New 2026 Grand Design Momentum M-Class 351MS Toy Hauler Fifth Wheel

2026 351MS Features and Options

Grand Design Momentum M-Class toy hauler 351MS highlights:

  • Bath and a Half
  • 11' Separate Garage
  • Dual Entry Doors
  • Kitchen Island with Bar Stools
  • Overhead Loft Bed
  • Universal Docking Station

 

Traveling with friends and family can be comfortable when you have a full double entry bathroom and a half bath available when camping and enjoying the trails on your off-road toys! You will have an 11' garage space that can become a second living/dining area, and you can add the optional Liftsuite System for more sleeping space. An overhead bed comes standard, along with a super sofa in the main living area where guests can sleep. Everyone can watch the LED TV when waiting for dinner, and enjoy the fireplace on those chiller nights. The kitchen island offers a sink to wash dishes, extra counter space for serving meals and two stools to dine at. The cook will love all the upgraded appliances, and the space thanks to the slide. The front bedroom gives you a queen bed slide with a king bed option, lots of clothing space, and a slide top dresser for even more storage.

 

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
  • 6K WATT GENERATOR
  • 8K AXLE W/ABS
  • AUXILIARY FRESH WATER TANK
  • BEDROOM A/C
  • EXTERIOR ENTERTAINMENT CENTER
  • EXTERIOR PKG
  • GARAGE LED HD TV
  • GARAGE PKG
  • GARAGE SUITE
  • GEN III 3 SEASON DOOR
  • HEAT PUMP A/C
  • KING BED UPGRADE
  • KITCHEN POWER FAN
  • LUXURY INTERIOR PKG
  • OMNICONNECT
  • PATIO CHAIRS
  • REAR ALUMINIUM DECK SYS
  • ROCKFORD FOSGATE STAGE 1
  • RVIA SEAL
  • SAFERIDE
  • SOLAR½ PKG
  • UNDER UNIT LED LIGHT KIT
  • UPGRADED H-RATED TIRES
  • WEATHER-TEK INSULATION PKG
What Our Customers Are Saying

Great experience!

I was working in Gillette for the day and had furnace issues , called and asked if they could help me out. They were very helpful and were able to fix it and get me on my way. This was all done in no time and without an appointment. Great experience - Von
Price: $171,751
You Save: $28,756
Sale Price: $142,995
Happy Daze
Location: Sacramento
Stock# 70728
To get help now on this RV, call and enter the RV ID if prompted.
RV ID: 3177905#
(enter this ID if prompted)
2026 351MS Specifications
Sleeps 5
Slides 3
Length 40 ft 6 in
Ext Width 8 ft 5 in
Ext Height 13 ft 6 in
Int Height 8 ft 5 in
Interior Color ARTISAN
Hitch Weight 2785 lbs
GVWR 19000 lbs
Dry Weight 14700 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 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 2
Washer/Dryer Available Yes
Number of LP Tanks 2
Shower Type Shower w/Seat
Electrical Service 50 amp
VIN 573FM4124TBB04551
For more information Contact Us
Similar RVs and Floorplans

Loading

.

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.