2026 Grand Design Momentum G-Class 350G

New Fifth Wheel in Fort Worth, Texas, 76140

$109,995.00

Unit Specs

  • Stock #15934
  • Year2026
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum G-Class
  • Floorplan350G
  • Type Fifth Wheel
  • ConditionNew
  • Length39' 9"
  • Width8' 5"
  • Height13' 6"
  • VIN573FM4225TBB05304
  • MSRP $141,742.00
  • Sale Price $109,995.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Chassis101" Wide-Body Super Chassis
  • Sleeps5
  • Water Capacity (Fresh)98 gal
  • Water Capacity (Black)104 gal
  • Water Capacity (Grey)52 gal
  • Air Conditioners1
  • A/C Spec30,000 BTU
  • Refrigerator Capacity15 ft3
  • Slideouts3
  • Payload Capacity5050 lbs
  • Dry Weight12,950 lbs
  • Tow/Hitch Weight2600 lbs
  • # Axles2

Momentum G-Class 350G Fifth Wheel by Grand Design — Luxury RV Overview

The Momentum G-Class 350G is a premium recreational vehicle born for weekend escapes and extended travels. This 2026 Grand Design fifth wheel brings together rugged, 101-inch wide-body construction with three inviting slideouts, delivering a spacious interior that feels like a home on the road. With a length of 39 feet 9 inches, a width of 8 feet 5 inches, and a height of 13 feet 6 inches, this new stock unit (Stock #15934) offers a true luxury experience in a towable package. Designed for elevated living, the Momentum G-Class 350G blends high-end comfort with practical features, making it an excellent choice for families seeking an exceptional RV experience in a recreational vehicle.

Key Specifications

  • Type: Fifth Wheel (Towable RV)
  • Brand/Model: Grand Design Momentum G-Class 350G
  • Year: 2026 • Status: New
  • Length: 39 feet 9 inches
  • Width: 8 feet 5 inches
  • Height: 13 feet 6 inches
  • Chassis: 101-inch wide-body super chassis
  • GVWR: 18,000 pounds
  • Dry Weight: 12,950 pounds
  • Payload Capacity: 5,050 pounds
  • Hitch Weight: 2,600 pounds
  • Slides: 3
  • Sleep Capacity: 5
  • Fresh Water: 98 gallons
  • Grey Water: 52 gallons
  • Black Water: 104 gallons
  • Air Conditioning: 1 unit, 30,000 BTU

Interior Comfort & Entertainment

  • Full kitchen with microwave, oven, and refrigerator
  • Electric heat and furnace for reliable climate control
  • Solar prep for off-grid versatility
  • Smart TV with additional TV and TV antenna for versatile viewing
  • Warm, inviting living space with fireplace and ample lighting
  • Medicine cabinet and well-appointed bath for daily convenience
  • Insulated construction to enhance comfort in varying climates

Exterior Living & Practical Features

  • Rear ramp door with ramp functionality for easy gear loading
  • Awnings for shaded outdoor living and protection from the elements
  • Exterior speakers to enjoy music outside the RV
  • Skylight for bright, open interior feel
  • Ladder and 101-inch wide-body design emphasize durability and access
  • Black tank flush to simplify waste management and maintenance

Why choose the Momentum G-Class 350G?

This Grand Design fifth wheel combines a robust chassis, generous living space, and thoughtful features to deliver a top-tier travel trailer experience. Whether you’re cruising to a national park or staying close to home, this RV offers comfort, convenience, and reliability for memorable family adventures and long-term road trips.



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

2026 Grand Design Momentum G-Class 350G Features


  • Appliances
    Electric Heat, Furnace, Microwave, Oven, Refrigerator
  • Electrical
    Converter, Solar Prep
  • Equipment
    Smart TV, TV, TV Antenna
  • Exterior
    Awning, Black Tank Flush, Exterior Speakers, Ladder, Ramp, Rear Ramp Door, Skylight
  • Interior/Furnishings
    Fireplace, Medicine Cabinet, Shower
  • Horse / Livestock / LQ / Tack
    Insulated

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 Fort Worth

10100 S Frwy I-35 W
Fort Worth, TX 76140

Member Since 2019

See 1916 Reviews

Unit Specs

  • Stock #15934
  • Year2026
  • ManufacturerGrand Design RV
  • Make Grand Design
  • ModelMomentum G-Class
  • Floorplan350G
  • Type Fifth Wheel
  • ConditionNew
  • Length39' 9"
  • Width8' 5"
  • Height13' 6"
  • VIN573FM4225TBB05304
  • MSRP $141,742.00
  • Sale Price $109,995.00
  • Need to know your payment? Use our RV Loan Calculator!
  • Chassis101" Wide-Body Super Chassis
  • Sleeps5
  • Water Capacity (Fresh)98 gal
  • Water Capacity (Black)104 gal
  • Water Capacity (Grey)52 gal
  • Air Conditioners1
  • A/C Spec30,000 BTU
  • Refrigerator Capacity15 ft3
  • Slideouts3
  • Payload Capacity5050 lbs
  • Dry Weight12,950 lbs
  • Tow/Hitch Weight2600 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 Fort Worth
McClain's RV Fort Worth
McClain's RV Fort Worth

10100 S Frwy I-35 W
Fort Worth, TX 76140

Phone: Click to Call

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2026 Grand Design Momentum G-Class 350G Gallery

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New 2026 Grand Design Momentum G-Class 350G available in Fort Worth, Texas
2026 Grand Design Momentum G-Class 350G - New Fifth Wheel For Sale by McClain's RV Fort Worth in Fort Worth, Texas features Furnace, Converter, Solar Prep, Insulated, Refrigerator
2026 Momentum G-Class 350G by Grand Design from McClain's RV Fort Worth in Fort Worth, Texas
New 2026 Grand Design Momentum G-Class 350G available in Fort Worth, Texas