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2026 Grand Design Momentum 392M
NewStock #21174390
Listing price
2026 Momentum 392M
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
The Grand Design Momentum 392M gives your toys a generous 17-foot garage, with an optional aluminum deck system that turns the rear ramp into an elevated outdoor space. Up front, the living area features a fireplace, LED Smart TV, Rockford Fosgate entertainment system, and a professional four-burner cooktop with a 24-inch oven. Its full bath includes a glass-door shower with a teak bench, while the optional Extreme Lithium Package adds 800 Ah of battery capacity, dual hybrid inverters, and roof-mounted solar panels for extended off-grid stays.
Length
44 ft 2 in
Dry weight
18,114 lbs
GVWR
23,500 lbs
Sleeps
8
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.
$114,999 – $149,989
This unit has been on the lot longer than 120 days.
This unit is ranked 1 of 14 by asking price in this group.
The listing price on this unit has changed 8 times.
See the complete price timeline and the rest of this unit's pricing insights.
Campers Inn RV
Mesa, AZ
Compared with 1,118 dealers nationwide
"This is the manufacturer's minimum allowed advertised price, contact us today for your unbeatable personalized quote."
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, , and a elevate the experience.
Other listings for this floor plan, ranked by condition, model year, distance, price, and listing quality.
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Campers Inn RV is dedicated to helping you start your next adventure with confidence, comfort, and the support of one of the most trusted names in the RV industry.
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