New 2026 Grand Design Momentum 397THS Toy Hauler Fifth Wheel

Ultimate Toy Hauler Luxury
Virtual Tour Featured New Floor Plan
2026 397THS Features and Options
Grand Design Momentum fifth wheel toy hauler 397THS highlights:
  • Dual Entry
  • Two Full Baths
  • Kitchen Island
  • 13' 6" Separate Garage
  • Island with Bar Stools
  • Flip-Up Pet Dish in Garage

 

Load up your toys, your clothes and food and start your adventure as you smoothing tow this fifth wheel to your campsite. You will enjoy the Fast Ramp rear ramp door, the Ram-Air garage vents on both sides, and the 2,500 lb. rated flush-mount tie-downs to keep your toys secure. The main area provides a living and kitchen area with a 49" LED TV and a fireplace, theatre seating and a free-standing dinette, plus full kitchen amenities. There is also a Smart Sink with a removable cutting board, produce strainer and glass rinser you are sure to love. Head up front to use the full bathroom with a one-piece fiberglass shower with a glass door and teak seat and fall quickly to sleep on your own queen bed or choose a king option in the front bedroom. 

 

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 fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. 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, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops!

 

 

Options:
  • 20 CU FT 12V REFRIGERATOR
  • 3RD A/C
  • 3RD A/C PREP
  • 6K WATT GENERATOR
  • AUXILIARY FRESH WATER TANK
  • BEDROOM A/C
  • EXTERIOR PKG
  • GARAGE LED HD TV
  • GARAGE PKG
  • GARAGE SUITE
  • GEN III 3 SEASON DOOR
  • HEAT PUMP A/C
  • KING BED UPGRADE
  • KITCHEN POWER FAN
  • LUXURY INTERIOR PKG
  • MORRYDE 7K INDEPENDENT SUSPENSION
  • OMNICONNECT
  • PATIO CHAIRS
  • REAR ALUMINIUM DECK SYS
  • ROCKFORD FOSGATE STAGE 1
  • RVIA SEAL
  • SAFERIDE
  • SOLAR½ PKG
  • UNDER UNIT LED LIGHT KIT
  • UPGRADED H-RATED TIRES
  • WEATHER-TEK INSULATION PKG
What Our Customers Are Saying

Above and Beyond!

I give this dealership and all the employees there a five out of a five star rating. Everyone went above and beyond. They were so helpful with everything. I couldn't be happier with the service there! - Jon
Price: $200,978
Happy Daze
Location: Ripon
Stock# 70900
To get help now on this RV, call and enter the RV ID if prompted.
RV ID: 3346316#
(enter this ID if prompted)
2026 397THS Specifications
Sleeps 4
Slides 3
Length 44 ft 2 in
Ext Width 8 ft 5 in
Ext Height 13 ft 6 in
Int Height 8 ft 5 in
Interior Color ARTISAN
Hitch Weight 3375 lbs
GVWR 22500 lbs
Dry Weight 15600 lbs
Fresh Water Capacity 140 gals
Grey Water Capacity 104 gals
Black Water Capacity 104 gals
Tire Size 17.5"
Furnace BTU 35000 btu
Fuel Capacity 60 gals
Available Beds Queen
Refrigerator Type 12V Stainless Steel
Refrigerator Size 20 cu ft
Cooktop Burners 3
Number of Awnings 3
Axle Weight 7000 lbs
Garage Size 13 ft 6 in
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 14', 12' & 10' 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
VIN 573FM4731TBB04796
For more information Contact Us

Momentum 397THS Reviews

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

Loading

.

Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.