New 2026 Grand Design Momentum M-Class 351MS
+47- SALE PRICE: $142,995
- MSRP: $167,850
- You Save: $24,855
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40ft long
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15,760 lbs
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Sleeps 6
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3 slides
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Kitchen IslandBath and a Half
351MS Floorplan
Specifications
| Sleeps | 6 | Slides | 3 |
| Length | 40 ft 6 in | Ext Width | 8 ft 5 in |
| Ext Height | 13 ft 6 in | Int Height | 8 ft 5 in |
| Hitch Weight | 3000 lbs | GVWR | 19000 lbs |
| Dry Weight | 15760 lbs | Fresh Water Capacity | 140 gals |
| Grey Water Capacity | 52 gals | Black Water Capacity | 104 gals |
| Tire Size | ST215/75R17.5 LRH | Furnace BTU | 35000 btu |
| Fuel Capacity | 60 gals | Number Of Bunks | 1 |
| Available Beds | Queen | Refrigerator Type | Stainless Steel |
| Refrigerator Size | 20 cu ft | Cooktop Burners | 3 |
| Number of Awnings | 2 | Axle Weight | 7000 lbs |
| Garage Size | 11 ft | LP Tank Capacity | 30 lbs |
| Water Heater Type | On Demand | AC BTU | 30000 btu |
| TV Info | LED TV; LR 49", Garage 32" | Awning Info | 10' and 18' Power with LED Lights |
| Axle Count | 2 | Washer/Dryer Available | Yes |
| Number of LP Tanks | 2 | Shower Type | Shower w/Seat |
| Electrical Service | 50 amp | VIN | 573FM4121TBB04233 |
Description
"This is the manufacturer's minimum allowed advertised price, contact us today for your unbeatable personalized quote."
NEW 2026 Grand Design Momentum 351MS Toy Hauler Fifth Wheel Highlights:
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Bath and a Half
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11' Separate Garage
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Dual Entry Doors
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Kitchen Island with Bar Stools
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Overhead Loft Bed
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Universal Docking Station
Designed for riders who want space, comfort, and true four-season capability, the NEW 2026 Grand Design Momentum 351MS delivers an ideal balance of rugged toy hauler performance and residential-style living. Whether you’re traveling with family or a group of friends, this Momentum makes every adventure more comfortable and more memorable.
The 11' separate garage gives you the flexibility to haul your off-road toys while also transforming into a second living or dining area once you’re parked. An overhead loft bed adds valuable sleeping space, making it easy to accommodate guests without sacrificing comfort in the main living area. Dual entry doors provide convenient access, and the bath and a half layout ensures everyone has room to get ready without waiting in line.
Inside, the main living space is designed for relaxation after a day on the trails. The super sofa offers sleeping space for guests, while the LED TV and fireplace create a warm, inviting atmosphere on cooler evenings. The kitchen is both functional and social, featuring a center island with a sink and bar stools, generous counter space, and upgraded appliances that make meal prep easy whether you’re cooking for two or the whole group.
The front private bedroom serves as a true retreat, offering a queen bed slide with an optional king upgrade, ample wardrobe storage, and a slide-top dresser for added organization. Throughout the coach, smart storage solutions and thoughtful design details make extended stays simple and comfortable.
Momentum fifth wheel toy haulers by Grand Design are engineered for extreme living and year-round travel. Construction includes a fully enclosed and heated underbelly, 5-sided aluminum cage, and a triple insulated garage floor. The MORryde CRE3000 suspension system, rubber pin box, and upgraded axle hangers deliver confident towing and a smoother ride. Inside, you’ll enjoy upscale finishes such as color-changing LED accent lighting, hardwood cabinet doors with hidden hinges, a central vacuum system, and solid surface countertops. Multiple factory packages—including the Garage Package, Weather-Tek Package with Stealth A/C, and Interior Luxury Package—ensure this Momentum is ready for wherever the road leads.
Why Buy from Campers Inn RV? Campers Inn RV is known for transparent pricing, nationwide buying power, and a customer-first approach that supports you before, during, and long after the sale. When you choose Campers Inn RV, you’re partnering with a team that understands your adventures and stands behind every mile you travel.
Inventory/Stock Images may be shown. Colors and specifications may vary. Call our AMAZING TEAM for details.
Features
Standard Features
Exterior
- Keyed Alike™ Ramp Door Latches
- 2nd Patio Awning w/ LED Lights
- 3rd Awning w/LED Lights (Main Slide-395MS)
- Exterior Color Changing LED Accent Lighting
- High-Gloss Gel Coat Exterior Sidewalls
- Door Side Exterior Spray Port
- Frameless Tinted Windows
- Walk-On Roof
- 17.5" Spare Tire (Undermount)
- MORryde Strut Assist Entry Step
- Slam-Latch Baggage Doors
- Mo Secure
Construction
- 101" Wide-Body Construction
- 5-Side Aluminum Cage Construction
- Fully Enclosed Underbelly w/Heated Tanks and Storage
Running Gear
- Upgraded Axle Hangers
- Heavy Duty H-Rated Tires
- Heavy Duty 7,000lb. Axles with ABS Drum Brakes (381MS, 395MS)
- Heavy Duty 8,000lbs. Axles with ABS Drum Brakes (351MS)
- 17.5" H-Rated Aluminum Wheels
- MORryde® CRE3000 Suspension System
- Tow Assist ABS & Sway Mitigation System
Frame & Chassis
- 6-Point Hydraulic Leveling System
- 101" Wide Body Super Chassis
Interior
- Interior Color Changing LED Accent Lighting
- Hardwood Cabinet Doors w/Hidden Hinges
- Recliner Sofa w/Adjustable Headrest or Flip Down Cupholders
- Central Vacuum System w/ Tools and Dust Pan
- Plywood Drawer Bottoms
Kitchen
- Microwave
- Residential Kitchen Faucet
- Professional Grade Stainless Steel Cooktop
- 12v High Power MaxxAir Fan with Rain Sensor
- Window Behind Range (N/A 395MS)
- Kitchen Barstools w/Extended Countertops (351MS, 381MS)
- Smart Sink w/removable cutting board, produce strainer and glass rinser
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
- Stealth AC System w/ Insulated A/C Ducts
- Attic Vent
- High Capacity Heat Ducts
Plumbing
- Exterior Spray Port (Door Side)
- 12V Tank Heaters
- Sewer House Storage Area
- Whole House Water Filtration System
- All-In-One Enclosed Utility Center
Bedroom
- Under Bed Storage Area
- Individually Switched Reading Lights Over Bed
- Bedside 110-Volt & USB Outlets
- Window Above Master Bed Headboard
- 60" x 80" Queen Pillow Top Bed Mattress
Bathroom
- Porcelain Toilet
- Medicine Cabinet w/Mirrored Door
- Undermount Lav Sink
- One-Piece Fiberglass Shower w/Glass Door & Teak Bench Seat
Appliance
- Fireplace with Electric Heater
- Stainless Steel 20 cu. ft. Refrigerator
- 30" Over-The-Range Microwave
Electronics
- Exterior Cable/SAT Plug-In
- LED Smart TV in Living Area
- Rockford Fosgate Stereo Ent. System w/HDMI and App Controls
- Exterior Speakers
- No-Crank Digital TV Antenna w/Booster
- LED TV in Garage (NA 336M)
- TravLFi On-Board WiFi Ready
Packages
Exterior Package
- Satellite TV Prep
- MORryde Strut Assist Entry Step
- Aluminum Quad Entry Steps - Garage Entry
- 7,000 lb. Axles w/Self Adjusting Brakes, Wet Bolts and Bronze Bushings
- 17” Aluminum Wheels (120PSI Rated)
- Cooper Tires® 17.5" All-Steel H-Rated Tires
- Slam-Latch Baggage Doors
- Frameless Tinted Windows
- Exterior Security Lights
- Power Patio Awning w/LED Lighting
- Folding Roof Ladder
- White Gel Coat Fiberglass Front Cap
- 12V Battery Disconnect
- All-In-One Exterior Utility Center
- 50 Amp Service
- Converter
- Enclosed Fuel Station w/ Dual Fuel Tank (Single Tank 336M)
- Partial Paint Gel Coat Fiberglass Front Cap
Interior Package
- 49" Class LED TV in Living Area
- Stereo Entertainment System w/Bluetooth and App Based Controls in Living Area
- Washer/Dryer Prep
- On Demand Water Heater
- Roller Shade Window Coverings (Main Living Area and Bedroom)
- Recessed LED Puck Lighting
- Solid Surface Countertops w/ Sink Covers
- Stainless Steel Undermount Kitchen Sink
- Chef Inspired Range & Oven w/ Cover
- Kitchen Pantry w/ LED Light Strip
- Garage Control Panel
Garage Package
- 32" Class LED TV in Garage
- Protective Diamond Plate on Garage Sidewalls
- 2,500 lb. Rated Flush-Mount Tie-Downs
- Ram-Air Garage Vents Both Sides
- Tuff-Ply Gas and Oil Resistant Garage Flooring
- FastRamp Rear Ramp Door
- Triple Insulated Garage Floor
Weather-Tek Package
- R-Value Equivalent (R-40 Roof / R-45 Floor / R-11 Sidewalls / R-40 Garage Floor / R-24 Slideroom Floor)
- Fully Enclosed and Heated, Underbelly and Storage Area
- Enclosed and Heated Low Point Drains
- Engineered Underbelly Airflow Heat Paths
- Stealth AC System w/ Insulated A/C Ducts
- Attic Vent
- Plumbing Line Insulation Barrier
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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*All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn locations. Campers Inn RV Sales 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 inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.
Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.



