Grand Design Momentum G-Class Toy Hauler Fifth Wheel RVs For Sale

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The Grand Design Momentum G-Class toy hauler fifth wheels and toy hauler travel trailers are a lighter series without sacrificing Momentum's ceiling and slide out heights or wide-body platform. Both offer a fuel station with an interior and exterior gauge to keep the fun going wherever you take your toys.

Each model also includes a universal docking center, a fiberglass front cap with paint and LED lighting, a heated and enclosed underbelly for four seasons of traveling, and a dovetail rear end. The Momentum G-Class also comes with large panoramic windows, residential cabinetry, motion-sensor lighting, and stainless steel-accented appliances. The fun will not stop when listening to the exterior speakers, and the power awning with LED lighting will create an outdoor living space you are sure to love.

Check out the Momentum G-Glass toy hauler travel trailers and toy hauler fifth wheels to crank up the fun with your off-road toys!

Floorplans (5)
Features
Manu-Facts

Momentum G-Class 320G

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Grand Design Momentum G-Class toy hauler 320G highlights: 11' Separate Garage ... more about Momentum G-Class 320G

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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
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' Power with LED Lights
Axle Count	2
Washer/Dryer Available	Yes
Number of LP Tanks	2
Shower Type	Walk-In Shower
Electrical Service	50 amp

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Bath and a Half Loft Two Entry/Exit Doors

Momentum G-Class 325G

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Grand Design Momentum G-Class toy hauler 325G highlights: 15' Garage Top Bed ... more about Momentum G-Class 325G

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Specifications

Sleeps	7
Slides	2
Length	35 ft 6 in
Ext Width	8 ft 4 in
Ext Height	13 ft 6 in
Int Height	8 ft 7 in
Hitch Weight	2474 lbs
GVWR	16400 lbs
Dry Weight	11696 lbs
Fresh Water Capacity	160 gals
Grey Water Capacity	78 gals
Black Water Capacity	39 gals
Tire Size	17.5"
Furnace BTU	35000 btu
Fuel Capacity	60 gals
Number Of Bunks	1
Available Beds	Queen
Refrigerator Type	Stainless Steel
Refrigerator Size	15 cu ft
Cooktop Burners	3
Shower Size	48" x 30"
Number of Awnings	2
Axle Weight	8000 lbs
Garage Size	15 ft
LP Tank Capacity	30 lbs
Water Heater Type	Tankless
AC BTU	30000 btu
TV Info	LR LED Smart TV
Awning Info	15' Power with LED Lights
Axle Count	2
Washer/Dryer Available	Yes
Number of LP Tanks	2
Shower Type	Walk-In Shower
Electrical Service	50 amp

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Front Bedroom

Momentum G-Class 350G

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Grand Design Momentum G-Class toy hauler 350G highlights: Theater Seating Bath ... more about Momentum G-Class 350G

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Specifications

Sleeps	7
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	2600 lbs
GVWR	18000 lbs
Dry Weight	12950 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
Number Of Bunks	1
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	14 ft 6 in
LP Tank Capacity	30 lbs
Water Heater Type	Tankless
AC BTU	30000 btu
TV Info	LR LED 40" Smart TV
Awning Info	18' Power with LED Lights
Axle Count	2
Washer/Dryer Available	Yes
Number of LP Tanks	2
Shower Type	Walk-In Shower
Electrical Service	50 amp

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Momentum G-Class 355G

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Grand Design Momentum G-Class toy hauler 355G highlights: Rollover Sofas 24' ... more about Momentum G-Class 355G

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Specifications

Sleeps	8
Slides	2
Length	40 ft 1 in
Ext Width	8 ft 4 in
Ext Height	13 ft 5 in
Int Height	8 ft 7 in
Hitch Weight	3017 lbs
GVWR	18000 lbs
Dry Weight	12950 lbs
Fresh Water Capacity	160 gals
Grey Water Capacity	78 gals
Black Water Capacity	39 gals
Tire Size	17.5"
Furnace BTU	40000 btu
Fuel Capacity	60 gals
Number Of Bunks	1
Available Beds	Queen
Refrigerator Type	Stainless Steel
Refrigerator Size	15 cu ft
Cooktop Burners	3
Shower Size	48" x 30"
Number of Awnings	2
Garage Size	24 ft
LP Tank Capacity	30 lbs
Water Heater Type	Tankless
AC BTU	30000 btu
TV Info	LR LED Smart TV
Awning Info	14' and 20' Power with LED Lights
Axle Count	2
Washer/Dryer Available	Yes
Number of LP Tanks	2
Shower Type	Walk-In Shower
Electrical Service	50 amp

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Front Bedroom

Momentum G-Class 415G

Take a Virtual Tour

Grand Design Momentum G-Class toy hauler 415G highlights: 14' Separate Garage ... more about Momentum G-Class 415G

Have a question about this floorplan? Contact Us

Specifications

Sleeps	7
Slides	3
Length	44 ft 11 in
Ext Width	8 ft 5 in
Ext Height	13 ft 6 in
Int Height	8 ft 7 in
Hitch Weight	3422 lbs
GVWR	22500 lbs
Dry Weight	15310 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
Number Of Bunks	1
Available Beds	Queen
Refrigerator Type	Stainless Steel
Refrigerator Size	15 cu ft
Cooktop Burners	3
Shower Size	48" x 30"
Number of Awnings	2
Axle Weight	7000 lbs
Garage Size	14 ft
LP Tank Capacity	30 lbs
Water Heater Type	Tankless
AC BTU	15000 btu
TV Info	LR 40" LED Smart TV
Awning Info	12' & 15' Power with LED Lights
Axle Count	3
Washer/Dryer Available	Yes
Number of LP Tanks	2
Shower Type	Walk-In Shower
Electrical Service	50 amp

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Momentum G-Class Features:

Standard Features (2025)

PLEASE NOTE: Features and Options separated by type below:

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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/18-Year 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

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

Quick Recovery 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

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
Quick Recovery Water Heater
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 (LED)
Motion Sensor Entry Lighting (LED)
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
30# 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
Large Panoramic Windows
Magnetic Storage and Entry Door Latches
Power Awning w/LED Accent Lighting
Under Unit Accent Lighting

Construction

Oversized Tank Capacities
One-Piece TPO Roof Membrane w/12-Year Warranty
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 (355G, 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 (N/A 315G)

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

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

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

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
Quick Recovery Water Heater
50 Amp Service
Detachable Marine Grade Power Cord w/LED Light

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.

Manu-Facts:

In 2012, we started with a blank canvas to pursue that better way, a different way, than what had been done before. A company whose culture requires a long-term, personal connection with our customers, employees, and dealers – that company is Grand Design RV. Our business model of doing the right thing has led us to unparalleled years of growth.

Our local workforce has been hand-picked and has an excellent reputation for second-to-none industry craftsmanship, and our CEO and Senior Management actively work with the production facilities to help build the team and develop products.

At Grand Design we've raised the quality bar by putting every unit through a series of quality inspection gates during the manufacturing process. Once completed, the unit undergoes a comprehensive “final finish” inspection. Every one of our coaches is shipped to a PDI (Pre-Delivery Inspection) area where they are put through a rigorous 300+ point inspection checklist before being shipped to our dealers. And, we back every one of our coaches with a 3-year limited structural warranty.

At Grand Design our goal is simple – continue leading the industry with quality products while improving the customer’s RV experience before, during and after the sale. We strive for nothing less than customers for life and we would be honored to personally welcome you to the Grand Design RV family!