2022 Grand Design Momentum 399TH

Used Fifth Wheel in Mesa, Arizona, 85213

$74,998.00
Show All 64 Photos
Used 2022 Grand Design Momentum 399TH available in Mesa, Arizona
2022 Grand Design Momentum 399TH - Used Fifth Wheel For Sale by General RV Center in Mesa, Arizona
2022 Momentum 399TH by Grand Design from General RV Center in Mesa, Arizona
Used 2022 Grand Design Momentum 399TH available in Mesa, Arizona

Unit Specs

  • Stock #348389
  • Year2022
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum
  • Floorplan399TH
  • Type Fifth Wheel
  • ConditionUsed
  • Length43' 0"
  • Height13' 0"
  • VIN573FM4538N1120616
  • MSRP $84,998.00
  • Sale Price $74,998.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Sleeps7
  • Slideouts3
Grand Design Momentum fifth wheel toy hauler 399TH highlights: Fold-Down Side Patio 13' Garage Bath and a Half Dual Entry Island with Bar Stools 60 Gallon Fuel Tank Get ready for a lot of fun when you head out to the off-road park, a special event, or a long trip with your toys! You will love the garage with the Fast Ramp rear ramp door, the Ram-Air garage vents on both sides, the 2,500 lb. rated flush-mount tie-downs and the protective diamond plate on the garage sidewalls. This area can become a bedroom or an extra living area if you want to add Happi-Jac rollover sofas/table with top bed option, plus you will already have a half bath for convenience, an LED TV and storage for your gear. And the fold-down side patio offers an LED TV, storage and a great place to relax outdoors above ground. The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the thermal roof design, the full-laminated walls, the triple insulated garage floor in most toy haulers, the insulated gooseneck and the Rail-Tite underbelly seat. The MORryde CRE3000 suspension system and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, raised panel hardwood cabinet doors with hidden hinges, a sofa with headrest and removable swivel tables which include heat, massage and LED lighting package, and a central vacuum system with tools and dust pan. Start your extreme playtime now with a Momentum!

View a video of this 2022 Grand Design Momentum 399TH RV on YouTube!

2022 Grand Design Momentum 399TH Features


2022 Grand Design Momentum 399TH Literature


2022 Momentum Brochure PDF 2022 Momentum Brochure 1
Seller Info

General RV Center

2260 E Main Street
Mesa, AZ 85213

Member Since 2025

See 20 Reviews

Unit Specs

  • Stock #348389
  • Year2022
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum
  • Floorplan399TH
  • Type Fifth Wheel
  • ConditionUsed
  • Length43' 0"
  • Height13' 0"
  • VIN573FM4538N1120616
  • MSRP $84,998.00
  • Sale Price $74,998.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Sleeps7
  • Slideouts3

Estimated Payment-

Interest Rate % *(W.A.C.)
Term Years
Down Payment $
*W.A.C. = With approved credit

Email Seller

Request More Info on this 2022 Grand Design Momentum 399TH Offered for sale by General RV Center
General RV Center
General RV Center

2260 E Main Street
Mesa, AZ 85213

Phone: Click to Call

campground and travel trailer

Everything about RV life delivered directly to your inbox. The hottest RVs, tips & tricks, recipes, travel destinations, new gadgets & much more!

Child Eating s'mores
2022 Grand Design Momentum 399TH Gallery

Click on images to see them enlarged in a slideshow format

Used 2022 Grand Design Momentum 399TH available in Mesa, Arizona
2022 Grand Design Momentum 399TH - Used Fifth Wheel For Sale by General RV Center in Mesa, Arizona
2022 Momentum 399TH by Grand Design from General RV Center in Mesa, Arizona
Used 2022 Grand Design Momentum 399TH available in Mesa, Arizona