2025 Grand Design Momentum M-Class Toy Haulers for sale

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Grand Design Momentum M-Class overview


The 2025 Grand Design Momentum M-Class series is a lightweight alternative within the company's stable of 5th wheel Toy Haulers. Featuring many of the same features as the standard Momentum's, the M-Class may be lighter in weight, which adds to the number of towable options, but it's no lightweight when it comes to pampering its owner with luxury and off-grid capability. With six different floorplans, double or triple axles, and lengths from 38 feet to 44 feet, the M-Class gives its users a lot of options for exploring the great outdoors. The M-Class is known for its large garages that can fit all of your toys. The other rooms are also very nice and will make your stay comfy no matter where you are. As you ski in the Alps, look up at the stars by the river, or run a race in the desert, the Momentum M-Class will make you feel like you're at home.

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Grand Design Momentum M-Class 349M floorplan
Grand Design Momentum M-Class 351MS floorplan
Grand Design Momentum M-Class 381MS floorplan
Grand Design Momentum M-Class 395MS floorplan
Grand Design Momentum M-Class 398M
Grand Design Momentum M-Class 414M floorplan

The 2025 Grand Design Momentum M-Class has a collection of 6 floorplans, giving owners multiple options to get out and explore. First up is the 349M, which features a garage that’s up to 13 feet in length. Under the upper bunk bed, there are also washer and dryer preparations, and a half bathroom is optional. A large 4-person couch in the dining area, from which you can see the large entertainment center, changes things up. A deep tub/shower in the bathroom and a skylight providing more than 6 feet of headroom make the 349M the first Momentum M-Class car to have these features. Lastly, a gas stop with a 60-gallon tank is needed for the 349M. The 351MS moves the washer and dryer to the master bedroom, which now has two large closets on either side of the front cap. The half bath in the garage area is now standard. The counter has room for two people, and the island has a big stainless steel sink. With a 15-foot garage, the 381MS is the first Momentum M-Class that gives you more space for your toys. There is also an interesting flip-up cabinet in the master bedroom that is ready for your favorite high-definition TV. The 395MS Momentum moves the furniture around to make the living room and kitchen separate. It also adds privacy with two separate pullout chairs and theater seats. Instead of an island, you get a very big L-shaped counter top and a freestanding dinette where you can prepare and eat your meals. All of these features are available on the biggest M-Class, the 398M. It also has an 18-foot garage, two full Happi-Jack bunks, and enough space for up to eight people to sleep. The latest car in the M-Class family is the 414M. The garage is one of a kind because it has both Happi-Jack bunks and a different overhead bed system. You can even raise the extra bunk bed to make more space in the garage. The gas station, which can hold 60 gallons, is next to the workshop. There are a lot of shelves and drawers in the bedroom, and it's easy to get to the bathroom from there. The front cap has a large room for setting up the washer and dryer and beautiful barn-style sliding doors. Go downstairs to the kitchen. There is a full-sized butler's pantry, a kitchen island, and a big fridge that holds 20 cubic feet. The middle living room is only a step away. It has a Tri-Fold couch, theater-style seats, a four-person table, and a really cool TV that lifts up and out of the fireplace.

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Grand Design Momentum M-Class  exterior


The 2025 Grand Design Momentum M-Class expands your outdoor living experience with several innovative items. First, let’s talk about shade. All M-Class come with dual-powered awnings, one for the garage and one for the main coach, controlled from the panel inside. They keep the sun and rain at bay, so you can extend your time outdoors. And the awnings have a hidden LED lighting strip to keep your evenings illuminated. The 336M is the only M-Class that only has one set of entry steps between the garage and the living area. The other M-Classes have two different entrances, one for the garage and one for the coach. Both have metal quad entry steps. Spray tubes by the doors clean your shoes before you bring dirt inside. Part of the required external package is the All-in-One external utility center, which lets you handle all of your water and flush tanks. Because each exterior storage container has a zero-degree rating and metal slam locks, the cold stays outside. Our Momentum's lines and water tanks are safe because they are triple insulated, sealed off from the air, heated, and even have 12 volt tank warmers. Another new feature is the blue LED lights under the unit in the front and back. The shine from the RV's undercarriage makes your campground stand out. The Rockford Fosgate speakers, which work with Bluetooth, have a 300-watt amplifier and a 12-inch subwoofer that make deep bass. Another feature is the toy hauler-specific fuel station, which can hold up to 60 gallons of fuel. This lets you carry all the fuel your toys need.

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Grand Design Momentum M-Class interior


The 2025 Grand Design Momentum M-Class family has some of the most spacious and luxurious interiors you will find in a fifth-wheel toy hauler. Let’s start with the garage area. M-Class protects with diamond plating on the garage sidewalls, tuff-ply gas and oil-resistant flooring, and 2500-pound tie-down mounts to keep your toys from sliding around. Additional sleeping is available with the Happi-Jack bunks system. The bunks can be raised or lowered by powered rails, so you can use the garage for storage or sleeping. Another set of ceiling beds with TVs makes even more space. The gourmet-style kitchens have the top-of-the-line Insignia line of ranges, which have 4 burner tops and 3.7 cubic feet of oven room. To get to the living area, open the door from the garage. It's crazy that these ovens can cook with 42,500 BTU of power. The large counter space is great for making meals or just resting, and models with islands offer even more. Stainless steel sinks with deep bowls come with tall taps and sprayers that are stained a bronze color. Large pantries and lots of ceiling cabinets make it easy to store a lot of dry goods. There are big, fluffy chairs in every living room that are great for relaxing on. In entertainment areas, you can find 49-inch HDTVs and 5,000 BTU electric fireplaces. Good brass is used to make the shower heads, sink fixtures, and fiberglass sunken tubs in the bathrooms. The room feels very fancy because it has real glass shower doors, real porcelain sinks, and skylights above the shower. The beautiful headboard and dressing table in a home design are just a few of the comforts that await you in the bedroom. Plugs for 110V and USB can be found on your desk to keep all of your electronics charged. Some M-Class examples come with large walk-in closets and are ready to have a washer and dryer put in. There is plenty of room for all of your clothes on the large shelves and drawers.

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Grand Design Momentum M-Class why buy

Why Buy

The 2025 Grand Design Momentum M-Class family of fifth-wheel toy haulers provides its owners with an exhaustive level of both luxury and off-grid usability, unrivaled in this class of RV’s. Designed to appeal to a greater audience, thanks to its lighter weight, the M-Class offers more towability and convenience than any others in its category. The M-Class is the most thoroughly inspected toy hauler available on the market thanks to Grand Design's strict manufacturing standards, with over 300 separate points of inspection occurring both at the factory and at their unique off-site pre-delivery facility. The guarantee and their ongoing customer service reflect their confidence in their commitment to quality. Regardless of how they utilize the M-Class, the 3-year structural warranty gives each owner peace of mind that they are well cared for. And the M-Class is designed for fun! It enables its owners to bring everything they require to enjoy a variety of situations and then to unwind and rest at the end of the day. There is a world of entertainment waiting for you outside the Momentum M-Class, so come and experience the thrill!

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