New and used momentum RVs for sale

Used 2021 Grand Design Momentum M-Class 398M

$86,995.00
BRETZ RV & MARINE MISSOULA, MT
Missoula, MT

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Grand Design Momentum M-Class toy hauler 398M highlights: Fireplace 18' Separate Garage Kitchen Island Dual Entry Doors Overhead Loft Bed Universal Docking Station This Momentum M-Class toy hauler is decked out in luxurious features you will want on your next outdoor adventure! With 18' of cargo space and a rear ramp door, you can bring along your favorite off-road toys too. You will start each morning feeling clean and fresh after a good night's rest on the queen bed in the front private bedroom and showering in the sunken tub with seat and skylight above. The kitchen has everything you will need to create home-cooked meals as well as a kitchen island with two bar stools and a USB charging port. Grab a snack from the kitchen pantry and relax on the four-seat sofa slide with a storable table to set your food on. The garage area has an overhead loft bed, space to add the two sets of optional Happi-Jac rollover sofas, and a prepped space for the optional washer and dryer, plus you can even add the optional half bathroom! If you would prefer to have a residential refrigerator, you should check out model 398M-R! Live big and play even harder with any one of these Momentum M-Class toy hauler fifth wheels by Grand Design! The CRE3000 MORryde® suspension system improves its towability with a smoother tow and better protects from damaging road shock. Unlike many other toy haulers, Momentum features an exclusive garage floor design with an R-40 triple insulation in the garage floors and a Weather-Tek insulation throughout the roof, main floor, and side walls. Pump up the volume and shake things up with the optional Rockford Fosgate speaker package that comes with a 12" subwoofer and a 300W amp. You will also enjoy the fully enclosed fuel pump station, the door-side exterior spray port, and the four mandatory packages full of extra features that will make your next camping adventure luxurious!

Used 2024 Grand Design Momentum M-Class 398M

$85,777.00
A&L RV SALES JACKSON, TN
Jackson, TN

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Grand Design Momentum M-Class toy hauler 398M highlights: 18' Separate Garage Bedroom Wardrobe Slide Four-Seat Super Sofa Kitchen Island with Bar Stools Dual Entry Doors Flip Up Pet Dish Load up your toys, gear, clothes and food to enjoy some off-road fun with your toys and friends! Once at the RV park, unload your toys and set up the three slide outs and two awnings, and begin planning your trail rides! You might decide to make a meal or snack in the combined kitchen and main living area which offers all the appliances you need, plus a kitchen island with two bar stools, a pantry, an LED TV with a fireplace below, plus a slide out four-seat sofa. The garage even offers sofas and an overhead bed plus the option to add two additional Happi-Jac rollover sofas with tables with a top bed if you want seating and sleeping space. The overhead loft bed provides sleeping space as well. You will love the shower with a seat in the full bathroom with a space saving sliding door, and the front bedroom can be your escape. There is a queen bed, a slide out wardrobe and USB charging outlets. 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 399M

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MESA, AZ
Mesa, AZ

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Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island Hybrid Desk/Dinette Unobstructed Pass-Thru Storage Side Patio This toy hauler has all the comfort and convenience you could ask for! Once you have unloaded your toys from the 12' 6" separate garage, you can start lunch on the exterior griddle located by the side patio. There is also a 65" TV here and a 1.7 cu. ft. refrigerator to entertain guests! And if you have guests staying over, you can choose to add the optional Liftsuite system with underside can lights in the garage. If the weather isn't cooperating, you can make meals in the fully equipped interior kitchen, complete with an island, pantry, pull-out countertop extension and more. An L-shaped sofa with recliners is in perfect view of the 50" TV and fireplace, and there is even a hybrid desk/dinette with windows where you can get some work done if needed. Head towards the front to freshen up in the full bath before heading to bed in the private bedroom. Here, you'll find a queen bed slide out with an optional king bed, a large closet with washer and dryer prep, plus a dresser with TV prep if you want the option to watch movies in bed! The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. The MORryde CRE3000 suspension system and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops! *All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn Company locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes freight, sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly. 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.

New 2026 Grand Design Momentum M-Class 399M

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LITTLE DEALER OF MESA, AZ
Mesa, AZ

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Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island Hybrid Desk/Dinette Unobstructed Pass-Thru Storage Side Patio This toy hauler has all the comfort and convenience you could ask for! Once you have unloaded your toys from the 12' 6" separate garage, you can start lunch on the exterior griddle located by the side patio. There is also a 65" TV here and a 1.7 cu. ft. refrigerator to entertain guests! And if you have guests staying over, you can choose to add the optional Liftsuite system with underside can lights in the garage. If the weather isn't cooperating, you can make meals in the fully equipped interior kitchen, complete with an island, pantry, pull-out countertop extension and more. An L-shaped sofa with recliners is in perfect view of the 50" TV and fireplace, and there is even a hybrid desk/dinette with windows where you can get some work done if needed. Head towards the front to freshen up in the full bath before heading to bed in the private bedroom. Here, you'll find a queen bed slide out with an optional king bed, a large closet with washer and dryer prep, plus a dresser with TV prep if you want the option to watch movies in bed! The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. The MORryde CRE3000 suspension system and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops! *All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn Company locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes freight, sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly. 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.

New 2026 Grand Design Momentum M-Class 399M

$164,595.00
TROY OH
Troy, OH

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Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island Hybrid Desk/Dinette Unobstructed Pass-Thru Storage Side Patio Discover the ultimate combination of luxury, versatility, and adventure with the New 2026 Grand Design Momentum M-Class 399M, a top-of-the-line toy hauler designed for families, outdoor enthusiasts, and full-time RVers who demand space, comfort, and premium features. With its innovative layout, high-quality construction, and Grand Design’s reputation for reliability, the 399M is built for those who want the best in RV living and towing capability. The rear garage area is a highlight of the 399M, perfect for transporting motorcycles, ATVs, or other outdoor toys. This space converts effortlessly into additional sleeping or living areas with drop-down sofas and overhead beds, providing flexibility for family, guests, or extra storage. The main living area features theater seating, a tri-fold sofa, and a centrally located entertainment center with a large TV, creating a cozy yet open space for relaxation and socializing. Large panoramic windows fill the interior with natural light, making the space bright, inviting, and connected to the outdoors. The chef-inspired kitchen is equipped for convenience and efficiency, featuring solid-surface countertops, a three-burner cooktop, microwave, residential refrigerator, and ample cabinetry for storage. The dinette or optional free-standing table provides a versatile area for meals, games, or remote work, ensuring the Momentum 399M is as functional as it is stylish. The front master suite offers a private retreat with a walk-around king bed, dual wardrobes, overhead storage, and privacy doors. The full bathroom includes a spacious shower, vanity, and thoughtfully designed storage, providing residential-level comfort no matter where the road takes you. Built with Grand Design’s signature quality, the Momentum M-Class 399M boasts a durable chassis, premium components, and superior construction for long-lasting performance. Every feature is designed to make your travel experience smooth, comfortable, and worry-free. Top Reasons to Buy the Momentum M-Class 399M: Rear garage with convertible space for toys or extra sleeping areas Spacious living area with theater seating and entertainment center Chef-inspired kitchen with solid-surface countertops and storage Private front master suite with walk-around king bed Built with Grand Design’s durable construction and high-quality components Why Buy from Campers Inn RV:Since 1966, Campers Inn RV has been a trusted leader in the RV industry, offering transparent pricing, expert guidance, and one of the largest selections of high-end toy haulers in the nation. Their knowledgeable team ensures a smooth, stress-free buying experience and provides ongoing support long after your purchase. Choosing Campers Inn RV means gaining a reliable partner dedicated to helping you enjoy every mile of your adventures with confidence, comfort, and peace of mind.

New 2026 Grand Design Momentum M-Class 399M

$164,995.00
KNOXVILLE TN

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Grand Design Momentum fifth wheel toy hauler 399M highlights: Front Private Bedroom Kitchen Island Hybrid Desk/Dinette Unobstructed Pass-Thru Storage Side Patio This toy hauler has all the comfort and convenience you could ask for! Once you have unloaded your toys from the 12' 6" separate garage, you can start lunch on the exterior griddle located by the side patio. There is also a 65" TV here and a 1.7 cu. ft. refrigerator to entertain guests! And if you have guests staying over, you can choose to add the optional Liftsuite system with underside can lights in the garage. If the weather isn't cooperating, you can make meals in the fully equipped interior kitchen, complete with an island, pantry, pull-out countertop extension and more. An L-shaped sofa with recliners is in perfect view of the 50" TV and fireplace, and there is even a hybrid desk/dinette with windows where you can get some work done if needed. Head towards the front to freshen up in the full bath before heading to bed in the private bedroom. Here, you'll find a queen bed slide out with an optional king bed, a large closet with washer and dryer prep, plus a dresser with TV prep if you want the option to watch movies in bed! The Momentum fifth wheel toy haulers by Grand Design are built for four seasons of travel with your off-road toys and include luxurious accommodations throughout for extreme living! Each is constructed to a superior standard with the fully enclosed and heated underbelly and storage area, the 5-sided aluminum cage, and the triple insulated garage floor. The MORryde CRE3000 suspension system and rubber pin box, plus the upgraded axle hangers provide the performance and smooth towing you desire, while the interior offers luxury such as color changing LED accent lighting, hardwood cabinet doors with hidden hinges, and a central vacuum system. Each toy hauler also includes four packages, including the Garage Package with Tuff-Ply gas and oil-resistant flooring, the Weather-Tek Package with a Stealth AC System, and the Interior Luxury Package with solid surface countertops!

New 2026 Grand Design Momentum M-Class 399M

$164,995.00
LITTLE DEALER OF MESA, AZ
Mesa, AZ

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NEW 2026 Grand Design Momentum 399M Toy Hauler — Elevate Every Adventure If you’ve been searching for a fifth wheel toy hauler that checks every box—power, luxury, workspace, entertainment, and real off-grid capability—the Momentum 399M was built for you. Grand Design’s flagship toy hauler welcomes thrill-seekers and full-timers alike with refined residential comforts and rugged durability that can keep up with wherever your journey leads. Load Up, Level Up, and Live LargeThe 12' 6" separate garage gives you the freedom to bring quads, dirt bikes, kayaks, e-bikes—anything that fuels your weekends. Once unloaded, transform the space into an extra suite with the optional Liftsuite system, complete with under-glow accent lights for a premium touch. And when you want to take the party outside, the side patio becomes your open-air living room—outfitted with a 65" TV, a 1.7 cu. ft. fridge, and an exterior griddle to keep everyone fed and smiling. A True Chef's Kitchen… Indoors or OutdoorsRainy day? No problem. The interior kitchen is a culinary playground, featuring a kitchen island, pull-out countertop extension, deep storage, pantry, and upscale appliances. Whether you’re prepping trail-day snacks or hosting friends for dinner, you’ll have the space and style to do it right. Relaxation Worth Coming Home ToKick back in the main living area where an L-shaped reclining sofa faces a 50" TV and ambient fireplace—the perfect setup after a long day on the trails. Need to squeeze in some work? The innovative hybrid desk/dinette with panoramic windows gives you a scenic remote-work station without sacrificing dining space. Your Private Bedroom RetreatAt the front of the coach, unwind in the spacious master suite with a queen bed slide (optional king!), a large wardrobe with washer/dryer prep, and a dresser with TV prep. Whether you’re weekend camping or living full-time, this bedroom delivers the storage, comfort, and separation you need. Built for All Seasons & All TerrainsEvery Momentum is engineered for durability and all-weather performance with a fully enclosed/heated underbelly, 5-sided aluminum cage, and triple-insulated garage floor. Ride smoother with the MORryde CRE3000 suspension, rubber pin box, and upgraded axle hangers. Inside, enjoy upscale touches like hardwood cabinet doors, hidden hinges, solid surface countertops, color-changing LED lighting, and even a central vacuum system. Four premium packages—including the Garage Package, Weather-Tek Package, and Interior Luxury Package—ensure you don’t just arrive… you arrive in style. Your Toys Deserve a Better Home. So Do You.If you’ve dreamed of a toy hauler that works hard, plays harder, and pampers you at the end of every drive, the 2026 Momentum 399M is the one you’ll want to see first—and last. Make it yours today at Little Dealer Little Prices—where your next adventure begins at a price you’ll feel great about. INVENTORY IMAGES MAY BE SHOWN. COLORS AND SPECS MAY VARY. CALL FOR DETAILS.

New 2026 Grand Design Momentum M-Class 399M

$164,995.00
MESA, AZ
Mesa, AZ

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NEW 2026 Grand Design Momentum 399M Toy Hauler — Elevate Every Adventure If you’ve been searching for a fifth wheel toy hauler that checks every box—power, luxury, workspace, entertainment, and real off-grid capability—the Momentum 399M was built for you. Grand Design’s flagship toy hauler welcomes thrill-seekers and full-timers alike with refined residential comforts and rugged durability that can keep up with wherever your journey leads. Load Up, Level Up, and Live LargeThe 12' 6" separate garage gives you the freedom to bring quads, dirt bikes, kayaks, e-bikes—anything that fuels your weekends. Once unloaded, transform the space into an extra suite with the optional Liftsuite system, complete with under-glow accent lights for a premium touch. And when you want to take the party outside, the side patio becomes your open-air living room—outfitted with a 65" TV, a 1.7 cu. ft. fridge, and an exterior griddle to keep everyone fed and smiling. A True Chef's Kitchen… Indoors or OutdoorsRainy day? No problem. The interior kitchen is a culinary playground, featuring a kitchen island, pull-out countertop extension, deep storage, pantry, and upscale appliances. Whether you’re prepping trail-day snacks or hosting friends for dinner, you’ll have the space and style to do it right. Relaxation Worth Coming Home ToKick back in the main living area where an L-shaped reclining sofa faces a 50" TV and ambient fireplace—the perfect setup after a long day on the trails. Need to squeeze in some work? The innovative hybrid desk/dinette with panoramic windows gives you a scenic remote-work station without sacrificing dining space. Your Private Bedroom RetreatAt the front of the coach, unwind in the spacious master suite with a queen bed slide (optional king!), a large wardrobe with washer/dryer prep, and a dresser with TV prep. Whether you’re weekend camping or living full-time, this bedroom delivers the storage, comfort, and separation you need. Built for All Seasons & All TerrainsEvery Momentum is engineered for durability and all-weather performance with a fully enclosed/heated underbelly, 5-sided aluminum cage, and triple-insulated garage floor. Ride smoother with the MORryde CRE3000 suspension, rubber pin box, and upgraded axle hangers. Inside, enjoy upscale touches like hardwood cabinet doors, hidden hinges, solid surface countertops, color-changing LED lighting, and even a central vacuum system. Four premium packages—including the Garage Package, Weather-Tek Package, and Interior Luxury Package—ensure you don’t just arrive… you arrive in style. Your Toys Deserve a Better Home. So Do You.If you’ve dreamed of a toy hauler that works hard, plays harder, and pampers you at the end of every drive, the 2026 Momentum 399M is the one you’ll want to see first—and last. Make it yours today at Little Dealer Little Prices—where your next adventure begins at a price you’ll feel great about. INVENTORY IMAGES MAY BE SHOWN. COLORS AND SPECS MAY VARY. CALL FOR DETAILS.

New 2025 Grand Design Momentum M-Class 414M

$107,950.00
PLEASURELAND RV WEST SALEM, WI
West Salem, WI

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Grand Design Momentum M-Class 414M toy hauler fifth wheel highlights: Queen Bed Slide Out U-Shaped Kitchen Counter Theater Seating Kitchen Pantry 14' Separate Garage Flip-Up Pet Dish Any time spent in this spacious toy hauler will be time well spent! The 14' garage includes an overhead loft bed and a flip-up pet dish for your furry friends. If you're needing more sleeping space, you might want to choose the optional Happi-Jac rollover sofas and table with a drop down bed and optional half bath! Once you enter in the main living area, you can relax on the tri-fold sofa or theater seating across from the fireplace, and there is a free-standing dinette if you want to play a game or two. The chef of your group will love the generous counter space in the kitchen, and the dual entry bath will let everyone stay clean throughout your trip! Head to the front master bedroom to enjoy the queen bed slide out with an optional king bed, a slide top dresser with TV prep, plus a large front closet, complete with washer and dryer prep! 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 a, 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: Luxury Interior Package Exterior Package Garage Package Weather-Tek Insulation Package Under Unit LED Light Kit Bedroom A/C Kitchen Power Fan w/Rain Sensor Garage LED HD TV Auxiliary Fresh Water Tank 20 cf. 12V Refrigerator TravlFi On-Board WiFi Ready Rockford Fosgate Stage 1 Stereo 500 Watts Int/Ext Speakers w/10" Powered Sub King Bed Upgrade Yamaha 6KW Gasoline Generator Gen II 3 Season Door w/Sliding Windows 3rd A/C Heat Pump A/C 1/2 Bath in Garage Happi-Jac Electric Bunk System w/Folding Sofas Rear Aluminum Deck System w/Rear Power Awning Patio Chairs Exterior Entertainment Solar+ Package 2000w Inverter Dual 330W Panels 50 AMP Controller 2 Dock Ports Bluetooth Module Upgraded Cooper H-Rated Tires w/17.5" Wheels (triple axle) SafeRide RV Roadside Assistance 7K Axles w/ABS Drum Brakes LIST OF OPTIONS MAY NOT BE ACCURATE

New 2025 Grand Design Momentum M-Class 414M

$114,965.00
CAMPERS INN RV ACWORTH, GA
Acworth, GA

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Experience the ultimate adventure with the Grand Design Momentum M-Class 414M Toy Hauler Fifth Wheel — designed for comfort, convenience, and luxury on the road! Key Features: Queen Bed Slide-Out for extra sleeping space Spacious U-Shaped Kitchen Counter perfect for meal prep Theater Seating to relax after a day of fun Large Kitchen Pantry for all your essentials 14’ Separate Garage with overhead loft bed and flip-up pet dish for your furry companions This spacious toy hauler makes every moment memorable! The 14' garage offers ample storage space for your gear, plus an overhead loft bed for additional sleeping capacity. For those looking for even more sleeping room, choose the optional Happi-Jac rollover sofas with a drop-down bed and an optional half bath. In the main living area, you’ll find theater seating and a tri-fold sofa across from the cozy fireplace, creating the perfect place to unwind. The free-standing dinette makes game time or dining a breeze! The chef in your group will love the expansive kitchen with generous counter space, and the dual-entry bath ensures everyone stays clean on the go. The front master bedroom is a peaceful retreat with the queen bed slide-out (or upgrade to a king bed), a slide-top dresser with TV prep, and a spacious closet with washer and dryer prep. Built for Luxury and Durability With every Momentum M-Class toy hauler, you’ll experience true luxury and craftsmanship. Designed for all elements, these units feature: Thermal Roof Design for better insulation Triple Insulated Main and Garage Floors to keep you comfortable year-round Rail-Tite Underbelly Seal for superior protection Wide 8' 5" Body Chassis with no wheel wells and dovetail entry for easy loading Plus, enjoy the Stealth A/C system for exceptional cooling and the CRE3000 Suspension System for a smooth tow. Inside, the luxury continues with stainless steel cooktops, color-changing LED accent lighting, a fiberglass shower with glass door, and solid surface countertops. The Grand Design Momentum M-Class 414M is your gateway to a luxurious, hassle-free adventure—where every detail is designed with you in mind. Ready to take your RV experience to the next level? Contact us today and see why the Momentum M-Class is the choice for discerning travelers! This price reflects the manufacturer's minimum advertised pricing policy. Contact us today for your exclusive, personalized quote—our best deals are just a conversation away!

New and used momentum RVs for sale

Used 2021 Grand Design Momentum M-Class 398M

$86,995.00

Used 2024 Grand Design Momentum M-Class 398M

$85,777.00

New 2026 Grand Design Momentum M-Class 399M

Call for price

New 2026 Grand Design Momentum M-Class 399M

Call for price

New 2026 Grand Design Momentum M-Class 399M

$164,595.00

New 2026 Grand Design Momentum M-Class 399M

$164,995.00

New 2026 Grand Design Momentum M-Class 399M

$164,995.00

New 2026 Grand Design Momentum M-Class 399M

$164,995.00

New 2025 Grand Design Momentum M-Class 414M

$107,950.00

New 2025 Grand Design Momentum M-Class 414M

$114,965.00

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