2026 Grand Design Momentum 344M
Toy Hauler · Fifth Wheel Toy Hauler · 39.92 ft · sleeps 6
The 2026 Grand Design Momentum 344M is a toy hauler (fifth wheel toy hauler) built on a Momentum full-frame. At sleeps 6, 39.92 ft long, 15,910 lbs dry, it's positioned for owners who haul motorcycles, ATVs, or bikes.
Floor plan

Photos of the 2026 Grand Design Momentum 344M
Walkthrough video
Video courtesy of RV Video Library on YouTube.
Full specifications
Dimensions
| Length | 39.92 ft |
|---|---|
| Slide-Outs | 3 |
Weights
| Dry Weight | 15,910 lbs |
|---|---|
| GVWR | 19,000 lbs |
Living
| Sleeps | 6 |
|---|---|
| Bunkhouse | No |
Tanks
| Fresh Water | 140 gal |
|---|---|
| Grey Water | 104 gal |
| Black Water | 52 gal |
Amenities
| Outdoor Kitchen | No |
|---|---|
| Theater Seating | No |
| Residential Fridge | No |
| Fireplace | No |
| Four-Season | No |
| Off-Road Capable | No |
Similar Toy Haulers to consider
Other toy haulers in the catalog with comparable size and price.
Frequently asked questions
How many people does the 2026 Grand Design Momentum 344M sleep?
The 2026 Grand Design Momentum 344M sleeps 6.
How long is the 2026 Grand Design Momentum 344M?
The 2026 Grand Design Momentum 344M is 39.92 feet long.
What's the dry weight of the 2026 Grand Design Momentum 344M?
The 2026 Grand Design Momentum 344M has a dry weight of 15,910 lbs and a GVWR of 19,000 lbs.
Where can I buy the 2026 Grand Design Momentum 344M?
Pirka Wakka is a brand-agnostic catalog and doesn't sell RVs. The "Buy on Grand Design" link on this page sends you to the manufacturer's product page — they'll route you to an authorized dealer.
Not sure if the 2026 Grand Design Momentum 344M is right for you?
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