to be used on cars or light trucks. Endurance trailer tires feature a rounded profile to help cushion the trailer’s ride, and the symmetric tread design with closely spaced ribs provide constant rubber-to-road contact for straight tracking


  • 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.

Solar Package - Solar Power now comes STANDARD. Camp longer and in more places with the factory-installed 200W Roof Mounted Solar Panel, 50 AMP Charge Controller, and 12V Refrigerator standard on all Momentum G-Class Travel Trailers. No camping spot is off-limits. Just add batteries and go. Included in the standard solar package for Momentum G-Class Travel Trailers: 200W Solar Panel, 50 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-&) - 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).

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

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.
Retail Price
Sales Price
Stock # 102368
Year 2024
Make Grand Design
Model Momentum G-Class
Trim 31G
Condition NEW


Category Class Toy Hauler Travel Trailer
Secondary Class Toy Hauler
Interior Color Silver Maple
VIN 573TM3624R1220088
Promotion Featured
Overall Size
Exterior Height 12' 4"
Exterior Height (w/opt. AC) 12' 4"
Exterior Length (FT/IN) 35' 11"
Exterior Width (IN/MM) 8' 5"
Exterior Width (w/ slideout) 14' 4"
Interior Height (IN) 7' 7"
Garage Length 13'
Hitch/Pin Weight (lbs) 1,600 LBS
UVW (lbs) 9920 LBS
Gross Weight Rating (LB/KG) 13,000 LBS
Max Sleeping Count 6
Total Fresh Water Tank Capacity (GAL/L) 90 gal.
Total Gray Water Tank Capacity (GAL/L) 37 gal.
Total Black Water Tank Capacity (GAL/L) 76 gal.
Number of LP Tanks 2
LP Tank Capacity 40 lbs
Fuel Tank Capacity (GAL/L) 30
Water Heater Tank Tankless
Refrigerator Size 8 cu. ft.
Refrigerator Power Mode 12V
Number Of Stove Burners 3
Heater BTU 30,000
Heater Type LP
AC BTU 28,500
Electrical Service 30 AMP
Generator Prep Included
Running Gear
Number Of Axles 2
Wheel Size 16"
Tire Size ST235/80R16RLE
Brake System ABS
Construction Type Aluminum Cage
Floor R-Value R-40
Wall R-Value R-7
Roof R-Value R-40
Slide Room R-Value R-7
Sidewall Construction Gel Coated Fiberglass Exterior
Main Bedroom Size Queen
Number Of Bunks 2
Bunk Size Queen
Number Of Couches 3
Number Of Convertible Sofa Beds 2
Number Of Bathrooms 1.5
Shower Size 27" x 36"
Number Of Slideouts 2
Number Of Awnings 1
Awning Length 18'
Number Of Doors 2
Stabalizing Jacks Manual
Leveling Jack Type Power Tongue Jack
Other Specifications
Slide(s) 2
Sleeps 6
Furnace BTU 30,000
Number Of Propane Tanks 2
Total Propane Tank Capacity (GAL/LBS) 40
Number Of Queen Size Beds 1
Water Heater Tank Capacity (GAL/L) Tankless
Air Conditioning 28,500 BTU
Ride Digital