New 2026 Grand Design Momentum G-Class 350G

Wausau, WIKings Campers

Sleeps6
Length39' 9"
Dry weight13,400 lb
GVWR18,000 lb

Questions about this 2026 Grand Design Momentum G-Class 350G

What does it cost?

Kings Campers lists it at $93,995. The dealer gives its MSRP as $139,829, so that is $45,834 (33%) below MSRP.

Is it new or used?

New. It is a 2026 model.

Is it still for sale?

Kings Campers’s website listed it for sale on October 31, 2026. RV Shift checks dealers’ websites about once a day, so ask the dealer to be sure.

Where is it?

At Kings Campers in Wausau, WI. See all 25 RVs Kings Campers lists on RV Shift.

How many people does it sleep?

The dealer lists it as sleeping 6.

How long is it?

39' 9", with 3 slide-outs, as the dealer lists it.

How much does it weigh?

The dealer lists a dry weight (empty) of 13,400 lb, a GVWR (the most it is allowed to weigh loaded) of 18,000 lb and a hitch weight of 2,600 lb.

What does it take to tow it?

RV Finder’s estimate: it needs a vehicle rated to tow about 14,600 lb, with a fifth-wheel hitch. That is its 13,400 lb dry weight plus 1,200 lb for water and gear, rounded up to the next 100 lb. The listing doesn’t say whether it’s a fifth wheel or a bumper-pull. RV Finder judged it as a fifth wheel from its weights: ask the dealer. RV Finder shows whether it is within your vehicle’s published rating, from the maker’s own towing guide, and checks tongue weight and payload too. Confirm your numbers in your owner’s manual and on the sticker in the driver’s door jamb. Check it in RV Finder

How do I ask the dealer about it?

Use the Check availability form on this page. Your message comes to RV Shift and we pass it to Kings Campers.

About this RV

Grand Design Momentum G-Class toy hauler 350G highlights: • Theater Seating • Bath and a Half • 14' 6" Separate Garage • Fireplace • Private Bedroom Just imagine the fun you will have with this Momentum G-Class toy hauler set up at any off-road park. With the 14' 6" separate garage that includes a half bath, a second exterior entry door, and a loft, you will have your own area to do what you like. The rear ramp door can even be converted into a patio if you need more outdoor living space. The main living area offers a fireplace, theater seating, and kitchen appliances to make delicious home cooked meals. You will also be able to stay clean and ready for the next ride with the walk-in shower in the full bathroom, and the front master bedroom has plenty of storage for clothing with the wardrobe slide and overhead cabinets. Are you looking for adventure and fun? The Momentum G-Class toy hauler by Grand Design will help you find it! You can explore during any season you choose with the Insulation Package that includes a heated and enclosed underbelly with suspended tanks, a high-capacity furnace, a moisture barrier floor enclosure, and cabinet-mounted heat ducts.

Specifications as listed by the dealer

Type
Toy hauler
Condition
New
Year
2026
Make
Grand Design
Model
Momentum G-Class 350G
Stock number
K3844
VIN
573FM228TBB05717
Sleeps
6
Slides
3
Length
39 ft 9 in
Ext Width
8 ft 5 in
Ext Height
13 ft 6 in
Int Height
8 ft 7 in
Hitch Weight
2,600 lbs
GVWR
18,000 lbs
Dry Weight
13,400 lbs
Fresh Water Capacity
98 gals
Grey Water Capacity
52 gals
Black Water Capacity
104 gals
Tire Size
17.5"
Furnace BTU
35,000 btu
Fuel Capacity
30 gals
Available Beds
Queen
Refrigerator Type
Stainless Steel
Refrigerator Size
15 cu ft
Cooktop Burners
3
Shower Size
48" x 30"
Number of Awnings
1
Axle Weight
8,000 lbs
Garage Size
14 ft 6 in
LP Tank Capacity
30 lbs
Water Heater Type
Tankless
AC BTU
30,000 btu
TV Info
LR LED 40" Smart TV
Awning Info
18' w/LED Accent Lighting
Axle Count
2
Washer/Dryer Available
Yes
Number of LP Tanks
2
Shower Type
Walk-In Shower
Electrical Service
50 amp

Features

  • Main A/C with Race Track Ducting
  • Backup Camera Prep
  • Black Tank Flush
  • Full Sized Spare Tire & Carrier
  • 80% Tint Radius Safety Glass Windows
  • 20# LP Bottles (2) w/Cover
  • Radius Entry Door
  • High-Capacity Water Pump
  • Extra Large 1 1/2” Fresh Water Drain Valve
  • Battery Disconnect Switch
  • Folding Roof Ladder
  • Gel Coated Fiberglass Exterior
  • Easy Access Low Point Drain Valves
  • Insulated Storage Doors
  • Magnetic Storage and Entry Door Latches
  • 18’-19’ Awning w/LED Accent Lighting
  • Under Unit Accent Lighting
  • Rockford Fosgate Speaker Package with Powered Sub
  • Solar Prep (10 gauge wiring with universal MC4 connectors)
  • Motion Sensor Exterior Storage Lighting
  • Motion Sensor Entry Lighting
  • Fiberglass Front Cap w/Paint
  • 48” LED Front Cap Lighting
  • Diamond Plate Front Rock Guard
  • Triple Aluminum Tread Entry Steps
  • 30 Gallon Fuel Station w/Interior and Exterior Gauge
  • Power Tongue Jack
  • Oversized Tank Capacities
  • New Worry-Free Composite Roof w/ Lifetime Warranty
  • Laminated Aluminum Framed Rear Ramp Door (R-12)
  • Laminated Aluminum Framed Side Walls (R-7)
  • Laminated Aluminum Framed Roof and End Walls in Slide Rooms (R-7)
  • 1” Marine Grade OSB Floor (R-30*)
  • 5" Radius Wood Framed Roof (R-40*)
  • Universal Docking Station
  • Walk on Roof
  • No Wheel Wells
  • Double Insulated Roof and Front Cap (R-40*)
  • Heated and Enclosed Dump Valves
  • High Density Roof Insulation w/Attic Vent

Listing and photos: Kings Campers. Details come from the dealership and can change; confirm them before you buy.