2026 Grand Design Momentum 392M

New Toy Hauler in Corinth, Texas, 76210

$144,995.00
Est. Payment: $1319/mo
2026 Grand Design Momentum 392M - New Toy Hauler For Sale by McClain's RV Superstore in Corinth, Texas features Overhead Cabinetry, Fire Extinguisher, Dinette, CO Detector, Rear Ramp Door
2026 Momentum 392M by Grand Design from McClain's RV Superstore in Corinth, Texas
New 2026 Grand Design Momentum 392M available in Corinth, Texas

Unit Specs

  • Stock #15933
  • Year2026
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum
  • Floorplan392M
  • Floorplan LayoutFront Bedroom
    Mid Kitchen
    Mid Living Area
    Outdoor Entertainment
    Two Entry/Exit Doors
    U-Shaped Dinette
    U-Shaped Kitchen
  • Type Toy Hauler
  • Secondary Type Fifth Wheel
  • ConditionNew
  • Length45' 11"
  • Width8' 5"
  • Height13' 6"
  • VIN573FM4833TBB05219
  • MSRP $211,132.00
  • Sale Price $144,995.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Chassis101" Wide Body Super Chassis w/Drop-Frame Storage
  • Sleeps9
  • Water Capacity (Fresh)140 gal
  • Water Capacity (Black)52 gal
  • Water Capacity (Grey)104 gal
  • Air Conditioners3
  • A/C Spec3 X 15K BTU
  • Refrigerator Capacity20 ft3
  • Slideouts3
  • Payload Capacity5518 lbs
  • Dry Weight16,982 lbs
  • Tow/Hitch Weight3382 lbs
  • # Axles3
  • Toy hauler fifth wheel with triple slide-outs
  • 17-ft garage with ramp door and patio setup
  • Spacious living area with seating, fireplace, and entertainment center
  • Private front bedroom with queen bed
  • Triple A/C system + 6K watt generator and solar package
  • Full body paint

The 2026 Grand Design Momentum 392M is a large, fully loaded toy hauler built for serious space and capability. The triple slide layout opens up the main living area, giving you plenty of room to relax, cook, and spend time inside without feeling crowded. The kitchen is set up right in the middle with a large refrigerator, solid counter space, and tons of storage, making it easy to stay organized on longer trips.

In the back, the 17-foot garage gives you the flexibility to bring ATVs, bikes, or extra gear, and it easily converts into additional living or sleeping space when you’re parked. Up front, the private bedroom offers a queen bed and wardrobe storage so you can settle in comfortably. At nearly 46 feet long, with sleeping for up to 9, massive tank capacities, and a triple axle setup, this unit is built for extended stays and bigger groups.

With features like three A/C units, generator, solar prep, and a wide-body frame, the Momentum 392M is designed for both comfort and off-grid capability. If you want a toy hauler with real space, strong construction, and the ability to bring everything with you, this one checks all the boxes.



View a video of this 2026 Grand Design Momentum 392M RV on YouTube!

2026 Grand Design Momentum 392M Features


  • Appliances
    Furnace, Microwave, Refrigerator, Stove Top Burner, Water Heater
  • Electrical
    50 Amp Service, Air Conditioning, Batteries, Converter, Solar Prep
  • Equipment
    CO Detector, Fire Extinguisher, LED Lights, LP Detector, Propane, Smoke Detector, TV, TV Antenna
  • Exterior
    Aluminum Entrance Steps, Awning, Black Tank Flush, Detachable Power Cord, Enclosed Underbelly, Exterior Speakers, Exterior Stereo, External Shower, Full Body Paint, Heated Underbelly, Ladder, Leveling Jacks, Pass Thru Storage, Power Awning, Ramp, Rear Ramp Door, Roof Vent, Screen Door, Slam Latch Baggage Doors, Slideout, Spare Tire Kit, Tinted Windows
  • Interior/Furnishings
    Booth Dinette, Central Vacuum, Day/Night Shades, Dinette, Fireplace, Free Standing Dinette w/Chairs, Kitchen Sink, L Sofa, Medicine Cabinet, Overhead Cabinetry, Pantry, Pet Friendly, Roof Vents, Shower, Solid Surface Countertops, Theater Seating, Toilet, Wardrobe(s)

2026 Grand Design Momentum 392M Specifications

General

MSRP

$170,397

Dimensions

Height

13' 6"

Height (interior)

8' 5"

Length

45' 11"

Width

8' 5"

Weights

Dry Weight

18,114 lbs

GVWR

23,500 lbs

Hitch Weight

3,650 lbs

Payload Capacity

5,386 lbs

Capacities

Refrigerator Capacity

20 cu ft

Sleep Capacity

9

Water Capacity - Black

52 gal

Water Capacity - Fresh

140 gal

Water Capacity - Grey

104 gal

Exterior

# Awnings

2

# Axles

3

# Doors

3

# Slides

3

Chassis

101" Wide Body Super Chassis w/Drop-Frame Storage

Hitch

Fifth Wheel

Rear Opening

Ramp

Electrical

# A/C

1

A/C Spec

30,000 BTU

*MFG Specs are for the base unit. Certain options may change specifications listed. Please consult dealer for more details. RVUSA.com cannot guarantee the accuracy of the data presented.

2026 Grand Design Momentum 392M Literature


2026 Grand Design Momentum Brochure PDF 2026 Grand Design Momentum Brochure 1
Stock #: 15933
Dealer Info

McClain's RV Superstore

5601 S. I-35 E.
Corinth, TX 76210

Member Since 2019

See 1730 Reviews

Unit Specs

  • Stock #15933
  • Year2026
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum
  • Floorplan392M
  • Floorplan LayoutFront Bedroom
    Mid Kitchen
    Mid Living Area
    Outdoor Entertainment
    Two Entry/Exit Doors
    U-Shaped Dinette
    U-Shaped Kitchen
  • Type Toy Hauler
  • Secondary Type Fifth Wheel
  • ConditionNew
  • Length45' 11"
  • Width8' 5"
  • Height13' 6"
  • VIN573FM4833TBB05219
  • MSRP $211,132.00
  • Sale Price $144,995.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Chassis101" Wide Body Super Chassis w/Drop-Frame Storage
  • Sleeps9
  • Water Capacity (Fresh)140 gal
  • Water Capacity (Black)52 gal
  • Water Capacity (Grey)104 gal
  • Air Conditioners3
  • A/C Spec3 X 15K BTU
  • Refrigerator Capacity20 ft3
  • Slideouts3
  • Payload Capacity5518 lbs
  • Dry Weight16,982 lbs
  • Tow/Hitch Weight3382 lbs
  • # Axles3

Estimated Payment-

Interest Rate % *(W.A.C.)
Term Years
Down Payment $
*W.A.C. = With approved credit

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McClain's RV Superstore
McClain's RV Superstore

5601 S. I-35 E.
Corinth, TX 76210

Phone: Click to Call

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2026 Grand Design Momentum 392M Gallery
New 2026 Grand Design Momentum 392M available in Corinth, Texas
2026 Grand Design Momentum 392M - New Toy Hauler For Sale by McClain's RV Superstore in Corinth, Texas features Overhead Cabinetry, Fire Extinguisher, Dinette, CO Detector, Rear Ramp Door
2026 Momentum 392M by Grand Design from McClain's RV Superstore in Corinth, Texas
New 2026 Grand Design Momentum 392M available in Corinth, Texas