New 2025 Grand Design Momentum G-Class 350G Toy Hauler Fifth Wheel

Sold Virtual Tour Video Tour
2025 350G Features and Options

Adventure meets luxury in the New 2025 Grand Design Momentum G-Class 350G, a fifth wheel toy hauler designed for thrill-seekers who don’t want to compromise on comfort. Whether you're hauling dirt bikes, kayaks, or ATVs, this rugged and refined RV gives you the space, power, and features to make every journey unforgettable.

Now available at Campers Inn RV, the trusted name in RV sales since 1966, the Momentum G-Class 350G is your all-access pass to the ultimate outdoor lifestyle—combining Grand Design’s legendary build quality with real-world functionality and high-end style.


Why the 2025 Momentum G-Class 350G Stands Out

Garage-Ready for Big Toys
With a massive 14' 6" garage, the 350G is built for adventure gear of all shapes and sizes. Whether you're heading to the dunes, the mountains, or your favorite off-road trail, this toy hauler has the space and strength to bring everything with you. The garage also doubles as a bunk room, party deck, or mobile workspace—giving you maximum flexibility wherever you roam.

Luxury Interior That Feels Like Home
Step inside and you'll find modern interior styling, high-end materials, and smart design throughout. The living area features reclining theater seating, panoramic windows, a large LED TV, and an electric fireplace for cozy nights in. Whether you're entertaining or relaxing after a ride, the Momentum 350G gives you all the comforts of home on the road.

Chef-Worthy Kitchen
The spacious kitchen includes solid surface countertops, stainless steel appliances, a deep farmhouse sink, residential microwave, and a three-burner cooktop with oven. Tons of pantry space and overhead storage let you bring everything you need for life on the road—or at the campsite.

Master Suite Designed for Comfort
The private front bedroom features a queen bed (king optional), large wardrobe, overhead storage, and USB ports for all your devices. The adjoining full bath includes a walk-in shower with skylight, porcelain toilet, and modern fixtures, making this RV feel like a luxury hotel suite.


Feature Highlights:

  • 14' 6" garage with optional Happi-Jack bunk system and half bath

  • Ramp door converts to rear patio with rail system

  • Dual entry doors for convenience and privacy

  • Generator prep and fuel station for extended off-grid trips

  • Rockford Fosgate premium sound system

  • Solar package with roof-mounted panels and charge controller

  • 30-gallon fuel tank for toys

  • Triple ACs available for full climate control

  • Fully enclosed and heated underbelly for four-season camping


Built to Explore—Built to Last

The Momentum G-Class is engineered with Grand Design’s superior construction, including laminated aluminum-framed sidewalls, a wide-body chassis, and insulated roof and flooring. Whether you're chasing summer sun or winter powder, the 350G is ready for all-season use.


Why Buy from Campers Inn RV?

When it comes to RVing, Campers Inn RV is more than just a dealership—we’re your partner in adventure. As one of the most trusted names in the industry, we’re committed to helping you find the perfect RV with an experience that’s fun, honest, and pressure-free.

Here’s what sets us apart:

  • Massive Inventory Nationwide: Choose from one of the largest selections of Grand Design RVs in the country

  • Transparent Pricing: No hidden fees or surprise charges—just straightforward, competitive pricing

  • Expert RV Matchmakers: Our experienced team listens first and recommends based on your lifestyle and needs

  • Top-Rated Service Departments: Keep your RV running like new with expert maintenance and repair services

  • Family-Owned Since 1966: Our legacy is built on integrity, reliability, and a genuine love for the RV lifestyle

 

What Our Customers Are Saying

Very Nice People!

Stopped in cuz steps wouldn’t retract fully and was having problems with water heater. They were really booked, but took time to help us so we could get on the road again very nice people. - Rae
 
Campers Inn
Location: Merrimack NH
Stock# 100129
To get help now on this RV, call and enter the RV ID if prompted.
RV ID: 2687740#
(enter this ID if prompted)
2025 350G Specifications
Sleeps 5
Slides 3
Length 40 ft 6 in
Ext Width 8 ft 5 in
Ext Height 13 ft 6 in
Int Height 8 ft 5 in
Interior Color DUSK
Hitch Weight 2785 lbs
GVWR 19000 lbs
Dry Weight 14700 lbs
Fresh Water Capacity 140 gals
Grey Water Capacity 52 gals
Black Water Capacity 104 gals
Tire Size ST215/75R17.5 LRH
Furnace BTU 35000 btu
Fuel Capacity 60 gals
Available Beds Queen
Refrigerator Type Stainless Steel
Refrigerator Size 20 cu ft
Cooktop Burners 3
Number of Awnings 2
Axle Weight 7000 lbs
Garage Size 11 ft
LP Tank Capacity 30 lbs
Water Heater Type On Demand
AC BTU 30000 btu
TV Info LED TV; LR 49", Garage 32"
Awning Info 10' and 18' Power with LED Lights
Axle Count 2
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Shower w/Seat
Electrical Service 50 amp
VIN 573FM4226SBB03656
For more information Contact Us

Momentum G-Class 350G Reviews

Be the first to tell other RVers what you think about this RV  Write a Review
Similar RVs and Floorplans

Loading

.

Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.