2023 Grand Design Momentum
2023 Grand Design Momentum 399TH 43' 1" Fifth Wheel Toy Hauler. 3 Slide Outs, 3 Awnings, Sleeps 9, 3 A/C Units.
The 2023 Grand Design Momentum 399TH is a luxury toy hauler fifth wheel that combines high-end residential comfort, premium garage versatility, and rugged adventure capability in an impressive 43' 1" floorplan. Designed for serious outdoor enthusiasts and full-time travelers alike, this Momentum delivers the perfect blend of cargo-carrying functionality and upscale living accommodations for extended adventures.
One of the standout features of the 399TH is its innovative rear garage design, offering a spacious cargo area perfect for motorcycles, golf carts, ATVs, or additional storage while still maintaining a luxurious rear living layout. The garage easily converts into a versatile patio and entertainment space, creating the perfect setup for relaxing at camp or hosting friends and family after a day of adventure.
Inside, the spacious triple-slide floorplan creates a beautifully appointed living area with premium theater seating, reclining sofa, entertainment center, fireplace, and large panoramic windows that fill the coach with natural light. Grand Design‘s upscale finishes, hardwood cabinetry, solid-surface countertops, and modern décor give the Momentum a true residential luxury feel throughout.
The gourmet kitchen is fully equipped for extended travel with a residential refrigerator, large island, convection microwave, 4-burner cooktop with oven, pantry storage, stainless-steel appliances, and abundant cabinetry for all your cooking essentials. A freestanding dinette provides a comfortable space for meals, entertaining, or remote work while traveling.
Up front, the private master suite features a queen bed, spacious wardrobe slide, dresser storage, washer/dryer, and overhead cabinetry for maximum comfort and convenience. The luxury bathroom includes a large glass-enclosed shower with skylight, porcelain toilet, vanity, linen storage, and residential-style finishes that make life on the road feel like home.
Built for serious adventure and four-season capability, the Momentum includes Grand Design‘s Weather-Tek insulation package, heated and enclosed underbelly, hydraulic auto-leveling, generator prep, fuel station, solar prep, three power awnings with LED lighting, heavy-duty suspension, and massive pass-through storage. The durable construction and premium towing stability make it ideal for long-distance travel and extended stays.
Additional Features:
Convection Microwave Oven
Fireplace
3 TVs
CD/Stereo
Cable Ready
Washer Dryer
Generator
Furnace
Smoke Detector
CO Detector
No Pets
No Smoking

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Once you've narrowed down your RV search, we recommend considering a 3rd party inspection of the unit. This will allow you to set eyes on the vehicle and determine it's mechanical condition, without ever having to leave home.
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An RV warranty, like those offered by Wholesale Warranties, will step in to pay for these costly repairs. From your engine and transmission down to your leveling jacks, slide-outs, and appliances, these policies will take care of the repair bill, and get you back on the road where you belong! Click here to learn more about RV protection.