New 2025 Grand Design Momentum M-Class 381MS
+6
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44ft long
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15,800 lbs
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Sleeps 5
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3 slides
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Kitchen IslandBath and a Half
381MS Floorplan
Specifications
| Sleeps | 5 | Slides | 3 |
| Length | 43 ft 11 in | Ext Width | 8 ft 5 in |
| Ext Height | 13 ft 6 in | Int Height | 8 ft 5 in |
| Interior Color | DUSK | Hitch Weight | 3440 lbs |
| GVWR | 22500 lbs | Dry Weight | 15800 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 |
| 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 | 15 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 | 14' 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 | 573FM4530SBB03138 |
Description
The Grand Design Momentum M-Class 381MS is the ultimate adventure toy hauler, blending the ruggedness you need for your off-road toys with the luxury you crave for your time at camp. Let’s take a closer look at the highlights of this incredible RV:
Key Features & Highlights:
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Bath and a Half: No more waiting in line! With a full bathroom and an additional half bath, you can comfortably host friends and family during your adventures.
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15' Separate Garage: This spacious garage is a toy hauler's dream! Use it to store your ATVs, dirt bikes, or kayaks while traveling, then transform it into a second living room or bedroom with the Happi-Jac rollover sofas and a top bed option.
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Dual Entry Doors: Convenience at its finest, the two entry points allow for easy access to both the garage and the main living space.
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Kitchen Island with Bar Stools: Prepare meals with ease at the kitchen island, and enjoy a quick snack or drink with the attached bar stools. This space is designed for entertaining, offering functionality and style.
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Overhead Loft Bed: Extra sleeping space is always welcome, and the overhead loft bed provides just that—perfect for kids or extra guests.
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Universal Docking Station: The practical universal docking station simplifies all your RV hookups, making life on the road a breeze.
Luxury Meets Functionality:
The Grand Design Momentum M-Class 381MS doesn't just excel in the garage—it’s a showstopper throughout. The front bedroom features a queen bed slide, with the option to upgrade to a king, providing plenty of space to unwind. Tons of storage space is available in the bedroom as well, with a slide-top dresser and ample closet space.
In the main living area, cozy up on the four-seat sofa and enjoy the ambiance of the fireplace. Whether it’s a cool morning or a crisp evening, this is the perfect spot to relax and watch the LED TV. The kitchen is decked out with upgraded appliances, solid surface countertops, and plenty of counter space, including a professional-grade stainless steel cooktop for those gourmet camp meals.
Built for Adventure:
The Momentum M-Class models are built tough, ready to handle all the elements with features like a thermal roof design, triple-insulated floors, and a Rail-Tite underbelly seal. This means you can take this toy hauler into colder climates or brave the desert heat without sacrificing comfort. The wide body chassis and dovetail entry ensure easier loading and unloading of your toys, while the CRE3000 suspension system provides a smoother, more controlled tow.
Endless Possibilities Await:
Whether you're hitting the sand dunes, heading deep into the mountains, or just parking at the campground, the Momentum M-Class 381MS is your gateway to adventure. It's rugged, luxurious, and spacious enough for all your toys and companions.
Ready for Your Adventure?
Your adventure starts here at Little Dealer Little Prices RV, a Campers Inn RV Company. When you buy from us, you’re not just getting an RV—you’re joining a community of adventurers. Let us help you take the first step into the wild with the perfect toy hauler.
Isn’t it time you treated yourself to the luxury and thrill of the Momentum M-Class 381MS? Start planning your next adventure today!
Stock 360 Tour & Stock Images may be shown. Colors & Specs may vary
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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Please contact us @ 928-350-2400 for availability as our inventory changes rapidly. Little Dealer Little Prices strives for accurate website information but is not responsible for misprints, typos, or errors on our website. Manufacturer or sample photos and specifications may be used in place of actual unit photos and specs. Monthly payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available. Prices exclude taxes, PDI, documentation and delivery fees, destination charges and fees. This offer expires when this information changes or the stock number is sold.
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.