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2026 Grand Design Momentum 392M
NewStock #358290
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
45 ft
Dry weight
18,062 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.
There may be room for price negotiation.
$114,999 – $149,989
This unit has been on the lot for 91 to 120 days.
This unit is ranked 6 of 14 by asking price in this group.
General RV
Ashland, VA
Sells faster than 86% of US RV dealers
Compared with 1,118 dealers nationwide
The Grand Design Momentum 392M is a luxury fifth wheel toy hauler built for outdoor enthusiasts who want premium comfort alongside serious hauling capability. The 17' separate garage provides ample space for your toys and features an adjustable tie-down system, overhead loft bed, washer/dryer prep, and an optional half bath for added convenience. In the main living area, dual opposing slide-outs create an open and inviting space with an L-shaped reclining sofa, theater seating, and a hybrid desk/dinette, all positioned around the entertainment center with a fireplace. The center kitchen is designed for extended stays, offering a large countertop, 20 cu. ft. refrigerator, pantry, and full appliance package for easy meal prep while on the road.
Up front, the private master bedroom includes a queen bed slide-out with the option to upgrade to a king, along with ample wardrobe and drawer storage. The full bathroom features a spacious shower with a built-in seat and dual sliding doors for easy access. Built for year-round travel, the Momentum lineup includes a heated and enclosed underbelly, insulated garage floor, and heavy-duty aluminum cage construction. With premium features like MORryde suspension, solid-surface countertops, central vacuum system, and a rear ramp that converts to a patio, the 392M delivers the perfect combination of rugged capability and residential luxury.
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