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New 2025 Grand Design Momentum M-Class 381MS

Toy Hauler Fifth Wheel

Stock #98672

Mesa, AZ

Includes $34,116 in options. Convenience at its finest, the two entry points allow for easy access to both the garage and the main living space.

1 of 55

+55

MSRP: $150,720

Payments From: $1,008 /mo.

Sleeps 5
3 Slides
Kitchen Island

Bath and a Half

44ft Long
15,800 lbs
DUSK

See All Specs

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:

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.
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.
Dual Entry Doors: Convenience at its finest, the two entry points allow for easy access to both the garage and the main living space.
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.
Overhead Loft Bed: Extra sleeping space is always welcome, and the overhead loft bed provides just that—perfect for kids or extra guests.
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, 398M)
Heavy Duty 8,000lbs. Axles with ABS Drum Brakes (349M, 351MS)
17.5" H-Rated Aluminum Wheels
MORryde® CRE3000 Suspension System
Anti-Lock Brake 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
Sofa w/Headrest (Includes Heat, Massage & LED Lighting Package)
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 (349M, 351MS, 381MS, 398M)
Kitchen Barstools w/Extended Countertops (349M, 351MS, 381MS, 398M)
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 (N/A 336M)
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 (N/A 336M)
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
12 Gallon Gas/Electric 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 (N/A 336M)

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(N/A 336M)
Tuff-Ply Gas and Oil Resistant Garage Flooring
FastRamp Rear Ramp Door(N/A 336M)
Triple Insulated Garage Floor (N/A 336M)

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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888-834-9581
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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.