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2025 Grand Design Momentum 344M Exterior
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+7

344M Floorplan
Specifications
| Sleeps | 5 | Slides | 3 |
| Length | 39 ft 11 in | Ext Width | 8 ft 5 in |
| Ext Height | 13 ft 6 in | Int Height | 8 ft 5 in |
| Interior Color | MAGNOLIA | Hitch Weight | 3734 lbs |
| GVWR | 19000 lbs | Dry Weight | 15138 lbs |
| Fresh Water Capacity | 140 gals | Grey Water Capacity | 104 gals |
| Black Water Capacity | 52 gals | Tire Size | ST215/75R17.5 LRH |
| Furnace BTU | 35000 btu | Fuel Capacity | 60 gals |
| Available Beds | Queen | Refrigerator Type | Stainless Steel |
| Refrigerator Size | 20 cu ft | Cooktop Burners | 3 |
| Shower Size | 30" x 48" | Number of Awnings | 2 |
| 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 | 3 | Washer/Dryer Available | Yes |
| Number of LP Tanks | 2 | Shower Type | Shower w/Seat |
| Electrical Service | 50 amp | VIN | 573FM4221SBB03032 |
Description
Grand Design Momentum M-Class toy hauler 344M highlights:
- Dual Opposing Slides
- Two Power Awnings
- 11' Separate Garage
- Fireplace
- Kitchen Pantry
New 2025 Grand Design Momentum M-Class 344M – Luxury, Power, and Adventure in One Incredible Toy Hauler
If you’re ready to take your adventures to the next level, the 2025 Grand Design Momentum M-Class 344M is the perfect blend of luxury living and rugged utility. Built for travelers who want high-end comfort without sacrificing the thrill of bringing along their toys, this fifth wheel toy hauler delivers everything you need for unforgettable getaways.
Step inside and you’ll find a spacious, residential-inspired interior designed for relaxation after a day of adventure. The main living area features premium theater seating, a large entertainment center with an LED TV and fireplace, and expansive windows that flood the space with natural light.
The chef-inspired kitchen offers solid-surface countertops, a large pantry, stainless steel appliances, and a residential refrigerator — making meal prep easy whether you’re on the road or parked at your favorite campground.
In the garage, you’ll find a versatile, well-equipped space with tie-downs for your ATVs, motorcycles, or gear, along with Happi-Jac roll-over sofas, an overhead bunk, and a rear patio option for extra outdoor living. The garage can easily convert into additional sleeping or lounge space, making this floorplan as flexible as your lifestyle.
The front master suite features a queen bed (with king bed option), a large wardrobe, and direct access to a luxurious bathroom with a spacious shower, linen storage, and premium fixtures.
Outside, the Momentum M-Class 344M stands out with dual power awnings, a weather-resistant ramp door, pass-through storage, and Grand Design’s legendary build quality — including insulated walls, a fully enclosed underbelly, and heavy-duty frame construction.
Reasons to Buy the 2025 Grand Design Momentum M-Class 344M
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Spacious garage with flexible sleeping and lounge options
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High-end kitchen with residential appliances and large pantry
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Front master suite with premium comfort and storage
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Dual power awnings and rear patio option for outdoor living
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Superior insulation and construction for all-season camping
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Built by Grand Design for long-lasting durability and comfort
Why Buy from Campers Inn RV?
Since 1966, Campers Inn RV has been the trusted choice for RVers across the country. Our mission is to provide unmatched service, competitive pricing, and a hassle-free buying experience. When you shop with us, you get:
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A knowledgeable team that listens to your needs and helps you find the right RV
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Nationwide network of service centers and support
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Competitive financing options tailored to your budget
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A commitment to making sure your RV experience is fun, stress-free, and memorable
The New 2025 Grand Design Momentum M-Class 344M is ready to be your home base for endless adventures — and it’s available now at Campers Inn RV. Come see why so many RVers choose us for their journey!
Features
Standard Features (2025)
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.



