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Vehicle Details
Ad ID: 99845
Type: Pre-Owned
Stock #: 442705
Price: $109,000
Phone: 833-290-6424
Category: TOY HAULER
Make: Grand Design
Model: Momentum 399TH
Year: 2021
Mileage: 5000
Length: 43
City: _____________
State: TX
Slide Out: Equipped with 3 Slide Outs
Features Include
Fresh Water Capacity: 155 Sleeping Capacity: 7 Fuel Capacity: 60
No of A/C Units: 3        
Contact us and ask for: Sales Department   
Ad Description
Frisco, TX.

2021 Grand Design - Momentum Floorplan: 399TH (Toy Hauler)


2021 Grand Design 399TH. $109,000 - Highly desired model with side patio with extras! Grand Design has combined the best things about a luxury fifth wheel and the functionality of a toy hauler to create one incredible RV! Also selling our new Silver 2020 F450 Dually for $83,450 inquire if interested! You’ll save $20,000 on this top-of-the-line rig with accessories thrown in.

UPGRADES: washer/dryer, slide toppers, Nautilus on-demand water heater, 3rd AC unit in Garage/Guest bedroom.

INCLUDED: black tank hoses, Zero G water hoses, antifreeze water hose, patio mat, special tools for rig, tripod, chocks, tire pressure monitoring system, Furion side and rear camera system.

FEATURES: slam-latch baggage doors, frameless tinted windows, exterior security lights, and exterior entertainment center, 4 large screen TV’s with Roku built in, power patio awning with integrated LED lighting, generator, and self-leveling systemLuxury interior: LED ceiling lighting, blue LED accent lighting, the Mocha décor, and beautiful raised panel hardwood cabinet doors with hidden hinges. Deluxe kitchen with solid surface countertops, huge 18 cu refrigerator/freezer, 3-burner stainless steel stove top with oven below, and a 30” stainless steel microwave, and the double bowl sink with sink covers built into the spacious kitchen island.Super sofa with theater style seating for 5 to enjoy the LED HDTV on swivel arm located above the fireplace! Also located in the main living room is a twin-loft bed located above the garage that is accessible from the living room!King-sized bed with memory foam mattress topper pillow top mattress, large closet slide, tv and lots of storage.The 13’ garage plenty of space for friends and family with the Happi-Jac electric bunk system with removable sofas. Garage also has attached patio and half bathroom.Main bath: porcelain toilet, the one-piece fiberglass shower with textured glass door and built in shower seat, the freestanding decorative bowl sink, and mirrored medicine cabinet.

2020 Ford F450 Lariat, Silver - $84,900 Only 5,000 miles

ADDED: 32,000 Pound Reese Hitch, Better Built Tool Box, Tonneau Bed Cover Fitted to outfitter switches, On-Board Air Compressor, Firestone Ride Right Air Bags, Klein Train Horns, AND MUCH MORE!


Length 43.08 ft. (517 in.)

Height 13.42 ft. (161 in.)


Dry Weight 15,900 lbs.

Payload Capacity 4,100 lbs.

GVWR 20,000 lbs.

Hitch Weight 3,400 lbs.

Holding Tanks

Total Fresh Water Tank Capacity 155.0 gal.

Total Gray Water Tank Capacity 104.0 gal.

Total Black Water Tank Capacity 104.0 gal.

Propane Tank(s)

Number Of Propane Tanks 2

Total Propane Tank Capacity 14.2 gal.

Cargo Area Dimensions

Cargo Area Length 13 ft. (156 in.)

Cargo Area Width 8 ft. (96 in.)

Cargo Area Rear Ramp Door

Cargo Area Auxiliary Gas Tank

Cargo Area Auxiliary Gas Tank Capacity 60.0 gal.


Sleeping Count 7

Number Of Bunk Beds 1

Number Of Queen Size Beds 2

Number Of King Size Beds 1

Number Of Convertible / Sofa Beds 1

Ask about the package deal for BOTH the truck and toyhauler.


•Generator •Washer/Dryer •3 Slide-Outs •Outdoor Entertainment Center •CD •Theater seating •3 Power Awnings •Outdoor Speakers •Hydraulic Leveling Jacks •Sleeps 7 •Automatic Leveling System •Island Kitchen •AM/FM Radio •Enclosed back & side patio party decks •LED Lights •Tow Package •Non-Smoking •3 AC Units •Day/Night Window shades •Microwave •Back Up Camera •4 TV's •No Pets •Side Camera •Surround Sound •Outdoor Speakers