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

Bath and a Half Generator
2026 392M Features and Options

Grand Design Momentum M-Class toy hauler 392M highlights:

  • L-Shaped Sofa with Recline
  • Queen Bed
  • Overhead Loft Bed
  • Ramp Door/Patio

 

This toy hauler with a 17' separate garage will be perfect for your outdoor adventures. There is an adjustable tie-down system to keep your gear secure, an overhead loft bed, plus an optional half bath. And two optional Liftsuite Systems can be added if you need more sleeping space. There is also washer and dryer prep here, along with a flip-up pet dish for your furry friends. The chef will love the large kitchen countertop for more meal prep space, and there is a 20 cu. ft. refrigerator and pantry for food storage. You can get comfy on the L-shaped sofa across from the 50" TV, or get some work done at the hybrid desk/dinette. There are also dual opposing slides here for added space. The third slide out is found in the front master bedroom, which includes drawers and storage space for your things. A queen bed will provide a great night's rest, and you have the option to choose a king bed if you want more space to stretch out!

 

With any Momentum M-Class toy hauler by Grand Design, you will enjoy luxury at every turn! They have been constructed to a superior standard with a thermal roof design, triple insulated main floor and garage floor, and a Rail-Tite underbelly seal that will allow you to camp in all elements. Each model also features an 8' 5" wide body chassis with a wide rail design, no wheel wheels, and a dovetail entry for easier loading. The Stealth A/C system provides maximum cooling power, and the CRE3000 suspension system means you can enjoy a smooth tow each time. You will love the luxurious interior with a professional grade stainless steel cooktop, interior color changing LED accent lighting, a fiberglass shower with a glass door, and solid surface countertops. 

Options:
  • 1/2 BATHROOM (GARAGE)
  • 20 CU FT 12V REFRIGERATOR (+ INVERTER PREP
  • 330W SOLAR PANEL
  • 50 AMP CONTROLLER
  • BLUETOOTH MODULE AND 2 DOCK PORTS)
  • 3RD A/C
  • 3RD A/C PREP
  • 6K WATT GENERATOR
  • 7K AXLE W/ABS DRUM BRAKES (TRIPLE AXLE)
  • AUXILIARY FRESH WATER TANK
  • BEDROOM A/C
  • EXTERIOR ENTERTAINMENT CENTER
  • GARAGE LED HD TV
  • GEN III 3 SEASON DOOR WITH SLIDING WINDOWS
  • HEAT PUMP A/C
  • KITCHEN POWER FAN W/RAIN SENSOR
  • M-CLASS EXTERIOR PKG
  • M-CLASS GARAGE PKG
  • M-CLASS LUXURY INTERIOR PKG
  • MOMENTUM GARAGE SUITE FEATURING P2K BED LIFT
  • MOMENTUM PATIO CHAIRS
  • OMNICONNECT - SATELLITE
  • CELLULAR AND WIFI INTERNET PREP
  • REAR ALUMINUM DECK SYSTEM W/REAR POWER AWNING
  • ROCKFORD FOSGATE STAGE 1 STEREO - 500 WATTS
  • INT/EXT SPEAKERS W/10" POWERED SUB
  • RVIA SEAL
  • SAFERIDE RF ROADSIDE ASSISTANCE
  • SOLAR + PKG (ONE ADDITIONAL 330W PANEL & 2000W INVERTER)
  • UNDER UNIT LED LIGHT KIT
  • UPGRADED COOPER H-RATED TIRES W/17.5" WHEELS (TRIPLE AXLE)
  • WEATHER-TEK INSULATION PKG
What Our Customers Are Saying

Above and Beyond!

I give this dealership and all the employees there a five out of a five star rating. Everyone went above and beyond. They were so helpful with everything. I couldn't be happier with the service there! - Jon
Price: $183,276
You Save: $28,281
Sale Price: $154,995
Crestview RV
Location: South Austin - Buda
Stock# 32108
To get help now on this RV, call and enter the RV ID if prompted.
RV ID: 3039885#
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2026 392M Specifications
Sleeps 5
Slides 3
Length 45 ft 11 in
Ext Width 8 ft 5 in
Ext Height 13 ft 6 in
Int Height 8 ft 5 in
Interior Color DUSK
Exterior Color 22500
Hitch Weight 3382 lbs
GVWR 22500 lbs
Dry Weight 16982 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
Available Beds Queen
Refrigerator Type Stainless Steel
Refrigerator Size 20 cu ft
Cooktop Burners 3
Shower Size 48" x 30"
Number of Awnings 2
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 573FM4832TBB04398
For more information Contact Us
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