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2018 Grand Design Momentum 399TH

Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803
Image for Momentum 399TH Stock Number GDM1803

399TH Specifications

Stock Number GDM1803
Condition New
Exterior Color White
Interior Color Mocha
Sleeping Capacity 7
Slides 3
Awnings 3
Length 43' 1"
Width 8' 0"
Height 13' 5"
Fresh Water 117 Gallons
Grey Water 104 Gallons
Black Water 104 Gallons
Water Heater 12 Gallons
Tongue Weight 3400 lbs.
GVWR 20000 lbs.
Dry Weight 15900 lbs.
MSRP $110,546.00

Although our prices are always very competitive, due to manufacturer pricing regulations we cannot always advertise the best price we have to offer. For the best deals in the country click ‘Get More Information’ or give our sales professionals a call at (866) RV-CENTER.


Image for Momentum 399TH Stock Number GDM1803

2018 Momentum 5th Wheel Toy Hauler / 13’ Garage Layout


  • Mocha Interior Décor
  • Extended Stay Approved
  • Correct Track Suspension Alignment System
  • Hydraulic Front Landing Gear
  • Under Unit Blue LED Light Kit
  • Three Burner Range with Oven and Exhaust Fan
  • Convection Microwave Oven
  • 39” LED TV in the Living Room
  • 24” LED TV in the Bedroom
  • AM/FM/CD/DVD/Bluetooth Stereo System
  • Power Fan with Rain Sensor in Bathroom & Garage
  • 50 AMP Service / 75 AMP Converter
  • All in One Exterior Utility Center / 12V Battery Disconnect
  • Enclosed Fuel Pump Station with Single Fuel Tank
  • Crank Up Antenna / Spare Tire / Roof Ladder
  • Prep for Generator / Prep for Furrion Solar Hook up
  • Prep for Satellite Hook Up / Prep for Washer and Dryer
  • Loft Bunk Mattress / Ladder
  • Garage Area has Tuff Ply Gas & Oil Resistant Floor Decking
  • Diamond Plate on Garage Sidewalls / Bunk Ladder
  • 2,500 lbs Rated Flush Mount Tie Downs
  • Rear Cargo Loading & Unloading Lights
  • 39” LED TV / Exterior Speakers / GFI Outlet
  • King Size Bed / 12V Tank Heaters / 18’ cu ft Refrigerator
  • 6 Point Hydraulic Leveling System / 2nd 13,500 btu Air Conditioner
  • Garage Screen Pull Down Wall / Prep for Generator
  • Convection Microwave Oven / Happi Jac Electric Bunk System
  • Rear Aluminum Deck System with Rear Box Awning
  • Momentum Patio Steps / Exterior Entertainment Center
  • 5.5 Onan Gas Generator


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