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

The 11' separate garage is ready for your off-road toys and easily transforms into a versatile second living or dining space once you’re parked.
11ft Garage Bath and Half
2026 351MS Features and Options

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NEW 2026 Grand Design Momentum 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

  • Super Sofa

  • Fireplace

  • Queen Bed Slide with King Bed Option

Adventure feels effortless in the NEW 2026 Grand Design Momentum 351MS, a fifth wheel toy hauler designed for riders, families, and groups who want to travel together without giving up comfort. From desert trails outside Tucson to extended off-grid stays, this Momentum delivers a smart balance of rugged capability and residential-style living.

The 11' separate garage is ready for your off-road toys and easily transforms into a versatile second living or dining space once you’re parked. An overhead loft bed adds extra sleeping capacity, making it easy to bring friends or family along for the ride. With dual entry doors and a rare bath and a half, traffic stays smooth at camp and everyone has convenient access whether you’re coming in from the trails or relaxing indoors.

The main living area is built for gathering and relaxing after a long day outdoors. A large super sofa offers comfortable seating and additional sleeping space, while the LED TV and fireplace create a cozy atmosphere on cooler desert evenings. The slide-out design opens up the floorplan, giving you room to stretch out and enjoy every moment at camp.

At the heart of the coach, the kitchen island with integrated sink and bar stools becomes the perfect hub for meals, snacks, and conversation. Upgraded appliances, generous counter space, and smart storage make it easy to cook for a crowd, whether it’s a quick breakfast before hitting the trails or dinner after sunset.

Up front, the private bedroom offers a true retreat. The queen bed slide, with an optional king bed, provides a comfortable night’s rest, while the slide-top dresser and abundant wardrobe storage keep clothing and gear organized for longer trips.

Momentum fifth wheel toy haulers by Grand Design are engineered for four-season adventure. Construction includes a fully enclosed and heated underbelly, five-sided aluminum cage, and triple insulated garage floor for durability in demanding conditions. The MORryde CRE3000 suspension system, rubber pin box, and upgraded axle hangers ensure confident towing mile after mile. Inside, you’ll appreciate luxury touches like color-changing LED accent lighting, hardwood cabinet doors with hidden hinges, a central vacuum system, and solid surface countertops, all backed by Grand Design’s renowned build quality.

 

Why Buy from Campers Inn RV Tucson? Campers Inn RV Tucson combines a wide selection of adventure-ready RVs with experienced, local professionals who understand the Southwest camping lifestyle. From transparent pricing to dependable service and support, we’re here to help you get the most out of every mile and every campsite.

Inventory/Stock Images may be shown. Colors and specifications may vary. Call our AMAZING TEAM for details.

What Our Customers Are Saying

Very Nice People!

Stopped in cuz steps wouldn’t retract fully and was having problems with water heater. They were really booked, but took time to help us so we could get on the road again very nice people. - Rae
Price: $167,850
You Save: $24,855
Sale Price: $142,995
Campers Inn
Location: Tucson AZ
Stock# 21172346
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RV ID: 3368704#
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2026 351MS Specifications
Sleeps 6
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
Hitch Weight 3000 lbs
GVWR 19000 lbs
Dry Weight 15760 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
Number Of Bunks 1
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 573FM412XTBB04232
For more information Contact Us
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