2026 Grand Design Momentum G-Class 350G

New Fifth Wheel in Rockwall, Texas, 75087

$104,995.00
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New 2026 Grand Design Momentum G-Class 350G available in Rockwall, Texas
2026 Grand Design Momentum G-Class 350G - New Fifth Wheel For Sale by McClain's RV Rockwall in Rockwall, Texas
2026 Momentum G-Class 350G by Grand Design from McClain's RV Rockwall in Rockwall, Texas
New 2026 Grand Design Momentum G-Class 350G available in Rockwall, Texas

Unit Specs

  • Stock #15267
  • Year2026
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum G-Class
  • Floorplan350G
  • Floorplan LayoutFront Bath
    Front Bedroom
    Full Wall Slide
    Mid Kitchen
    Mid Living Area
    Rear Bath
    U-Shaped Kitchen
  • Type Fifth Wheel
  • ConditionNew
  • Mileage1 miles
  • Length39' 9"
  • Width8' 5"
  • Height13' 6"
  • VIN573FM4222TBB04630
  • MSRP $136,946.00
  • Sale Price $104,995.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Sleeps7
  • Water Capacity (Fresh)98 gal
  • Water Capacity (Black)104 gal
  • Water Capacity (Grey)52 gal
  • Air Conditioners1
  • A/C Spec30000 BTU
  • Slideouts3
  • Payload Capacity5050 lbs
  • Dry Weight12,950 lbs
  • # Axles2

The 2026 Grand Design Momentum G-Class 350G is the ultimate combination of rugged toy hauler functionality and upscale residential comfort. Measuring over 40 feet long with a spacious garage, this fifth wheel is built for adventurers who want to bring their toys along without sacrificing luxury. Whether you’re hauling ATVs, motorcycles, or kayaks, the 350G makes it easy to travel in style while keeping everything you need close at hand.

Inside, the Momentum G-Class 350G feels like a high-end retreat. The rear garage doubles as a versatile living space, complete with Happi-Jac rollover sofas, a half bath, and a rear patio system option for outdoor entertaining. In the main living area, you’ll find theater seating, a large LED TV, and a cozy fireplace that make downtime just as enjoyable as the adventure. The gourmet kitchen features solid surface countertops, stainless steel appliances, a residential-size refrigerator, and ample storage, making meal prep simple and enjoyable.

When it’s time to unwind, the private front master suite offers a queen bed (with king option), spacious wardrobe, and direct access to the full bathroom with a large shower and premium fixtures. Built with Grand Design’s renowned quality, including an insulated all-season package and heavy-duty frame, the Momentum G-Class 350G ensures comfort and durability no matter where the road leads. It’s the perfect choice for thrill-seekers who want to take on big adventures while enjoying big comfort.



View a video of this 2026 Grand Design Momentum G-Class 350G RV on YouTube!

2026 Grand Design Momentum G-Class 350G Features


2026 Grand Design Momentum G-Class 350G Specifications

General

MSRP

$115,040

Dimensions

Height

13' 6"

Height (interior)

8' 7"

Length

39' 9"

Width

8' 5"

Weights

Dry Weight

12,950 lbs

GVWR

18,000 lbs

Hitch Weight

2,600 lbs

Payload Capacity

5,050 lbs

Capacities

Refrigerator Capacity

15 cu ft

Sleep Capacity

5

Water Capacity - Black

104 gal

Water Capacity - Fresh

98 gal

Water Capacity - Grey

52 gal

Exterior

# Awnings

1

# Axles

2

# Doors

3

# Slides

3

Chassis

101" Wide-Body Super Chassis

Hitch

Fifth Wheel

Rear Opening

Ramp

Electrical

# A/C

1

A/C Spec

30,000 BTU

*MFG Specs are for base unit. Certain options may change specifications listed. Please consult dealer for more details. Data is provided by a 3rd party. RVUSA.com cannot guarantee the accuracy of the data presented.

2026 Grand Design Momentum G-Class 350G Literature


2026 Grand Design Momentum G-Class Brochure PDF 2026 Grand Design Momentum G-Class Brochure 1
Seller Info

McClain's RV Rockwall

2505 E. I-30
Rockwall, TX 75087

Member Since 2019

See 1427 Reviews

Unit Specs

  • Stock #15267
  • Year2026
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum G-Class
  • Floorplan350G
  • Floorplan LayoutFront Bath
    Front Bedroom
    Full Wall Slide
    Mid Kitchen
    Mid Living Area
    Rear Bath
    U-Shaped Kitchen
  • Type Fifth Wheel
  • ConditionNew
  • Mileage1 miles
  • Length39' 9"
  • Width8' 5"
  • Height13' 6"
  • VIN573FM4222TBB04630
  • MSRP $136,946.00
  • Sale Price $104,995.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Sleeps7
  • Water Capacity (Fresh)98 gal
  • Water Capacity (Black)104 gal
  • Water Capacity (Grey)52 gal
  • Air Conditioners1
  • A/C Spec30000 BTU
  • Slideouts3
  • Payload Capacity5050 lbs
  • Dry Weight12,950 lbs
  • # Axles2

Estimated Payment-

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

Email Seller

Request More Info on this 2026 Grand Design Momentum G-Class 350G Offered for sale by McClain's RV Rockwall
McClain's RV Rockwall
McClain's RV Rockwall

2505 E. I-30
Rockwall, TX 75087

Phone: Click to Call

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New 2026 Grand Design Momentum G-Class 350G available in Rockwall, Texas
2026 Grand Design Momentum G-Class 350G - New Fifth Wheel For Sale by McClain's RV Rockwall in Rockwall, Texas
2026 Momentum G-Class 350G by Grand Design from McClain's RV Rockwall in Rockwall, Texas
New 2026 Grand Design Momentum G-Class 350G available in Rockwall, Texas