2020 Grand Design Momentum 397TH

Vehicle Photo
  • Was: $54,450
Stock #: 112191A
Tampa, FL
  • Available
  • Pre-Owned
  • Class: Fifth Wheel
  • Length: 0 ft
  • Slides: 3
  • Dry Weight: 15,600
  • Sleeps: 3

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  • Front Bedroom
  • Kitchen Island
  • Loft
  • Outdoor Entertainment
  • Toy Hauler
  • Two Entry/Exit Doors
  • Two Full Baths
Floorplan
  • Available Beds Queen
  • Exterior Height 13 ft 5in
  • Garage Size 12 ft 6in
  • Pin Weight 3,375 lbs
  • Gross Weight 20,000 lbs
  • Dry Weight 15,600 lbs
  • Fuel Capacity 60 gal
  • Tire Size 16
  • Axle Count 3
  • Fresh Water Capacity 155 gal
  • Grey Water Capacity 104 gal
  • Black Water Capacity 104 gal
  • Furnace BTU 40,000
  • Refrigerator Size 18
  • Cooktop Burners 3
  • Shower Type Sunken Tub/Shower
  • Number of Awnings 3
  • Electrical Service 50 amps
  • Washer/Dryer Available Yes
  • TV Info LR 49"" LED TV, BR 32"" LED TV, Garage 32"" LED TV, Ext. LED TV

Get ready to elevate your RV lifestyle with the pre-owned 2020 Grand Design Momentum 397TH—a luxury toy hauler that blends high-end residential comfort with rugged adventure capability. Whether you're hauling motorcycles, ATVs, or simply craving extra space for hobbies and guests, this Momentum delivers the perfect balance of function, style, and freedom.

Built for those who refuse to compromise, the Momentum 397TH features a spacious garage area that easily converts into a versatile living space. With durable tie-downs, a rear ramp door, and convertible seating, this unit is ready for weekend warriors, full-time travelers, and everyone in between. The separate garage also doubles as a private guest suite or entertainment zone, giving you unmatched flexibility on the road.

Step inside the main living area and you’ll find a beautifully designed interior that rivals upscale residential homes. Premium furnishings, theater seating, a large LED TV, and a cozy fireplace create the perfect atmosphere for relaxing after a day of adventure. The fully equipped kitchen boasts solid-surface countertops, stainless steel appliances, a residential-style refrigerator, and ample storage—ideal for cooking everything from quick meals to gourmet dinners.

The front master suite offers a true retreat with a king-size bed, generous wardrobe space, and washer/dryer prep for extended stays. The spacious bathroom includes a large shower, modern fixtures, and thoughtful storage to keep everything organized and comfortable.

Designed with Grand Design’s industry-leading construction quality, the Momentum 397TH includes features like a weather-resistant exterior, superior insulation, and a strong, reliable frame—giving you confidence whether you're camping in the mountains or by the coast. Multiple awnings, exterior entertainment options, and abundant storage make outdoor living just as enjoyable as the interior.

Why buy the 2020 Grand Design Momentum 397TH?
Because it offers luxury, versatility, and durability all in one package. It’s perfect for travelers who want to bring their toys, entertain guests, and enjoy residential-level comfort wherever they go. This is more than an RV—it’s your mobile basecamp for unforgettable experiences.

Why buy from Lazydays RV powered by Campers Inn RV?
You’re not just purchasing an RV—you’re partnering with one of the most trusted names in the industry. Lazydays RV powered by Campers Inn RV is known for exceptional customer service, a wide selection of high-quality units, and a knowledgeable team dedicated to helping you every step of the way. From financing options to service support after the sale, they make your RV journey smooth, easy, and enjoyable.

 

Don’t miss your chance to own a premium toy hauler that’s built for both adventure and relaxation. The 2020 Grand Design Momentum 397TH is ready to take you wherever the road leads—are you ready to go?

†Lazydays strives to ensure the accuracy of the information provided on this website. However, actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing or specifications. Specifications and availability subject to change without notice. Price, length, weight, or any other specifications cannot be relied upon. Buyers should verify and confirm all claims made on the website. Sale price includes all manufacturer discounts and rebates. All prices listed on this site exclude tax, tags and title fees. Applicable government fees, state taxes, dealer fees and emissions testing charges will be added to comply with state vehicle codes. Freight and prep costs are additional and vary by state. Contact Lazydays for complete details.

*90 Days – Payments can be deferred for 90 days with approved credit. Interest accrues from contract date. Financing terms subject to lender approval. Not valid with other offers. Actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing. Specifications and availability subject to change without notice. Document fees vary by location. See dealership for complete details.

**Lazydays believes the specifications on this site supplied by the manufacturer to be correct at the time posted. However, specifications, standard equipment, model availability, options, fabrics, and colors are subject to change without notice. Some equipment may be unavailable when a vehicle is built. Some vehicles are pictured with options, which may be available at extra cost or may not be available on some models. You should verify the equipment that is on all vehicles. If a new vehicle shown on this website is subject to an open safety recall, Lazydays cannot deliver the vehicle to you until the recall repair is completed. This is a requirement of federal law.

***Margaritaville offer valid for a limited time only at Lazydays RV of Tampa. Customers who purchase a new RV or complete a qualified service appointment (appointment must be booked and customer must show for the appointment) are eligible to receive a complimentary 3-day, 2-night stay at Camp Margaritaville RV Resort of Auburndale. Offer valid while supplies last. Promotion is non-transferable, has no cash value, and cannot be combined with other offers or promotions. Limit one promotional stay per customer, per transaction. Resort stay subject to availability and blackout dates may apply. Resort reservation must be made within 30 days of RV purchase or completed service appointment. Valid for Florida residents and legal U.S. residents only, 18 years or older. Additional terms and conditions may apply. Lazydays RV of Tampa reserves the right to modify or cancel this promotion at any time without notice. Void where prohibited by law.