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New 2025 Grand Design Momentum M-Class 344M

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Call Today 209-924-4022
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 the optional Happi-Jac rollover sofas and a table with a top bed will give you the option to add even more seating and sleeping space. 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, 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:
  • 20 CU FT 12V REFRIGERATOR
  • 3RD A/C
  • 3RD A/C PREP
  • 8K AXLE W/ ABS DRUM BRAKES
  • AUXILLARY FRESH WATER TANK
  • BEDROOM A/C
  • EXTERIOR ENTERTAINMENT CENTER
  • EXTERIOR PKG
  • GARAGE LED HD TV
  • GARAGE PKG
  • GEN II 3 SEASON DOOR
  • HAPPI-JAC ELECTRIC BUNK
  • HEAT PUMP A/C
  • KITCHEN POWER FAN W/ RAIN S
  • LUXURY INTERIOR PKG
  • MOMENTUM PATIO CHAIRS
  • REAR ALUMINUM DECK SYSTEM
  • ROCKFORD FOSGATE STG 1
  • RVIA SEAL
  • SAFERIDE RV ROADSITE
  • SOLAR ½ PKG
  • TRAVLFI ON-BOARD WIFI
  • UNDER UNIT LED LIGHT KIT
  • UPGRADED COOPER TIRES
  • WEATHER-TEK INSULATION PKG
  • YAMAHA GENERATOR
What Our Customers Are Saying

I would recommend Happy Daze RV to everyone.

"Cheryle, Doug and Jonathan were extremely helpful. They bent over backwards to help get our 5th Wheel out in record time so we could finish our 2 1/2 month travels. We were only out 1 week when we had a tire blow and damage to the wiring and body of our 5th Wheel. I would recommend Happy Daze RV to everyone. If stars were given - they would get 10 stars!!!!!!!!!!!!!!" - Karen
MSRP: $152,906
Location: Ripon
Stock# 69893
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 MAGNOLIA
Hitch Weight 3734 lbs
GVWR 18000 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 573FM4229SBB03005
For more information, call us at 209-924-4022 or Contact Us
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ManuFacts
Grand Design Logo
In 2012, we started with a blank canvas to pursue that better way, a different way, than what had been done before. A company whose culture requires a long-term, personal connection with our customers, employees, and dealers – that company is Grand Design RV. Our business model of doing the right thing has led us to unparalleled years of growth.
 
Our local workforce has been hand-picked and has an excellent reputation for second-to-none industry craftsmanship, and our CEO and Senior Management actively work with the production facilities to help build the team and develop products.
 
At Grand Design we've raised the quality bar by putting every unit through a series of quality inspection gates during the manufacturing process. Once completed, the unit undergoes a comprehensive “final finish” inspection. Every one of our coaches is shipped to a PDI (Pre-Delivery Inspection) area where they are put through a rigorous 300+ point inspection checklist before being shipped to our dealers.  And, we back every one of our coaches with a 3-year limited structural warranty.  
 
At Grand Design our goal is simple – continue leading the industry with quality products while improving the customer’s RV experience before, during and after the sale. We strive for nothing less than customers for life and we would be honored to personally welcome you to the Grand Design RV family!

Happy Daze RV is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales taxes, registration, tags and delivery fees. Manufacture pictures, specifications, and features may be used in place of actual units on our lot. To preserve the quality and mileage of our coaches, we only do test drives with a qualified offer to purchase.