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2025 Grand Design Momentum 397TH
NewStock #14819
Listing price
2025 Momentum 397TH
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
The 397TH earns its reputation as one of the more luxurious toy haulers on the market. Triple axles with 17.5" H-rated tires handle the nearly 20,000 lb max weight with confidence, while 3,800+ lbs of cargo capacity means you're not leaving anything behind. Inside, the garage space transforms around a massive 5-person super sofa, and the front bedroom suite feels genuinely residential rather than like an afterthought. Grand Design included a kitchen island and residential stove, and the dual-pane windows are a real-world touch that owners specifically call out for eliminating condensation issues. Grand Design's warranty reputation is a known selling point here. Owners consistently describe claims being handled with minimal friction.
Length
44 ft 2 in
Dry weight
15,600 lbs
GVWR
20,000 lbs
Sleeps
4
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
The listing price on this unit has changed 2 times.
See the complete price timeline and the rest of this unit's pricing insights.
Trailer Hitch RV
Nipomo, CA
Sells slower than 76% of California RV dealers
Compared with 58 dealers in California
FINANCE INCENTIVE PRICE
2025 Grand Design Momentum 397THS,
THIS UNIT IS EQUIPPED WITH THE FOLLOWING OPTIONS:
Momentum Interior Package
Momentum Exterior Package
Momentum Garage Package
Weather-Tek Insulation Package
Under Unit LED Light Kit
Bedroom A/C
Upgraded Cooper H-Rated Tires w/ 17.5" Wheels (Triple Axle)
Exterior Entertainment Center
3rd A/C Prep
Auxiliary Fresh Water Tank
20 Cu. Ft. 12V Refrigerator (+ Inverter Prep, 330W Solar Panel, 50 Amp Controller, Bluetooth Module and Two (2) Dock Ports)
TraviFi On-Board WiFi Ready
SafeRide RV Roadside Assistance
RVIA Seal
3rd Awning (Main Slide)
King Bed Upgrade
Super Sofa Upgrade
Rockford Fosgate Stage 1 Stereo-500 Watts, Int/Ext Speakers w/10" Powered Sub
Gen II 3 Season Door with Sliding Windows
3rd A/C
Momentum Garage Suite Featuring P2K Bed Lift
Rear Aluminum Deck System w/Rear Power Awning
Momentum Patio Chairs
Solar + Package (One (1) Additional 330W Panel & 2000W Inverter)
7K Axle w/ABS Drum Brakes (Triple Axle)
Other listings for this floor plan, ranked by condition, model year, distance, price, and listing quality.
Winterization
Included Packages and Options:
2025 Momentum Luxury Toy Hauler 397THS
Dusk
Momentum Interior Package
Momentum Exterior Package
Momentum Garage Package
Weather-Tek Insulation Package
Under Unit LED Light Kit
Bedroom A/C
Upgraded Cooper H-Rated Tires w/ 17.5" Wheels
Exterior Entertainment Center
3rd A/C Prep
Auxiliary Fresh Water Tank
20 Cu. Ft. 12V Refrigerator + Inverter Prep, 330W Solar Panel, 50 Amp Controller, Bluetooth Module and Two Dock Ports
TraviFi On-Board WiFi Ready
SafeRide RV Roadside Assistance
RVIA Seal
3rd Awning
King Bed Upgrade
Super Sofa Upgrade
Rockford Fosgate Stage 1 Stereo - 500 Watts, Int/Ext Speakers w/10" Powered Sub
Gen II 3 Season Door with Sliding Windows
3rd A/C
Momentum Garage Suite Featuring P2K Bed Lift
Rear Aluminum Deck System w/Rear Power Awning
Momentum Patio Chairs
Solar + Package
7K Axle w/ABS Drum Brakes
Winterization
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. You will surely appreciate the full bathroom and LED TV, plus the option to add Happi-Jac rollover sofas/table with a top bed. 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 new 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.
