Toy hauler
2027 Grand Design Momentum 399M
Compare the published specs, check the factory floorplan and save this RV for a viewing.
Published specs · checked 2026-10-13
- Model year
- 2027
- Floorplan
- 399M
- Overall length
- 44 ft 10 in
- Exterior height
- 13 ft 6 in
- Exterior width
- Not listed
- GVWR
- 23,500 lb
- Unloaded weight
- 19,170 lb
- Dry hitch weight
- 3,406 lb
- Published sleeping capacity
- 5
- Published MSRP
- $216,567
- Fresh water
- 140 US gal
- Gray tank
- 104 US gal
- Black tank
- 52 US gal
- Published garage length
- 12 ft 6 in
Published specs can change with options and production dates. Check the weight label and measurements on the unit you view. Sleeping capacity is separate from belted travel seats. Unloaded and dry hitch weights are not loaded travel weights.
Manufacturer specification source ↗