New 2026 Grand Design Momentum M-Class 351MS
+45- 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 | 573FM412XTBB04232 |
Description
"This is the manufacturer's minimum allowed advertised price, contact us today for your unbeatable personalized quote."
NEW 2026 Grand Design Momentum Toy Hauler 351MS 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
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Super Sofa
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Fireplace
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Queen Bed Slide with King Bed Option
Adventure feels effortless in the NEW 2026 Grand Design Momentum 351MS, a fifth wheel toy hauler designed for riders, families, and groups who want to travel together without giving up comfort. From desert trails outside Tucson to extended off-grid stays, this Momentum delivers a smart balance of rugged capability and residential-style living.
The 11' separate garage is ready for your off-road toys and easily transforms into a versatile second living or dining space once you’re parked. An overhead loft bed adds extra sleeping capacity, making it easy to bring friends or family along for the ride. With dual entry doors and a rare bath and a half, traffic stays smooth at camp and everyone has convenient access whether you’re coming in from the trails or relaxing indoors.
The main living area is built for gathering and relaxing after a long day outdoors. A large super sofa offers comfortable seating and additional sleeping space, while the LED TV and fireplace create a cozy atmosphere on cooler desert evenings. The slide-out design opens up the floorplan, giving you room to stretch out and enjoy every moment at camp.
At the heart of the coach, the kitchen island with integrated sink and bar stools becomes the perfect hub for meals, snacks, and conversation. Upgraded appliances, generous counter space, and smart storage make it easy to cook for a crowd, whether it’s a quick breakfast before hitting the trails or dinner after sunset.
Up front, the private bedroom offers a true retreat. The queen bed slide, with an optional king bed, provides a comfortable night’s rest, while the slide-top dresser and abundant wardrobe storage keep clothing and gear organized for longer trips.
Momentum fifth wheel toy haulers by Grand Design are engineered for four-season adventure. Construction includes a fully enclosed and heated underbelly, five-sided aluminum cage, and triple insulated garage floor for durability in demanding conditions. The MORryde CRE3000 suspension system, rubber pin box, and upgraded axle hangers ensure confident towing mile after mile. Inside, you’ll appreciate luxury touches like color-changing LED accent lighting, hardwood cabinet doors with hidden hinges, a central vacuum system, and solid surface countertops, all backed by Grand Design’s renowned build quality.
Why Buy from Campers Inn RV Tucson? Campers Inn RV Tucson combines a wide selection of adventure-ready RVs with experienced, local professionals who understand the Southwest camping lifestyle. From transparent pricing to dependable service and support, we’re here to help you get the most out of every mile and every campsite.
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.



