New and used Grand Design RVs for sale

New 2026 Grand Design Momentum M-Class 344M

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BECKLEYS RVS THERMONT, MD
Thurmont, MD

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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.

New 2025 Grand Design Momentum M-Class 344M

$104,989.00
ST GEORGE,UT

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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.

New 2026 Grand Design Momentum M-Class 344M

$143,295.00
TROY OH
Troy, OH

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Grand Design Momentum toy hauler 344M highlights: Dual Opposing Slides Two Power Awnings 11' Separate Garage Fireplace Kitchen Pantry Experience extreme luxury and unmatched adventure capability with the New 2026 Grand Design Momentum M-Class 344M, now available at Campers Inn RV. This elite toy hauler redefines what it means to travel with power, style, and comfort, making it the perfect choice for riders, adventurers, and families who want to bring everything they love along for the journey. From the moment you step inside, the Momentum M-Class 344M impresses with its intelligent design and premium features. The spacious garage area offers rugged versatility to haul your favorite toys—motorcycles, ATVs, dirt bikes, or outdoor gear—while doubling as a versatile living space thanks to convertible seating, storage systems, and high-quality tie-downs. When the adventure is done, transform the garage into a lounge or extra sleeping area, giving you ultimate flexibility. The main living area is crafted for comfort and style, featuring a residential-grade entertainment center, premium furniture, and panoramic windows that bring in natural light and scenic views. The fully equipped kitchen boasts modern appliances, sleek countertops, and ample storage, making it easy to whip up meals after a day of outdoor fun. Dine, relax, and entertain in a space that feels as refined as it is functional. Retreat to the luxurious master suite with a comfortable queen bed, generous closet space, and thoughtful amenities that create a private oasis. The adjacent full bathroom offers residential comforts, including a modern shower and premium fixtures. Every detail inside the Momentum M-Class 344M reflects Grand Design’s commitment to quality, durability, and comfort. This model’s advanced construction and smart layout are designed for those who refuse to compromise. With high-capacity holding tanks, advanced climate control systems, and robust suspension, the 344M is ready for all your travel plans—whether chasing the perfect trail, weekend expeditions, or extended road trips across the country. There are countless reasons to choose the 2026 Grand Design Momentum M-Class 344M. Bring rugged gear and luxury living together in one powerful package, enjoy spacious interiors, embrace flexible sleeping and living configurations, and travel with confidence knowing you have gear-ready storage and premium comforts. This toy hauler is perfect for thrill-seekers, families, and anyone ready to take their lifestyle on the road without compromise. When you buy from Campers Inn RV, you partner with one of the nation’s most trusted RV dealers. Our experienced team provides honest guidance, thorough inspections, and transparent pricing to ensure you find the right RV for your needs. With flexible financing options, dedicated customer support, and a service department that keeps your RV running smoothly long after the sale, Campers Inn RV makes buying simple, stress-free, and enjoyable. Elevate your travel lifestyle with the New 2026 Grand Design Momentum M-Class 344M at Campers Inn RV—where adventure starts and memories begin. STOCK IMAGES SHOWN - DETAILS MAY VARY

New 2026 Grand Design Momentum M-Class 344M

$165,857.00
BRETZ RV & MARINE BILLINGS, MT
Billings, MT

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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.

New 2025 Grand Design Momentum M-Class 344M

$99,977.00
CAMPERS INN RV CONWAY, SC
Conway, SC

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Grand Design Momentum M-Class 344M Toy Hauler Highlights: Three A/Cs for Maximum Climate Control Solar+ Package for Off-Grid Capability 8K Axles with ABS Drum Brakes for Safety 11' Separate Garage with Overhead Bed Dual Opposing Slides for Extra Living Space Two Power Awnings for Outdoor Comfort Fireplace & Hybrid Desk/Dinette for Functionality Spacious Kitchen Pantry & 20 Cu. Ft. Refrigerator Garage & Outdoor Features: 11' separate garage with overhead bed for additional sleeping space 60-gallon fuel station keeps your toys adventure-ready Dual power awnings create a comfortable outdoor living area Living & Interior Comfort: Dual opposing slides for an open and inviting floorplan L-shaped reclining sofa for relaxation Fireplace with entertainment setup Hybrid desk/dinette offering flexible dining and workspace options Kitchen Features: 20 cu. ft. refrigerator for all your groceries Generous counter space for meal prep Spacious kitchen pantry for extra storage Bedroom & Bath: Front master bedroom with residential queen bed (optional king upgrade) Dual-entry bathroom with fiberglass shower and glass door Wardrobe slide and overhead storage for organization Construction & Performance: Triple-insulated main floor and garage floor for year-round comfort Thermal roof design & Rail-Tite underbelly seal for superior insulation Stealth A/C system with three A/C units for powerful cooling CRE3000 suspension system for a smoother ride Heavy-duty 8K axles with ABS drum brakes for enhanced towing safety Solar+ Package for off-grid adventures With luxurious interiors, rugged construction, and advanced off-grid capability, the Grand Design Momentum M-Class 344M is built to handle any adventure while keeping you comfortable every step of the way. Contact us today to confirm availability, features, and options. Specifications are subject to change without notice.

Used 2018 Grand Design Momentum M-Class 349M

$54,995.00
BRETZ RV & MARINE BILLINGS, MT
Billings, MT

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Grand Design Momentum M-Class 349M toy hauler highlights: Garage Dual Entry Loft Four-Seat Sofa Kitchen Island with Stools Fireplace Dual Enclosed Fuel Station Imagine your family of 9 riding dirt bikes, four wheelers, or even a jet ski at your favorite destination. This Momentum M-Class 349M fifth wheel toy hauler offers a 13' garage for your toys and a side man door for easy access when the ramp door is closed. You can store additional outdoor gear in the exterior unobstructed pass-through storage near the main entrance. Now imagine your family watching the big game on the 49" LED TV with a fireplace below while sitting on the bar stools at the kitchen island or on the four-seat sofa. Now stop imagining and start living the dream in this M-Class! With any Momentum M-Class toy hauler fifth wheel you will enjoy extraordinary living with extreme playtime with the Weather-Tek insulation for four seasons of protection, and a fully enclosed fuel pump station to keep the fun going the whole time. The Tuff-Ply garage flooring is gas and oil resistant, plus triple insulated. You will find 2,500 lb. rated flush-mount tie-downs to keep your toys secure while moving down the road. The interior includes a sofa with headrest and removable swivel table, a convection microwave, a central vacuum system with tools and a dust pan, and a satellite/solar roof access channel to mention a few highlights. Any Grand Design Momentum M-Class allows you to keep your active lifestyle no matter where you decide to stay!

Used 2017 Grand Design Momentum M-Class 350M

$48,991.00
GENERAL RV CENTER OCALA, FL
Ocala, FL

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This Momentum M-Class toy hauler fifth wheel by Grand Design has the luxury and space you desire when taking on the great outdoors! This dual entry 350M unit features triple slides, one and a half baths, and 11' of garage space, plus a loft bed too!Step inside the main entry door and notice all the home like features with an entertainment center including a LED TV with fireplace below. There is also a pantry/linen straight ahead, a large slide out 4-seat sofa to the left of the main entry door with a stowable table for comfortable seating during mealtimes and more. The kitchen offers all the amenities you need to enjoy spending time on the road. There is a slide out 18 cu. ft. refrigerator, three burner range with overhead microwave, and a counter peninsula along with a kitchen sink, and storage both above and below the counter.Head up the steps to the right of the entry door and find a side aisle bath including a toilet, vanity with sink, plus a shower with seat and skylight. The door at the head of the hall leads into the front bedroom which features a king size bed, nightstands, overhead storage, and a slide out wardrobe with dual drawers.Back through the unit to the rear cargo area first notice the single loft above along the front of the garage. There is a half bath featuring a toilet and sink for added convenience when you come in from a fun filled day.The 11' garage features a rear ramp door for ease in loading up the toys. When the toys are removed you have a happi-jack bed with dual roll-over sofas/table for added seating and sleeping space while camped. There is a side man door for easy access when the rear ramp door is closed or patio is raised.The exterior unobstructed pass through storage, plus the universal docking station provide extra conveniences when traveling.

Used 2017 Grand Design Momentum M-Class 350M

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PARRIS RV PAYSON
North Payson, UT

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This Momentum M-Class toy hauler fifth wheel by Grand Design has the luxury and space you desire when taking on the great outdoors! This dual entry 350M unit features triple slides, one and a half baths, and 11' of garage space, plus a loft bed too!Step inside the main entry door and notice all the home like features with an entertainment center including a LED TV with fireplace below. There is also a pantry/linen straight ahead, a large slide out 4-seat sofa to the left of the main entry door with a stowable table for comfortable seating during mealtimes and more. You can even choose the option with sofa recliners and a dinette, or smaller sofa with dinette in place of the 4-seat sofa if you like.The kitchen offers all the amenities you need to enjoy spending time on the road. There is a slide out 18 cu. ft. refrigerator, three burner range with overhead microwave, and a counter peninsula along with a kitchen sink, and storage both above and below the counter.Head up the steps to the right of the entry door and find a side aisle bath including a toilet, vanity with sink, plus a shower with seat and skylight. The door at the head of the hall leads into the front bedroom which features a queen size bed or choose a king, nightstands, overhead storage, and a slide out wardrobe with dual drawers.Back through the unit to the rear cargo area first notice the single loft above along the front of the garage. There is a half bath featuring a toilet and sink for added convenience when you come in from a fun filled day.The 11' garage features a rear ramp door for ease in loading up the toys. When the toys are removed you have an option of adding a happi-jack bed with dual roll-over sofas/table for added seating and sleeping space while camped. There is a side man door for easy access when the rear ramp door is closed or patio is raised.The exterior unobstructed pass through storage, plus the universal docking station provide extra conveniences when traveling. You can even choose an optional exterior entertainment center with LED TV and DVD, an optional Onan 5.5KW gasoline generator, and more!

Used 2017 Grand Design Momentum M-Class 350M

$54,995.00
GENERAL RV CENTER WIXOM, MI
Wixom, MI

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This Momentum M-Class toy hauler fifth wheel by Grand Design has the luxury and space you desire when taking on the great outdoors! This dual entry 350M unit features triple slides, one and a half baths, and 11' of garage space, plus a loft bed too!Step inside the main entry door and notice all the home like features with an entertainment center including a LED TV with fireplace below. There is also a pantry/linen straight ahead, a large slide out 4-seat sofa to the left of the main entry door with a stowable table for comfortable seating during mealtimes and more. The kitchen offers all the amenities you need to enjoy spending time on the road. There is a slide out 18 cu. ft. refrigerator, three burner range with overhead microwave, and a counter peninsula along with a kitchen sink, and storage both above and below the counter.Head up the steps to the right of the entry door and find a side aisle bath including a toilet, vanity with sink, plus a shower with seat and skylight.Back through the unit to the rear cargo area first notice the single loft above along the front of the garage. There is a half bath featuring a toilet and sink for added convenience when you come in from a fun filled day.The exterior unobstructed pass through storage, plus the universal docking station provide extra conveniences when traveling.

Used 2019 Grand Design Momentum M-Class 351M

$39,999.00
GENERAL RV CENTER OCALA, FL
Ocala, FL

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Grand Design Momentum M-Class 351M toy hauler highlights: Loft Dual Entry Four-Seat Sofa Kitchen Island w/ Stools Dual Enclosed Fuel Station When the outdoors is all you think about, and you are looking for a weekend thrill, choose this Momentum M-Class 351M toy hauler fifth wheel by Grand Design. You will find plenty of space for a few off-road toys as well as there is plenty of comfortable living space throughout. The garage features 11' of space for an ATV or dirt bikes, plus includes a half bath. There are also plenty of windows providing natural lighting in each area. The kids are sure to enjoy eating at the kitchen island on the bar stools, or watching the 49" LED TV above the fireplace. There are many more standard features to see! With any Momentum M-Class toy hauler fifth wheel you will enjoy extraordinary living with extreme playtime with the Weather-Tek insulation for four seasons of protection, and a fully enclosed fuel pump station to keep the fun going the whole time. The Tuff-Ply garage flooring is gas and oil resistant, plus triple insulated. You will find 2,500 lb. rated flush-mount tie-downs to keep your toys secure while moving down the road. The interior includes a sofa with headrest and removable swivel table, a convection microwave, a central vacuum system with tools and a dust pan, and a satellite/solar roof access channel to mention a few highlights. Any Grand Design Momentum M-Class allows you to keep your active lifestyle no matter where you decide to stay!

New and used Grand Design RVs for sale

New 2026 Grand Design Momentum M-Class 344M

Call for price

New 2025 Grand Design Momentum M-Class 344M

$104,989.00

New 2026 Grand Design Momentum M-Class 344M

$143,295.00

New 2026 Grand Design Momentum M-Class 344M

$165,857.00

New 2025 Grand Design Momentum M-Class 344M

$99,977.00

Used 2018 Grand Design Momentum M-Class 349M

$54,995.00

Used 2017 Grand Design Momentum M-Class 350M

$48,991.00

Used 2017 Grand Design Momentum M-Class 350M

Call for price

Used 2017 Grand Design Momentum M-Class 350M

$54,995.00

Used 2019 Grand Design Momentum M-Class 351M

$39,999.00

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