Toy hauler, side patio, bath and a half, bar seating
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2020 Grand Design Momentum 399TH
UsedStock #115175SB
Listing price
2020 Momentum 399TH
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
Grand Design's Momentum 399TH is a toy hauler that doesn't feel like one once you're inside. The side patio creates an outdoor living area that's genuinely usable, not just a bonus feature, and the apartment-like interior backs that up with a kitchen island, bar seating, and a north/south bed in the front bedroom. The 13-foot garage handles serious gear, and the R40 triple-insulated floor means it's built for more than fair-weather camping. Bath and a half keeps things practical when you've got a full crew, and Grand Design's reputation for fit and finish shows throughout.
Length
43 ft 1 in
Dry weight
15,900 lbs
GVWR
20,000 lbs
Sleeps
3
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
There may be room for price negotiation.
$52,999 – $110,985
This unit has been on the lot for 61 to 90 days.
This unit is ranked 3 of 14 by asking price in this group.
The listing price on this unit has changed 1 time.
See the complete price timeline and the rest of this unit's pricing insights.
America Go RV
Seguin, TX
Sells faster than 56% of Texas RV dealers
Compared with 229 dealers in Texas
Grand Design Momentum toy hauler 399TH highlights:
Dual Entry
Full and Half Bath
Exterior LED TV
13' Separate Garage
Loft
Fold-Down Side Patio
If you are ready to play with your off-road toys, then it's time to hitch up this Momentum fifth wheel toy hauler after loading your toys in the 13' separate garage. You will be able to get cleaned up after getting muddy from the trails in the half bath in the garage or the sunken tub with skylight in the full bathroom up in the master suite. The kids can sit at the kitchen island with bar stools or relax on the theater seats while watching the 49" LED TV and fireplace. The fold-down side patio is going to be your favorite spot when summertime rolls around, and the exterior unobstructed pass-through storage compartment will allow you to bring along some lawn chairs that you can set up on the patio.
With any Grand Design Momentum toy hauler fifth wheel, you will enjoy extraordinary living and extreme playtime with the Weather-Tek insulation for four seasons of protection and a fully enclosed fuel pump station to keep the fun going the whole time. The Tuff-Ply garage flooring is gas and oil resistant, and it includes 2,500-LB flush-mount tie-downs to keep your toys secure while moving down the road. The interior includes color-changing LED accent lighting, a convection microwave, a central vacuum system with tools and a dust pan, and a OneControl 7" touchscreen control panel with app controls so that you can operate many of your RV's functions from wherever you want. Any Grand Design Momentum allows you to keep your active lifestyle no matter where you decide to stay!
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