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Grand Design Momentum M Class 398M floorplan

Grand Design Momentum M Class 398M Toy Hauler Fifth Wheels for Sale

Step into the world of luxury and adventure with the 2025 Grand Design Momentum M-Class 398M. This stunning RV is designed for those who crave both comfort and excitement on the road. With a generous length of nearly 44 feet, this model offers ample space for up to 11 sleepers, making it perfect for family trips or group getaways. The thoughtful floorplan features a center kitchen and living area, ensuring easy access and a cozy atmosphere for gatherings. The kitchen is equipped with a full-size refrigerator, convection cooking, and three cooktop burners, ready to handle any culinary challenge you throw its way. The Momentum M-Class 398M doesn’t just stop at a luxurious interior. Its 18-foot garage is a game-changer for those who love to bring along their toys or need extra storage space. The garage also includes a convenient half bath and optional Happy-Jac rollover sofas, making it a versatile area for both relaxation and practicality. The RV's two powered retractable awnings offer more than 34 feet of outdoor living space, perfect for enjoying the great outdoors in style. With a washer and dryer, automatic heater, and a robust 60-gallon fuel capacity, this RV ensures you have all the comforts of home while exploring the open road. For more details and to experience this marvel firsthand, visit your nearest General RV Dealership.


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General RV works hard to ensure the accuracy of all its listings however we are not responsible for any misprints, typos, or errors found in our website pages. Manufacturer-provided pictures, specifications and features may be used as needed. Inventory shown may be only a partial listing of the entire inventory. Please contact us at 888-436-7578 for availability as our inventory changes rapidly.

*All RV prices exclude tax, title, registration and fees, including documentary service fees. All payments are with approved credit through dealer lending source. Advertised monthly payment is based on 20% cash down, plus tax, title, registration and fees, at 7.99% APR for 96 months on finance amounts under $10K, at 7.99% APR for 144 months on finance amounts from $10K to $25K, at 7.99% APR for 180 months on finance amounts from $25K to $50K, and at 7.99% APR for 240 months on amounts over $50K. $89 monthly payment based on purchase price of $9,999 with 0% down at 6.99% APR for 180 months. For select models only. Rate and payments are subject to change at any time. Conditions apply. See dealer for details.