Manufacturer Down Payment
Assistance — $2,000
The all new Momentum G-Class Fifth Wheel is lighter than its brothers without sacrificing any features or functionality. With all of the quality and innovation that our family of Momentum owners love, it’s everything you need and nothing you don’t.
The 2026 Grand Design Momentum G-Class 350G is a luxury fifth wheel toy hauler built for serious adventure and year-round comfort. It features a 14’6″ garage with a half bath, a loft, and patio ramp, plus a spacious living area with theater seating, fireplace, and a modern kitchen. With a private queen bedroom, full bath, and sleeping space for up to six, it blends rugged utility with upscale living. At just under 40 feet long and nearly 13,000 lbs dry, it’s packed with premium features like a tankless water heater, 30K BTU A/C, and all-season insulation.
For sale at Good Life RV in Des Moines, Iowa. Give us a call today! 515-462-9800
Manufacturer Down Payment
Assistance — $2,000
The all new Momentum G-Class Fifth Wheel is lighter than its brothers without sacrificing any features or functionality. With all of the quality and innovation that our family of Momentum owners love, it’s everything you need and nothing you don’t.
The 2026 Grand Design Momentum G-Class 350G is a luxury fifth wheel toy hauler built for serious adventure and year-round comfort. It features a 14’6″ garage with a half bath, a loft, and patio ramp, plus a spacious living area with theater seating, fireplace, and a modern kitchen. With a private queen bedroom, full bath, and sleeping space for up to six, it blends rugged utility with upscale living. At just under 40 feet long and nearly 13,000 lbs dry, it’s packed with premium features like a tankless water heater, 30K BTU A/C, and all-season insulation.
For sale at Good Life RV in Des Moines, Iowa. Give us a call today! 515-462-9800
| Status | AVAILABLE |
| Stock # | PB04564 |
| Location | Des Moines |
| Year | 2026 |
| Make | Grand Design |
| Model | Momentum G-Class |
| Trim | 350G |
| Condition | NEW |
| General | |
|---|---|
| Features | Bath And A Half, Front Bath, Front Bed, Toy Hauler, Washer/Dryer Prep |
| Max Sleeping Count | 6 |
| Hitch Weight (LBS) | 2600 LBS |
| VIN | 573FM4224TBB04564 |
| Length | 39'9"' |
| Dry Weight (LBS) | 12950 LBS |
| Interior Color | Artisan |
| Gross Weight (LBS) | 18000 LBS |
| Type | Fifth Wheel |
| Fresh Water | 98 |
| Gray Water | 52 |
| Black Water | 104 |
| Number Of Slideouts | 3 |
| Promotion | Featured |
| Generators | 6K Watt Generator |
| Cargo Area Dimensions | 14'6" Garage |
| Other Specifications | |
|---|---|
| Unique ID | 874449 |
This website uses cookies to enable essential tools and functionality in effort to enhance the browsing experience for our customers. For more information, read our privacy policy.
