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Vehicle Details
Ad ID: 100385
Type: Pre-Owned
Stock #: 437602
Price: $89,900
Phone: 833-290-6424
Category: TOY HAULER
Make: Grand Design
Model: Momentum 399TH
Year: 2018
Mileage: na
Length: 43
City: St. George
State: UT
Slide Out: Equipped with 3 Slide Outs
Features Include
Fresh Water Capacity:  157   Sleeping Capacity:  7   Fuel Capacity:  60
  No of A/C Units:  3        
Contact us and ask for: Sales Department   
Ad Description
ST. George, UT.

2018 Grand Design - Momentum Floorplan: 399TH (Toy Hauler)


Grand Design Momentum 399TH toy hauler highlights:

13' Garage

Fold-Down Side Patio

Dual Entry

Bath and a Half

Kitchen Island


Exterior LED TV

Dual Enclosed Fuel Station

Spray Port

If your off-road toys have been calling your name, hitch up this Momentum 399TH fifth wheel toy hauler after loading your toys in the 13' garage. You will be able to clean up after getting muddy from the trails in the half bath in the garage or the full bathroom next to the bedroom. The kids can sit on the bar stools at the kitchen island while you cook, or relax on the dinette and theater seats while watching the 49" LED TV and fireplace. There are several options to choose from, and many more features to enjoy such as the dual entry doors, fold-down side patio with LED TV, and exterior unobstructed pass-through storage, plus more!

Sleeps 7

Slides 3

Length 39 ft

Ext Width 8 ft 5 in

Ext Height 13 ft 5 in

Interior Color MOCHA

Hitch Weight 3400 lbs

Gross Weight 20000 lbs

Dry Weight 15900 lbs

Fresh Water Capacity 157 gals

Grey Water Capacity 104 gals

Black Water Capacity 104 gals

Tire Size 16"

Furnace BTU 40000 btu

Fuel Capacity 60 gals

Refrigerator Type 4 Door

Refrigerator Size 18 cu ft

Convection Cooking Yes

Cooktop Burners3Number of Awnings2

Axle Weight 7000 lbs

Garage Size 13 ft

LP Tank Capacity 30

Water Heater Capacity 12 gal

Water Heater Type Gas/Electric

AC BTU 43500 btu

TV Info LR 49" LED, BR 32" LED, Garage 32" LED, Ext. LED

Awning Info 14' & 16' Power

Axle Count 3

Number of LP Tanks

Shower w/Seat

Electrical Service 50 amp


•LED Lights •3 TV's •Automatic Leveling System •Skylight •Electric power awnings •Enclosed patio party deck •Rear Ladder •Sleeps 7 •3 AC Units •Day/Night Window shades •AM/FM Radio •Outdoor Speakers •Tow Package •Non-Smoking •2 Awnings •Surround Sound •Microwave •Convection Oven •King Bed •Outdoor Entertainment Center •CD •Theater seating •Outdoor TV