2021 GRAND DESIGN MOMENTUM FIFTH WHEEL
VEHICLE SPECIFICATIONS
VIN 573FM4539M1119893
Mileage -
Stock No. 119893
Engine -
Trim 399TH
Transmission -
Drivetrain -
Exterior Color -
MPG - / -
Body Type TOY HAULER
2021 Grand Design Momentum 399TH Toy Hauler Fifth Wheel
Take your adventures to the next level with this loaded 2021 Grand Design Momentum 399TH Fifth Wheel Toy Hauler. Built for luxury living and serious hauling capability, this premium toy hauler offers an incredible floorplan with a 13’ garage, side patio, dual entry, 1.5 baths, and room for the whole crew. Whether you're headed to the campground, racetrack, or off-road trails, the Momentum 399TH delivers comfort, style, and performance.
Inside you’ll find a spacious residential-style interior with multiple slide-outs, a large living area, fireplace, solid surface countertops, premium cabinetry, and sleeping space for up to 7 people. The garage area features Happi-Jac electric bunks with sofas underneath, plus a rear ramp patio system perfect for entertaining. The master bedroom offers a king bed and tons of storage.
This Momentum is built for extended trips with massive holding tanks, triple axles, generator prep, solar package, and all-season insulation.
Highlights:
• 13’ Separate Garage
• Fold-Down Side Patio
• Rear Ramp Patio System
• 1.5 Bathrooms
• King Bed Master Suite
• Happi-Jac Electric Bed System
• Loft Sleeping Area
• Residential Refrigerator
• Fireplace and Large LED TVs
• Exterior Entertainment Center
• Triple Axle Setup
• Auto Leveling System
• Washer/Dryer Prep
• Generator and Solar Equipped
Specifications:
• Length: 43’ 1”
• Dry Weight: Approx. 15,900 lbs
• GVWR: 20,000 lbs
• Hitch Weight: Approx. 3,400 lbs
• Fresh Water Capacity: 155 Gallons
• Gray Water Capacity: 104 Gallons
• Black Water Capacity: 104 Gallons
• Garage Length: 13’
• Sleeps: Up to 7
• Slide Outs: 3
• Fuel Station Capacity: 60 Gallons
• Dual Power Awnings
• 30,000 BTU Air Conditioning
• 35,000 BTU Furnace
If you are looking for a high-end luxury toy hauler with incredible space, premium features, and the ability to bring all your toys along, this 2021 Grand Design Momentum 399TH is ready for your next adventure.
Financing options available. Trades welcome. Contact us today for more information or to schedule a showing.
Specifications sourced from RV industry listings and manufacturer data.
LOAN CALCULATOR
Payment amount is an estimate for illustrative purposes only. This is not an advertisement or offer of credit. Estimated payment excludes taxes, title, registration, license fees, insurance, and additional options. Payment amount may differ based on cash or trade in value due at signing, term, fees, special offers, and applicable tax rate. You must apply for and qualify for credit. Not all customers will qualify. Please contact RV DEPOT LLC for further information.
