New 2026 Grand Design Momentum G-Class 320G

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New 2026 Grand Design Momentum G-Class 320G

Toy Hauler Fifth Wheel

Stock # 56618

Bath, NY

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36ft long
12,400 lbs
Sleeps 5

3 slides
Exterior: Fiberglass

Master Bed Slide

See All Specs

Floorplan
Specifications
Description
Features
Factory Brochure

320G Floorplan

Factory Brochure

View all Momentum G-Class Floorplans

Specifications

Sleeps	5	Slides	3
Length	36 ft 3 in	Ext Width	8 ft 5 in
Ext Height	13 ft 6 in	Int Height	8 ft 7 in
Interior Color	DUSK	Hitch Weight	2300 lbs
GVWR	16400 lbs	Dry Weight	12400 lbs
Fresh Water Capacity	98 gals	Grey Water Capacity	52 gals
Black Water Capacity	104 gals	Tire Size	17.5"
Furnace BTU	35000 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	8000 lbs	Garage Size	11 ft
LP Tank Capacity	30 lbs	Water Heater Type	Tankless
AC BTU	30000 btu	TV Info	LR 40" LED 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
VIN	573FM3820TBB04370

Description

Grand Design Momentum G-Class toy hauler 320G highlights:

11' Separate Garage
Bath and a Half
Loft
Fireplace
Private Bedroom
Fuel Station

Are you looking forward to arriving at your destination, unloading your toys from an 11' separate garage, and heading out to the dunes? You can return to this Momentum G-Class toy hauler afterwards to find the convenience of having a full and half bath, two entry doors, and a loft bed. The rear ramp door can even be converted into a patio, plus there are exterior speakers to keep the party going! You will also appreciate the separate living area with a fireplace, theater seating slide, and full kitchen amenities. The front bedroom offers an escape to rest and relax for the next ride. Take a look outside and inside because you will be sold!

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. Each model includes a fuel station with an interior and exterior gauge, a dovetail rear rend, and 2,500-LB tie-downs anchored into the chassis. Throughout the Momentum G-Class interior, you'll enjoy many comfortable features like large panoramic windows, a shower skylight, USB chargers in the bedroom, and residential cabinetry.

Options:

2ND A/C BEDROOM
2ND AWNING
3RD A/C GARAGE
3RD A/C PREP
COOPER H-RATED TIRES W 17.5" WHEELS
DEALER DISCOUNT
G-CLASS EXTERIOR PACKAGE
G-CLASS GARAGE PACKAGE
G-CLASS INSULATION PACKAGE
G-CLASS LUXURY INTERIOR PACKAGE
GARAGE SUITE FEATURING P2K BED LIFT
GEN II 3 SEASON DOOR W/ SLIDING WINDOWS
GENERATOR - YAMAHA 6 WATT GASOLINE GENERATOR
OMNICONNECT-SATELLITE
CELLULAR AND WIFI INTERNET PREP
REAR ALUMIUM DECK SYSTEM W/ REAR POWER AWNING
RVIA SEAL
SAFERIDE RV ROADSIDE ASSISTANCE
SOLAR PACKAGE
UNDER UNIT LED LIGHT KIT

Call 518-945-5467

Features

Standard Features (2026)

PLEASE NOTE: Features and Options separated by type below:

-----------------------------------------------------------------

TRAVEL TRAILERS

Exterior

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

Construction

Power Tongue Jack
Oversized Tank Capacities
One-Piece TPO Roof Membrane w/ Limited 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
Moisture Barrier Floor Enclosure
Cabinet Mounted Heat Ducts

Running Gear

15" Aluminum Rims w/Nitrogen Filled Radial Tires
Anti-Lock Brake System

Interior

Under Counter Accent Lighting
Above Cabinet Accent Lighting
Solid Hardwood Drawer Fronts
Solid Core Cabinet Stiles
Pre-Drilled and Screwed Cabinetry
Ball Bearing Full Extension Drawer Glides
Large Panoramic Windows
Night Shades (All Windows)
Upgraded Residential Furniture
Residential Countertops
Stainless Steel Accented Microwave
Stainless Steel Accented 3-Burner Range with Oven
Glass Range Cover (Flush w/Counter Top)
Stainless Steel Accented Double Door Refrigerator
Sink Cover
Bottle Opener
Residential Cabinetry

Kitchen

Deep Seated Stainless-Steel Sink
Residential Pull-Down Sprayer Faucet

Electrical

50 Amp Service (21G & 23G - 30 Amp Service)
Detachable Marine Grade Power Cord w/LED Light

HVAC

30k BTU High Capacity Furnace
Heated and Enclosed Underbelly w/Suspended Tanks

Plumbing

On Demand Water Heater

Bedroom

Large Backlighted Mirror
Night Stands
Bedside Outlets
USB Chargers
Solid Bedroom Door
Residential Bedspread
TV and Cable Prep

Bathroom

Residential Walk-In Shower
Skylight Over Shower
Power Vent Fan
Medicine Cabinet with Mirror
Headboard
Double Entrance Bathroom

Appliance

Stainless Steel Accented Appliances

Electronics

Rockford Fosgate Bluetooth Stereo
High Definition LED Television

Garage

Full-sized Rear Ramp Door
Dovetail Rear End
Rear-Ramp Loading Lights w/back-up light function
2,500 lbs. Tie-Downs Anchored Into the Chassis

Packages

Exterior Package

Universal Docking Station
Black Tank Flush
Fiberglass Front Cap w/Paint
48” LED Front Cap Lighting
Diamond Plate Front Rock Guard
15” Aluminum Rims
Triple Aluminum Tread Entry Steps
Walk on Roof
On Demand Water Heater
50 Amp Service (21G & 23G - 30 Amp Service)
Detachable Marine Grade Power Cord w/LED Light

Luxury Interior Package

Deep Seated Stainless-Steel Sink
Residential Pull-Down Sprayer Faucet
Residential Cabinetry
Motion Sensor Exterior Storage Lighting
Motion Sensor Entry Lighting
Rockford Fosgate Bluetooth Stereo
High Definition LED Television
Stainless Steel Accented Appliances

Garage Package

30 Gallon Fuel Station w/Interior and Exterior Gauge
Full-Size Rear Ramp Door
Dovetail Rear End
No Wheel Wells
Rear-Ramp Loading Lights w/Back-up Light Function
2,500 lbs. Tie-downs Anchored into the Chassis

Insulation Package

30k BTU High Capacity Furnace
Heated and Enclosed Underbelly w/Suspended Tanks
Double Insulated Roof and Front Cap (R-40*)
Heated and Enclosed Dump Valves
High Density Roof Insulation w/Attic Vent
Moisture Barrier Floor Enclosure
Cabinet Mounted Heat Ducts

--------------------------------------------------

FIFTH WHEELS

Exterior

Black Tank Flush
Full Sized Spare Tire & Carrier
80% Tint Radius Safety Glass Windows
30lb. LP Bottles (2)
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
Large Panoramic Windows
Magnetic Storage and Entry Door Latches
Awning w/LED Accent Lighting
Under Unit Accent Lighting

Construction

Oversized Tank Capacities
One-Piece TPO Roof Membrane
Laminated Aluminum Framed Rear Ramp Door (R-7)
Laminated Aluminum Framed Side Walls (R-11)
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*)

Running Gear

Upgraded Axle Hangers
Heavy Duty H-Rated Tires
Heavy Duty 7,000 lb. Axles with ABS Drum Brakes (415G)
Heavy Duty 8,000 lb. Axles with ABS Drum Brakes (320G, 325G, 350G)
17.5" H-Rated Aluminum Wheels
MORryde CRE3000 Suspension System
Tow Assist ABS & Sway Mitigation System

Frame & Chassis

Electric Auto Leveling System
101" Wide-Body Super Chassis

Interior

Under Counter Accent Lighting
Above Cabinet Accent Lighting
Solid Hardwood Drawer Fronts
Solid Core Cabinet Stiles
Pre-Drilled and Screwed Cabinetry
Ball Bearing Full Extension Drawer Glides
Night Shades (All Windows)
Upgraded Residential Furniture
Residential Countertops
Plywood Drawer Bottoms

Kitchen

Microwave
Residential Kitchen Faucet
Stainless Steel Accented 3-Burner Range with Oven
Glass Range Cover (Flush w/ Countertop)
12-Volt High Power MaxxAir Fan with Rain Sensor

Electrical

Solar Prep (10-Gauge Wiring with Universal MC4 Connectors)
75 Amp Converter
12V Battery Disconnect
Omni Connect On-Board WiFi Ready

HVAC

12v High Power Fan (Kitchen)
35K BTU High Capacity Furnace
Fireplace w/5000 BTU Electric Heater
Main A/C with Race Track Ducting
Attic Vent
High-Capacity Heat Ducts

Plumbing

Sewer Hose Storage Area
All-In-One Enclosed and Heated Utility Center

Bedroom

Night Stands
Bedside Outlets
USB Chargers
Solid Bedroom Door
Residential Bedspread
TV and Cable Prep

Bathroom

Residential Walk-In Shower
Skylight Over Shower
Power Vent Fan
Medicine Cabinet with Mirror

Appliance

Fireplace with Electric Heater
Stainless Steel Refrigerator
Microwave

Electronic

Back-Up Camera Prep
Exterior Cable/Satellite Plug In
LED Smart TV in Living Area
Rockford Fosgate Stereo Entertainment System w/HDMI and App Controls
Exterior Speakers
No-Crank Digital TV Antenna w/Booster
TV Prep in Garage

Packages

Exterior Package

Universal Docking Station
Black Tank Flush
Fiberglass Front Cap w/Paint
48” LED Front Cap Lighting
16” Aluminum Rims
Triple Aluminum Tread Entry Steps
Walk on Roof
On Demand Water Heater
50 Amp Service
Detachable Marine Grade Power Cord w/LED Light

Luxury Interior Package

Deep Seated Stainless-Steel Sink
Residential Pull-Down Sprayer Faucet
Residential Cabinetry
Motion Sensor Exterior Storage Lighting
Motion Sensor Entry Lighting
Rockford Fosgate Bluetooth Stereo
High Definition LED Television
Stainless Steel Accented Appliances

Garage Package

Fuel Station w/Interior and Exterior Gauge
Dovetail Rear End
Rear-Ramp Loading Lights w/Back-up Light Function
2,500 lbs. Tie-downs Anchored into the Chassis

Insulation Package

35k BTU High Capacity Furnace
Heated and Enclosed Underbelly w/Suspended Tanks
Double Insulated Roof and Front Cap (R-40*)
Heated and Enclosed Dump Valves
High Density Roof Insulation w/Attic Vent
Moisture Barrier Floor Enclosure
Cabinet Mounted Heat Ducts

See us for a complete list of features and available options!

All standard features and specifications are subject to change.

All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.

Due to the current environment, our features and options are subject to change due to material availability.

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2026 Momentum G-Class 320G

Toy Hauler Fifth Wheel

Stock #56618

Bath, NY

518-945-5467

Specifications

Sleeps 5
3 Slides
Length 36ft
GVWR Weight 16400 lbs
Dry Weight 12,400 lbs
Stainless Steel Refridgerator
Queen Size Bed
Fresh Water Capacity 98 gals
AC BTU 30000 btu

Wilkins RV is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual units on our lot. Please contact us @518-945-5467 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available. All rates, payments and terms are subject to bank approval. SMS terms and privacy policy: https://www.age-texting.com/wilkins-rv-sms-terms-and-privacy