+42
- Today’s Best Price: $116,295
- MSRP: $140,821
- You Save: $24,526
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40ft long
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12,950 lbs
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Sleeps 6
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3 slides
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Bath and a HalfLoft
350G Floorplan
Specifications
| 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 |
| Interior Color | ARTISAN | 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 |
| 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' 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 | 573FM4229TBB04639 |
Description
Grand Design Momentum G-Class toy hauler 350G highlights:
- Theater Seating
- Bath and a Half
- 14' 6" Separate Garage
- Fireplace
- Private Bedroom
- Unobstructed Pass-Through
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. 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.
- 15 CU FT REFRIGERATOR
- 2ND AWNING
- 3RD A/C
- 3RD A/C PREP
- 6K WATT GENERATOR
- 8K AXLE W/ABS
- BEDROOM A/C
- EXTERIOR PKG
- GARAGE PKG
- GARAGE SUITE
- GEN III 3 SEASON DOOR
- INSULATION PKG
- LUXURY INTERIOR PKG
- OMNICONNECT
- REAR ALUMINIUM DECK SYS
- ROCKFORD FOSGATE STAGE 1
- RVIA SEAL
- SAFERIDE
- SOLAR½ PKG
- UNDER UNIT LED LIGHT KIT
- UPGRADED H-RATED TIRES
Features
Standard Features (2026)
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
- 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
- Moisture Barrier Floor Enclosure
- Cabinet Mounted Heat Ducts
Running Gear
- 15" Aluminum Rims w/Nitrogen Filled Radial Tires
- Anti-Lock Brake System
Interior
- 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
- Stainless Steel Accented Double Door Refrigerator
- Sink Cover
- 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
- Brass Plumbing Fittings w/ Shut Offs
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
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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
- 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 (394G)
- 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
- New Omega Frame
- Electric Auto Leveling System
- 101" Wide-Body Super Chassis
- Rotoflex Pin Box
Interior
- Under Counter Accent Lighting
- Above Cabinet Accent Lighting
- Solid Hardwood Drawer Fronts
- Solid Core Cabinet Stiles
- Pre-Drilled and Screwed Cabinetry
- Undermount soft-close drawer glides
- Roller Shades (All Windows)
- Upgraded Residential Furniture
- Residential Countertops
- Hardwood drawer boxes
- Soft close cabinet doors
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
- Brass Plumbing Fittings w/ Shut Offs
- On Demand Water Heater
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
- 12V Tank Heater Pads
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.
Save your favorite Rvs as you browse. Begin with this one!
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Ron from Oakley, CAGreat Customer Service
Well, I wrote a beautiful review and I think it was erased. I will make this one short and sweet, just in case it took my other one and I can't see it. We took the plunge today and signed the paperwork for our very first RV purchase. We wanted to take a second and say thank you to everyone on staff ... More » -
GregWent overboard to take care of our concerns
We bought a new trailer from you, and we had some manufacturer issues and were concerned about the problem, but that was quickly addressed by Cheryle Schlegel on the service department who absolutely went overboard to take care of our concerns and issues. She went to bat for us with the manufacturer, ... More » -
RickI would highly recommend giving them I try.
After searching five different states for our new momentum 399 toy hauler, the wife and I had just about given up are search. Never have we experienced anything like what the last couple of months have taught us about the RV dealership/industry. We were given Quite the education. We decided to give ... More »
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Happy Daze RV is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales taxes, registration, tags and delivery fees. Manufacture pictures, specifications, and features may be used in place of actual units on our lot. To preserve the quality and mileage of our coaches, we only do test drives with a qualified offer to purchase.