New 2025 Momentum 399TH Toy Hauler Fifth Wheel

* The images displayed may represent all Momentum models

Shop Momentum 399TH For Sale

Previous Inventory Unit
Next Inventory Unit

Momentum 399TH Description

+ More

Momentum 399TH Specifications

Sleeps 5
Slides 3
Length 43 ft 1 in
Ext Width 8 ft 5 in
Ext Height 13 ft 6 in
Int Height 8 ft 5 in
Exterior Color Onyx, Onyx w/; Blue, Red, Orange. Sterling, Sterling w/; Blue, Red, Orange, Red, whit, and Blue
Hitch Weight 3400 lbs
GVWR 22500 lbs
Dry Weight 15900 lbs
Fresh Water Capacity 140 gals
Grey Water Capacity 104 gals
Black Water Capacity 104 gals
Tire Size 17.5"
Furnace BTU 40000 btu
Fuel Capacity 60 gals
Available Beds Queen
Refrigerator Type 12V Stainless Steel
Refrigerator Size 20 cu ft
Cooktop Burners 3
Shower Size 48" x 30"
Number of Awnings 2
Axle Weight 7000 lbs
Garage Size 13 ft
LP Tank Capacity 30 lbs
Water Heater Type On Demand
AC BTU 30000 btu
TV Info LR 49" LED TV, BR LED TV, Garage 32" LED TV
Awning Info 10' and 17' Power w/LED Lights
Axle Count 3
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Shower w/Seat
Electrical Service 50 amp

Momentum 399TH Reviews

Be the first to tell other RVers what you think about this RV  Write a Review

Loading

ManuFacts

In 2012, we started with a blank canvas to pursue that better way, a different way, than what had been done before. A company whose culture requires a long-term, personal connection with our customers, employees, and dealers – that company is Grand Design RV. Our business model of doing the right thing has led us to unparalleled years of growth.
 
Our local workforce has been hand-picked and has an excellent reputation for second-to-none industry craftsmanship, and our CEO and Senior Management actively work with the production facilities to help build the team and develop products.
 
At Grand Design we've raised the quality bar by putting every unit through a series of quality inspection gates during the manufacturing process. Once completed, the unit undergoes a comprehensive “final finish” inspection. Every one of our coaches is shipped to a PDI (Pre-Delivery Inspection) area where they are put through a rigorous 300+ point inspection checklist before being shipped to our dealers.  And, we back every one of our coaches with a 3-year limited structural warranty.  
 
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. We strive for nothing less than customers for life and we would be honored to personally welcome you to the Grand Design RV family!