NEW 2025 Grand Design Momentum M-Class 344M

The MSRP of this unit includes the following packages/options from Grand Design:

  • 2025 Momentum Fifth Wheel Model: MT344M-2025 | Base Price: $112,712.00
  • M-Class Luxury Interior Package | Price: $3,285.00
  • M-Class Exterior Package | Price: $3,650.00
  • M-Class Garage Package | Price: $ 1,095.00
  • Weather-Tek Insulation Package | Price: $1,460.00
  • Under Unit LED Light Kit | Price: $139.00
  • Bedroom A/C | Price: $1,015.00
  • 3rd A/C Prep | Price: $285.00
  • Kitchen Power Fan with Rain Sensor | Price: $285.00
  • Garage LED HD TV | Price: $723.00
  • Auxiliary Fresh Water Tank | Price: $329.00
  • 20 Cu. Ft. 12V Refrigerator (+ Inverter Prep, 330W Solar Panel, 50 AMP Controller, Bluetooth Module and Two (2) Dock Ports) | Price: $1,460.00
  • TravlFi On-Board WiFi Ready | Price: $437.00
  • SafeRide RV Roadside Assistance | Price: $22.00
  • RVIA Seal | Price: $156.00
  • Upgraded Cooper H-Rated Tires w/ 17.5" Wheels (Tandem Axle) | Price: $723.00
  • Rockford Fosgate Stage 1 Stereo - 5oo Watts, Int/Ext Speakers w/ 10" Powered Sub
  • Yamaha Generator - 6kw Gasoline Generator | Price: $5,858.00
  • Gen II 3 Seasons Door with Sliding Windows | Price: $1,533.00
  • 3rd A/C | Price: $1,015.00
  • Heat Pump A/C | Price: $285.00
  • Happi-Jac Electric Bunk System w/ Folding Sofas | Price: $3,789.00
  • Rear Aluminum Deck System w/ Rear Power Awning | Price: $3,008.00
  • Momentum Patio Chairs | Price: $285.00
  • Exterior Entertainment Center | Price: $1,161.00
  • Solar + Package (One (1) Additional 330W Panel & 2000W Inverter) | Price: $1,351.00
  • 8K Axle with ABS Drum Brakes (Double Axle)
  • CDL Fee
  • GRAND TOTAL INCLUDING FREIGHT - $148,001.00

MOMENTUM M-CLASS - PLAY HARD. REST EASY. - The Momentum M-Class Fifth Wheel series truly raises the bar when it comes to Toy Haulers. With plenty of space for taking it easy and a garage for leaving the mess, the M-Class was built for living well and playing hard.

EXTREME R&R - Our top-of-the-line Momentum M-CLASS Fifth Wheel Toy Haulers are — inside and out — our most luxurious Toy Haulers. With the comfort of a master suite and master bath, home’s now a long way from your house.

MAKE YOUR MOMENTUM STAND OUT WITH OPTIONAL FULL BODY PAINT

101” SUPERCHASSIS - A full 5” wider than many coaches in its class, the widebody chassis allows for more livable floor space with deeper sliderooms, wider sofas in rear lounge models, and space saving sliding pocket doors into the bathrooms…all at a shorter towing length. Wide Rail Design - Heavy duty I-beam main rails are placed further outward on the chassis. This wider rail placement provides a more stable jack stance, and allows for the slideroom gearpacks to be enclosed inside the frame rails (rather than outside). No Wheel Wells - A true toy hauler with no wheel wells to maximize cargo option. Not to mention more floor space for camping. Dovetail Entry - Dovetails ensure you have a longer ramp and softer angle for loading your toys.

MORRYDE CRE3000 SUSPENSION SYSTEM - When it comes to suspension performance, it’s all about suspension travel. Increased travel means smoother towing, improved towability and better protection from damaging road shock.

COOPER TIRES - 17.5" All-Steel H-Rated Tires. Chip Guard: Protects from chips or cuts. Scrub Guard: Minimizes wear from starts, stops, tight turns and curb impacts. SPEED RATING: 75 MPH. LOAD RATING 4,805 LBS

ABS BRAKES - Travel with Confidence. Industry-first Anti-lock Braking System for Towables. Experience the most advanced braking system for RVs on the market today. The ABS combines all the critical components of a vehicle-based braking system, such as its sensors and actuators—adapted to operate independently within RVs—to provide the driver with added control over steering while braking in slippery conditions or on rough terrain.

STEALTH 3+ SMART A/C SYSTEM - Run THREE 15K ACs at the SAME TIME! We combine high efficiency AC’s and an energy management system to achieve the perfect balance of efficiency and power! Add an Optional 3rd AC for Maximum Cooling Power! ULTRA QUIET - Up to 2x Quieter than the competition. MAXIMUM AVAILABLE COOLING POWER - Dual 15,000 BTU A/Cs and an optional 3rd A/C. AIRTITE CONNECTORS - All duct pieces are securely fastened together using special connector brackets. 23% MORE AIRFLOW THAN AVERAGE OF LEADING COMPETITORS

SOUND BY ROCKFORD FOSGATE - Shake it up with Rockford Fosgate. Includes Rockford Fosgate head unit, interior and exterior speakers, an amplified subwoofer and over 500 watts of power! Stage 1 Package - 500+ Watts of Total Power (Standard): Rockford Fosgate Source Unit (App Controllable), 10" Powered Interior Subwoofer, 6.5" 3-Way Interior Speakers. Stage 2 Package - 900+ Watts of Total Power (Optional): Rockford Fosgate Source Unit (App Controllable), 10" Powered Interior Subwoofer, Six 6.5" 3-Way Interior Speakers, 10" Exterior Subwoofer, Two 6.5" Color Optix™ 2-Way Speakers, 400 Watt 4-Channel Amplifier, Exterior Rockford Fosgate Source Unit (App Controllable)

SOLAR PACKAGE - MORE TIME. MORE PLACES. SOLAR POWER NOW COMES STANDARD. Camp longer and in more places with the factory-installed 330W Roof Mounted Solar Panel, 50 AMP Charge Controller with Bluetooth Module, Inverter Prep, (2) USB Dock Ports, and 20 cu. ft. 12V Refrigerator standard on all Momentum M-Class's. No camping spot is off-limits. Just add batteries and go. Camp where you want, when you want

CONSTRUCTED TO A SUPERIOR STANDARD

  • Thermal Roof Design (R-40) - Fiberglass insulation and a layer of radiant foil insulation cover the roof. Grand Design goes further by extending both insulation layers the full length of the roof and around to the bottom of the front cap.

  • Full Laminated Walls (R-11) - Sidewalls, ramp door, slideroom endwalls, and slideroom roof are all welded aluminum framed and laminated with rigid foam insulation. Many others use wood framing and soft fiberglass insulation in the sliderooms that can settle over time and leave uninsulated air gaps.

  • Triple Insulated Main Floor (R-45) - The underbelly is lined with a radiant foil insulation barrier (Layer 1) and is then covered with fiberglass insulation that wraps all the way up the sides of the frame rails (Layer 2). The main floor enhances the R-Value with yet another layer of fiberglass insulation (Layer 3).

  • Triple Insulated Garage Floor (R-40) - While many toy hauler garage floors are NOT insulated, our exclusive garage floor design provides 3 layers of insulation. A base layer of radiant foil insulation (Layer 1) is topped with fiberglass insulation (Layer 2), and finishes with a second layer of radiant foil insulation on the underside of the garage floor (Layer 3).

  • 1.5" Insulated Baggage Doors - Rigid Foam insulation lines the inside of our heavy duty baggage doors.

  • Vented Attic - To maximize the effectiveness of the roof insulation, a vented attic allows condensation to escape the roof structure.

  • Insulated Gooseneck - Radiant foil insulation under the gooseneck is a place often forgotten by others.

  • Rail-Tite Underbelly Seal - Rigid aluminum rails are fastened around the perimeter of the underbelly to keep the corrugated barrier up tight against the frame for a better seal from the elements.

Four Seasons RV - we believe in making dreams of adventure a reality. As a small, family-owned dealership specializing in RV sales and service, we take pride in our commitment to customer satisfaction and transparency. With our "Where the fun begins" slogan as our guiding principle, we strive to be more than just a place to buy an RV – we're your trusted partners in exploration. Our knowledgeable product specialists are passionate about helping you find the perfect RV to suit your lifestyle and aspirations. And with our straightforward pricing and no additional fees policy, you can trust that your RV buying experience will be both seamless and enjoyable. From the moment you step onto our lot, to the day you drive off into the sunset, we're here to support you every step of the way. Experience the difference with Four Seasons RV, where every journey begins with excitement and possibility.

Retail Price
$148,001
Sales Price
$127,776
Stock # 102536
Year 2025
Make Grand Design
Model Momentum M-Class
Trim 344M
Condition NEW
Status AVAILABLE
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Specifications

General
Category Class Toy Hauler Fifth Wheel
Secondary Class Bunkhouse, Toy Hauler
VIN 573FM4226SBB03012
Overall Size
Exterior Height 13' 6"
Exterior Length (FT/IN) 39' 11"
Exterior Width (IN/MM) 8' 5"
Exterior Width (w/ slideout) 12' 10"
Interior Height (IN) 8' 5"
Weights
Hitch/Pin Weight (lbs) 3,734 LBS
UVW (lbs) 15160 LBS
Gross Weight Rating (LB/KG) 19,000 LBS
Capacity
Max Sleeping Count 6
Total Fresh Water Tank Capacity (GAL/L) 140 GALLONS
Total Gray Water Tank Capacity (GAL/L) 104 GALLONS
Total Black Water Tank Capacity (GAL/L) 52 GALLONS
Number of LP Tanks 2
LP Tank Capacity 60 LBS
Fuel Tank Capacity (GAL/L) 60 GALLONS
Appliances
Water Heater Tank TANKLESS
Refrigerator Size 20 CU FT
Refrigerator Power Mode 12V
Number Of Stove Burners 4
Heater BTU 35,000
Heater Type LP
AC BTU 30,000
Washer/Dryer Prep YES
Electrical Service 50 AMP
Running Gear
Number Of Axles 2
Wheel Size 17.5"
Tire Size ST215/75R17.5LRH
Brake System TOW ASSIST ABS
Construction
Construction Type ALUMINUM CAGE
Floor R-Value R-45
Wall R-Value R-11
Roof R-Value R-40
Slide Room R-Value R-11
Sidewall Construction LAMINATED
Dimensions
Main Bedroom Size QUEEN
Number Of Bunks 3
Number Of Couches 1
Number Of Bathrooms 1
Shower Size 30" x 48"
Dinette Type HYBRID DESK/DINETTE
Exterior
Number Of Slideouts 3
Number Of Awnings 2
Awning Length 18' & 10'
Number Of Doors 2
Leveling Jack Type HYDRAULIC AUTO LEVELING
Other Specifications
Ride Digital