2026 Grand Design Momentum 344M vs 396DB
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Key differences
Both are 2026 Fifth-wheel toy hauler models from the Grand Design Momentum line. Here's how they differ, from manufacturer specifications.
- The 396DB is 6′ 5″ longer: 46′ 4″ vs 39′ 11″.
- The 344M is 3,190 lb lighter unloaded: 15,910 vs 19,100 lb.
- The 396DB has a 4,500 lb higher GVWR: 23,500 vs 19,000 lb.
- The 344M has a 260 lb lighter hitch weight: 3,500 vs 3,760 lb.
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YOUR SHORTLIST
Floorplan
PRICING
Manufacturer price (USD)
Not verified
Not verified
Lowest tracked dealer price (USD)
No recently verified dealer price
No recently verified dealer price
Est. monthly payment (USD)
No verified price to estimate from
No verified price to estimate from
DIMENSIONS & WEIGHTS
Exterior length
39′ 11″
46′ 4″
Garage length
11′ 0″
10′ 10″
Exterior width
—
—
Exterior height
13′ 6″
13′ 6″
Shipping / unloaded weight
15,910 lb
19,100 lb
GVWR
19,000 lb
23,500 lb
Listed cargo capacity
—
—
Listed hitch weight
3,500 lb
3,760 lb
LIVING & SLEEPING
Sleeping capacity
—
—
Slide-outs
—
—
Main bed
60 x 80 in queen bed
60 x 80 in queen bed
Bunk beds
Not verified
Not verified
Dinette
Not verified
Not verified
Bathroom
Not verified
Not verified
Refrigerator
Not verified
Not verified
TANKS & EVERYDAY FEATURES
Fresh water
—
—
Gray water
—
—
Black water
—
—
Awning length
10′ 0″ & 18′ 0″
14′ 0″ & 12′ 0″ & 11′ 0″
Shore power / electrical service
Not verified
Not verified
Solar equipment
Not verified
Not verified
Outdoor kitchen
Not verified
Not verified
Washer/dryer prep
Not verified
Not verified
Microwave
Not verified
Not verified
Cooktop
Not verified
Not verified
Air conditioning
Not verified
Not verified
Electric fireplace
Not verified
Not verified
Backup camera
Not verified
Not verified
Propane tanks
—
—
Tire size
Not verified
Not verified
SOURCES & VERIFICATION
Weight basis
Manufacturer average unloaded vehicle weight of the standard build
Manufacturer average unloaded vehicle weight of the standard build
Source checked
2026-10-29 Manufacturer ↗
2026-10-29 Manufacturer ↗
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Manufacturer floorplan images © their respective manufacturers. Specs checked October 19, 2026; exact-unit labels and production options may differ. “Not verified” or a dash means we have no confirmed value. “Not listed” means the applicable manufacturer equipment was checked but does not mention the feature; it does not mean “No.” “Conflicting data” means manufacturer entries disagree. “Optional” equipment is available but is not confirmed as standard. Camera prep does not confirm an installed camera. Weights are kept separate: unloaded weight, GVWR, cargo capacity, and hitch weight. Confirm every specification for the exact model year and configuration with the manufacturer. This tool does not establish towing compatibility.
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