New 2026 Grand Design Momentum M-Class 392M Toy Hauler Fifth Wheel

You’ll also appreciate washer and dryer prep, an optional half bath, and a flip-up pet dish, making this toy hauler as functional as it is pet-friendly.
Toy Hauler Bed Queen
2026 392M Features and Options

NEW 2026 Grand Design Momentum 392M Fifth Wheel Toy Hauler

Adventure meets luxury in the New 2026 Grand Design Momentum 392M, a high-performance fifth wheel toy hauler designed for those who want to bring their toys—and their comforts—along for the ride. With a massive 17' separate garage, upscale residential finishes, and true four-season capability, this Momentum is built for extreme living without compromise.

The dedicated garage space is ready for action with an adjustable tie-down system, triple-insulated garage floor, two LiftSuite Systems, and an overhead loft bed for additional sleeping or storage. You’ll also appreciate washer and dryer prep, an optional half bath, and a flip-up pet dish, making this toy hauler as functional as it is pet-friendly. The ramp door converts to a patio, creating the ultimate outdoor hangout once the toys are unloaded.

Inside the main living area, dual opposing slides create an open, residential feel. Relax on the L-shaped reclining sofa across from the 50" TV, or take advantage of the hybrid desk/dinette for working on the road. The spacious kitchen is a standout, featuring expansive countertops, a 20 cu. ft. refrigerator, and a large pantry—perfect for extended trips or full-time use.

Up front, the private master bedroom offers a peaceful retreat with a queen bed (with optional king upgrade), a slide-out for added floor space, and ample drawers and storage to keep everything organized.

Built to handle rugged adventures and all-season travel, the Momentum 392M features a fully enclosed and heated underbelly, 5-sided aluminum cage, and Grand Design’s Weather-Tek Package with a Stealth A/C system. The MORryde CRE3000 suspension, rubber pin box, and upgraded axle hangers ensure confident towing and a smooth ride from pavement to trailhead. Inside, premium touches like solid surface countertops, hardwood cabinet doors with hidden hinges, color-changing LED accent lighting, and a central vacuum system elevate the experience.

Key Highlights

  • 17' separate garage with adjustable tie-downs

  • Ramp door with patio functionality

  • Overhead loft bed and dual LiftSuite Systems

  • L-shaped reclining sofa and 50" TV

  • Hybrid desk/dinette for work or dining

  • Queen bed with optional king upgrade

  • Washer/dryer prep and optional half bath

  • Four-season construction with Weather-Tek Package

  • MORryde CRE3000 suspension for smooth towing

Why Buy from Little Dealer Little Prices
At Little Dealer Little Prices, we make it easy to step into the RV that fits your lifestyle. With competitive pricing, expert staff, and a massive inventory of Grand Design models, we’re committed to helping you get more adventure for your money.

Inventory images may be shown. Colors and specifications may vary. Call for details.

 
 
What Our Customers Are Saying

Absolutely amazing and so kind!

Absolutely amazing and so kind! We have a hybrid travel trailer and we were getting tossed around traveling from the Denver area to Miles City Mt. During the trip we had a mishap with an hidden and illplaced clearance bar that resulted in roof damage and antenna damage. We called them from Douglas, Wy to see if they could at least install an anti-sway system. They were ready for us the minute we pulled - Lindsay
Price: $180,893
You Save: $25,898
Sale Price: $154,995
Campers Inn
Location: Mesa, AZ
Stock# 21174390
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RV ID: 3368852#
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2026 392M Specifications
Sleeps 8
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
Hitch Weight 3650 lbs
GVWR 23500 lbs
Dry Weight 18114 lbs
Fresh Water Capacity 140 gals
Grey Water Capacity 104 gals
Black Water Capacity 52 gals
Tire Size ST215/75R17.5 LRH
Furnace BTU 35000 btu
Fuel Capacity 60 gals
Number Of Bunks 2
Available Beds Queen
Refrigerator Type 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 17 ft
LP Tank Capacity 30 lbs
Water Heater Type Tankless
AC BTU 45000 btu
TV Info LED TV; LR 49", Garage 32"
Awning Info 16' and 18' Power with LED Lights
Axle Count 3
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Shower w/Seat
Electrical Service 50 amp
VIN 573FM4839TBB04401
For more information Contact Us
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