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New 2021 Grand Design Momentum 399TH

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2021 399TH Features and Options
Contact Affinity RV at 1-800-756-2007 and start your RV dreams today!
Grand Design Momentum 399TH toy hauler highlights:
  • Dual Entry
  • Kitchen Island
  • Exterior LED TV
  • Dual Enclosed Fuel Station
  • Spray Port

 

If you are ready to play with your off-road toys, hitch up this Momentum 399TH fifth wheel toy hauler after loading your toys in the 13' garage. You will be able to get cleaned 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, 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!

 

With any Momentum toy hauler fifth wheel you will enjoy extraordinary living with 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 includes 2,500 lb. rated flush-mount tie-downs to keep your toys secure while moving down the road. The interior includes a sofa with headrest and removable swivel table, a convection microwave, a central vacuum system with tools and a dust pan, and a satellite/solar roof access channel to mention a few highlights.  Any Grand Design Momentum allows you to keep your active lifestyle no matter where you decide to stay!

What Our Customers Are Saying

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We highly recommend Affinity RV. Sales and service both a pleasure to work with.
July 25, 2020 - Greg from Tucson, AZ
Location: Prescott, AZ
Stock# 0030110
Location: Prescott, AZ
Stock# 0030110
Exterior Color: Burnt Orange, Silver, Blue, Burgundy, White Pearl
Interior Color: Mocha, Oakley
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2021 399TH Specifications
Sleeps 7
Slides 3
Length 43 ft 4 in
Ext Height 13 ft 5 in
Interior Color Mocha, Oakley
Exterior Color Burnt Orange, Silver, Blue, Burgundy, White Pearl
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
Number Of Bunks 1
Available Beds Queen
Refrigerator Size 18 cu ft
Convection Cooking Yes
Cooktop Burners 3
Number of Awnings 2
Axle Weight 7000 lbs
Garage Size 13 ft
LP Tank Capacity 30 lbs
Water Heater Capacity 12 gal
Water Heater Type Gas/Electric
AC BTU 30000 btu
TV Info LR 49" LED, BR 32" LED, Garage 32" LED, Ext. LED
Awning Info 14' & 16' Power
Axle Count 3
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Shower w/Seat
Electrical Service 50 amp
For more information, call us at 928-445-7910 or Contact Us
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ManuFacts
Grand Design Logo
Thank you for taking the time to look at Grand Design RV.  We would like to share some insights into what sets Grand Design RV Company apart from all other RV manufacturers and why this difference is important to you.   We were part of the original ownership team that led a top RV Manufacturer to become the largest travel trailer and fifth wheel company in the world.  While proud of our accomplishments at this company,  it became difficult to stay in touch with the needs of our customers, employees and ultimately the products we built.  In 2011, we set out to pursue our dream and re-establish the personal connection we had enjoyed with customers and dealers.  The result is Grand Design RV Company.  Starting with a blank canvas, we were able to do things differently than what had been done before. 
 
After achieving unparalleled years of growth, Grand Design formed an alliance with one of the industry's most iconic brands...Winnebago. Operating as an independent business within Winnebago Industries provides additional financial stability and enables us to continue Grand Design's unique way of doing business for our current and future customers.
 
LONG TERM VALUE Everything we do at our company is designed to build long term value in what we offer our customers, “more features and superior value for your dollar.” 
 
CUSTOMER FOCUS Our focus (from the very first day we opened our doors) revolves around our customers.
 
STAYING CONNECTED Magic happens when the President and Senior Management are all actively working in the production facilities to help build the team and develop products.
 
EXPERIENCED WORKFORCE Our local workforce has been hand-picked, and has an excellent reputation for quality craftsmanship that is second to none.
 
CLASS LEADING WARRANTY  We back every one of our coaches by a 3-year limited structural warranty.
 
RAISING THE QUALITY BAR   We put every Grand Design unit through a series of quality inspection gates during the manufacturing process.  Once completed, the unit undergoes a comprehensive final finish inspection.  From here, most manufacturers ship their units on to the dealer for retail sale.  Not Grand Design...Every one of our units are shipped to a separate PDI (Pre-Delivery Inspection) location where they are again put through a 280+ point inspection process.  It is only after this that we deem a unit ready to ship to our dealers.    
 
SUPERIOR SERVICE  We deliver the highest quality in the industry, but anything built by humans can be subject to issues.  It’s how those issues are addressed that stands out with Grand Design.  Don’t just take our word for it, visit the owners page on Facebook (Grand Design RV Owners) and see for yourself how we take care of our customers after the sale.  An informed customer will be a Grand Design customer!
 
At Grand Design our goal is simple...Continue leading the industry with quality products while improving the customer's RV experience before, during, and after the sale.
Affinity RV is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual units on our lot. Please contact us @928-445-7910 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.