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
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
| Stock # | PB04564 |
| Location | Des Moines |
| Year | 2026 |
| Make | Grand Design |
| Model | Momentum G-Class |
| Trim | 350G |
| Condition | New |
| Secondary Class | Toy Hauler |
| Dry Weight (LBS) | 12950 LBS |
| Hitch Weight (LBS) | 2600 LBS |
| Max Sleeping Count | 8 |
| Category Class | Fifth Wheel |
| Interior Color | Artisan |
| VIN | 573FM4224TBB04564 |
| Length (FT/IN) | 39' 9" |
| Gross Weight Rating (LB/KG) | 18000 LBS |
| Total Fresh Water Tank Capacity (GAL/L) | 98 |
| Total Gray Water Tank Capacity (GAL/L) | 52 |
| Total Black Water Tank Capacity (GAL/L) | 104 |
| Number Of Slideouts | 3 |
| General |
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