New 2025 Grand Design Momentum M-Class 344M Toy Hauler Fifth Wheel

Virtual Tour
2025 344M Features and Options

Grand Design Momentum M-Class toy hauler 344M highlights:

  • Dual Opposing Slides
  • Two Power Awnings
  • 11' Separate Garage
  • Fireplace
  • Kitchen Pantry

 

Spend your days at the campground kicking up mud with this toy hauler in tow! once you've unloaded your toys from the ramp door, you can use the 60 gallon fuel station to fill up and head out on a trail! The overhead bed provides a place for guests to sleep, and there is an optional Liftsuite System for more sleeping space if needed. There is even an optional half bath here if you choose to make this space more accommodating. Head to the middle kitchen and living area where you'll enjoy generous counter space to prep meals, a spacious 20 cu. ft. refrigerator, an L-shaped sofa with recline, plus a hybrid desk/dinette that will serve as a dining or working space. The dual entry bath creates a front master bedroom you are sure to love. There is a queen bed with an optional king bed, plenty of overhead storage, and a wardrobe slide to keep your things organized. 

 

With any Momentum M-Class toy hauler by Grand Design, you will enjoy luxury at every turn! They have been constructed to a superior standard with a thermal roof design, triple insulated main floor and garage floor, and a Rail-Tite underbelly seal that will allow you to camp in all elements. Each model also features an 8' 5" wide body chassis with a wide rail design, no wheel wheels, and a dovetail entry for easier loading. The Stealth A/C system provides maximum cooling power, and the CRE3000 suspension system means you can enjoy a smooth tow each time. You will love the luxurious interior with a professional grade stainless steel cooktop, interior color changing LED accent lighting, a fiberglass shower with a glass door, and solid surface countertops. 

Options:
  • 1/2 BAHTROOM (GARAGE)
  • 20 CU. FT. 12V REFRIGERATOR (+ INVERTER PREP
  • 330W SOLAR PANEL
  • 50 AMP CONTROLLER
  • BLUETOOTH MODULE AND TWO (2) DOCK PORTS)
  • 2ND A/C BEDROOM 15K BTU
  • 3RD A/C 15K BTU
  • 3RD A/C PREP
  • 8K AXLE W/ABS DRUM BRAKES (DOUBLE AXLE)
  • AUXILIARY FRESH WATER TANK
  • CDL FEE
  • DUSK
  • EXTERIOR ENTERTAINMENT CENTER
  • GARAGE LED HD TV
  • GEN II 2 SEASON DOOR WITH SLIDING WINDOWS
  • HEAT PUMP A/C
  • KITCHEN POWER FAN W/RAIN SENSOR
  • M-CLASS EXTERIOR PACKAGE
  • M-CLASS GARAGE PACKAGE
  • M-CLASS LUXURY INTERIOR PACKAGE
  • MOMENTUM GARAGE SUITE FEATURING P2K BED LIFT
  • MOMENTUM PATIO CHAIRS
  • REAR ALUMINUM DECK SYSTEM W/ REAR POWER AWNING
  • ROCKFORD FOSGATE STAGE 1 STEREO-500 WATTS
  • INT/EXT SPEAKERS W/10'POWERED SUB
  • RVIA SEAL
  • SAFERIDE RV ROADSIDE ASSISTANCE
  • SOLAR + PACKAGE (ONE (1) ADDITIONAL 330W PANEL & 2000W INVERTER)
  • TRAVLFI ON-BOARD WIFI READY
  • UNDER UNIT BLUE LED LIGHT KIT
  • UPGRADE3D COOPER H-RATED TIRES W/17.5" WHEELS (TANDEM AXLE)
  • WEATHER-TEK INSULATION PACKAGE
  • WINTERIZATION
  • YAMAHA GENERATOR - 6KW GASOLINE GENERATOR
What Our Customers Are Saying

Amazing Staff

Everyone at RV Leaders & Camping Outlet was awesome! Great buying experience. If anyone is looking to buy a cool camper and wants a smooth buying process, this is the place to go! - Ryan
Price: $154,668
You Save: $49,739
Sale Price: $104,929
Moix RV
Location: Moix RV Supercenter
Stock# 12464
To get help now on this RV, call and enter the RV ID if prompted.
RV ID: 2829735#
(enter this ID if prompted)
2025 344M 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 DUSK
Hitch Weight 3300 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 Tankless
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 573FM4223SBB03789
For more information Contact Us

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