- SALE PRICE: $99,995
- List: $117,995
- You Save: $18,000
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43ft long
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15,900 lbs
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Sleeps 3
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3 slides
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Kitchen IslandBath and a Half
399TH Floorplan
Specifications
| Sleeps | 3 | Slides | 3 |
| Length | 43 ft 1 in | Ext Height | 13 ft 5 in |
| Hitch Weight | 3400 lbs | GVWR | 20000 lbs |
| Dry Weight | 15900 lbs | Fresh Water Capacity | 140 gals |
| Grey Water Capacity | 104 gals | Black Water Capacity | 104 gals |
| Tire Size | 17" | Furnace BTU | 40000 btu |
| Fuel Capacity | 60 gals | Available Beds | Queen |
| Refrigerator Size | 18 cu ft | Cooktop Burners | 3 |
| Number of Awnings | 2 | Axle Weight | 7000 lbs |
| Garage Size | 13 ft | LP Tank Capacity | 60 lbs |
| Water Heater Capacity | 12 gal | Water Heater Type | Gas/Electric |
| TV Info | LR 49" LED TV, BR 32" LED TV, Garage 32" LED TV, Ext. LED TV | Awning Info | 14' & 16' Power w/LED Lights |
| Axle Count | 3 | Washer/Dryer Available | Yes |
| Shower Type | Sunken Tub/Shower | Electrical Service | 50 amp |
| VIN | 573FM4539N1122102 |
Description
Used 2022 Grand Design Momentum 399TH – Luxury Toy Hauler Meets Family Adventure
Turn every getaway into an unforgettable experience with the Used 2022 Grand Design Momentum 399TH, a top-tier toy hauler that combines residential comfort, generous living space, and serious utility for adventurers who refuse to compromise. Whether you’re hauling ATVs, motorcycles, or outdoor toys, this Momentum model delivers strength, style, and comfort in one striking package.
Spacious, Functional Interior Designed for Real Living
Step inside and be impressed by the expansive floorplan that feels more like a luxury home than a traditional toy hauler. The sizeable living area features stylish seating, a slide-out that expands space for comfort, and wide panoramic windows that draw in natural light and scenic views. Plush furniture creates an inviting environment for relaxing, socializing, and making every moment on the road feel special.
The fully equipped kitchen rivals many residential spaces. With a residential-size refrigerator, three-burner stove, oven, microwave, and substantial counter space, meal prep becomes a joy rather than a chore. Thoughtful storage solutions keep cookware, utensils, and pantry items neatly organized, and the dining area offers plenty of room for meals, game nights, or planning tomorrow’s adventure.
Toy Hauler Flexibility Without Compromise
One of the standout features of the Momentum 399TH is its spacious garage area—designed to handle your toys and gear with ease. Whether you’re loading up off-road vehicles, bikes, or camping gear, this trailer’s oversized garage delivers durability and convenience. The adjustable tie-downs and ramp door make loading and unloading a breeze, while integrated storage keeps gear secure during travel.
The front master suite offers a private, restful retreat with a comfortable bed, generous storage, and a layout crafted for rest and relaxation. The full bathroom includes a shower with skylight, vanity, and toilet, giving you all the comforts of home no matter how rugged your journey. Interior and exterior storage compartments throughout the coach keep your belongings organized and accessible.
Entertainment and Comfort on Every Trip
With climate control systems to support year-round comfort and entertainment options throughout the interior, the Momentum 399TH isn’t just rugged—it’s rich in amenities. Whether you’re hosting movie night after a day in the outdoors or curling up with a book while the world goes by, this toy hauler offers living space that works for families, couples, and adventurers alike.
Why Buy This Used RV?
Choosing the Used 2022 Grand Design Momentum 399TH means you’re getting best-in-class features, quality construction, and residential comfort at a fraction of the price of a new unit. With its flexible garage design, generous living space, and upscale amenities, this toy hauler is perfect for families, thrill seekers, and anyone who wants to combine utility with comfort. Its strong build and thoughtful layout make it ideal for long trips, seasonal travel, and weekend adventures alike—offering you versatility and value in every mile.
Why Buy from Campers Inn RV?
At Campers Inn RV, we make RV ownership easy, supportive, and enjoyable. Every used RV in our inventory undergoes a comprehensive inspection to ensure it’s road-ready and dependable, so you can travel with confidence. Our experienced RV specialists provide personalized guidance to help you find the right model for your lifestyle and travel goals. We also offer flexible financing options tailored to your budget and ongoing support long after your purchase. With decades of industry experience and a nationwide network of locations and service partners, Campers Inn RV stands behind your adventure from day one and beyond.
The Used 2022 Grand Design Momentum 399TH delivers luxury, flexibility, and rugged capability in one exceptional toy hauler. Visit your local Campers Inn RV today to explore this model in person and start planning your next great adventure with confidence.
Features
Standard Features (2022)
Exterior
- Under Mount 17" Spare Tire
- 6-Point Hydraulic Leveling System
- MORryde® Pin Box
- Dual Pane Window Upgrade (Optional)
- Back-Up Camera (Camera Prep Standard) (Optional)
- Slide-Out Awning Toppers (Optional)
- Keyed Alike™ Ramp Door Latches
- 2nd Power Patio Awning w/ LED Lights
- 3rd Power Awning w/ LED Lights (Main Slide - 397TH) (Mandatory)
- Front and Back Under Unit Blue LED Light Kit (Mandatory)
- High-Gloss Gel Coat Exterior Sidewalls
- Full Paint Gel Coat Fiberglass Front Cap
- Full Body Paint (Optional)
- Door Side Exterior Spray Port
Construction
- Drop Frame Chassis (12" over 10")
- MORryde® CRE3000 Suspension System
- Upgraded Axle Hangers
Interior
- Interior Color Changing LED Accent Lighting
- Raised Panel Hardwood Cabinet Doors w/Hidden Hinges
- Sofa w/Headrest & Removable Swivel Tables (Includes Heat, Massage & LED Lighting Package)
- Central Vacuum System w/ Tools and Dust Pan
- Super Sofa Upgrade - IPO Theater Seats & Dinette (397TH, 399TH Only) (Optional)
- Plywood Drawer Bottoms
Kitchen
- Microwave
- 18 Cu. Ft. Refrigerator
- Residential Kitchen Faucet
- Window Behind Range (397TH, 399TH)
- Kitchen Barstools w/ Extended Countertops (397TH, 399TH only)
Bedroom
- Residential Style Headboard
- Under Bed Storage Area (N/A 376THS)
- Individually Switched Reading Lights Over Bed
- Bedside 110-Volt Outlets
- 60" X 80" Queen Memory Foam Mattress
- King Bed Upgrade (Optional)
Bathroom
- One-Piece Fiberglass Shower w/Glass Door
- Skylight Above Shower
- Porcelain Toilet
- Medicine Cabinet w/Mirrored Door
Audio & Video
- Rockford Fosgate Speaker Package w/12" Sub and 300W Amp (Optional)
- No-Crank Digital TV Antenna w/Booster
- Satellite/Solar Roof Access Channel
- 32" Class LED TV in Bedroom
- TV Prep in Garage (N/A 376THS)
- Exterior Entertainment Center w/LED TV (Mandatory)
HVAC & Plumbing
- 12v High Power Fan (Kitchen)
- 12v High Power Fan - Master Bath
- 12V Tank Heaters (All Tanks)
- 35k BTU High Capacity Furnace
- Fireplace w/ 5,000 BTU Electric Heater
- Middle/Main A/C
- 2nd A/C - Bedroom (Mandatory)
- Heat Pump A/C -Living Area (Optional)
Garage
- Rear Cargo Loading & Backup LED Lights
- Quick Set Ramp Door Patio System w/ Power Awning (N/A 376THS) (Optional)
- 3-Season Garage Wall (NA w/ Pull Down Garage Screen Wall) (N/A 376THS) (Optional)
- Happi-Jac Electric Bunk System w/Folding Sofas (N/A 376THS) (Optional)
- Patio Steps (N/A 376THS) (Optional)
Utilities
- OneControl™ 7" Touchscreen Control Panel w/App Controls and Redundant Slide Switches
- Generator Prep
- Solar Prep (10 gauge wiring with universal MC4 connectors)
- Solitude Solar System (300w Solar Panel, Controller, 2000w Inverter) (Optional)
Exterior Package - Mandatory
- Satellite TV Prep (All TV Locations)
- Aluminum Quad Entry Steps - Garage Entry (N/A 376THS)
- 7,000 lb. Axles w/Self Adjusting Brakes, Wet Bolts and Bronze Bushings
- 17” Aluminum Wheels (120PSI Rated)
- West Lake® E-Rated Tires w/NitroFill™
- Slam-Latch Baggage Doors
- Frameless Tinted Windows
- Aluminum Quad Entry Steps - Main Entry
- Exterior Security Lights
- Power Patio Awning w/LED Lighting
- Folding Roof Ladder
- White Gel Coat Fiberglass Front Cap
- 12V Battery Disconnect
- All-In-One Exterior Utility Center
- 50 Amp Service
- Converter
- Enclosed Fuel Station w/ Dual Fuel Tank (Single Tank 376THS)
- Full Paint Gel Coat Fiberglass Front Cap (376THS, 397TH, 399TH only)
- Solid Step Quad Entry Step - Main Entry
Garage package - Mandatory
- 32" Class LED TV in Garage (397TH and 399TH only)
- Protective Diamond Plate on Garage Sidewalls
- 2,500 lb. Rated Flush-Mount Tie-Downs
- Ram-Air Garage Vents Both Sides (N/A 376THS)
- Tuff-Ply Gas and Oil Resistant Garage Flooring
- Fast Ramp Rear Ramp Door (N/A 376THS)
- Triple Insulated Garage Floor (N/A 376THS)
Interior Package - Mandatory
- 49" Class LED TV in Living Area
- Stereo Entertainment System w/Bluetooth and App Based Controls in Living Area
- Washer/Dryer Prep
- 12 Gallon Gas/Electric Water Heater
- Roller Shade Window Coverings (Main Living Area and Bedroom)
- Recessed LED Puck Lighting
- Solid Surface Countertops w/ Sink Covers
- Stainless Steel Undermount Kitchen Sink
- Chef Inspired Range & Oven w/ Cover
- Kitchen Pantry w/ LED Light Strip
- Garage Control Panel (N/A 376THS)
Weather-Tek Package - Mandatory
- R-Value Equivalent (R-40 Roof / R-45 Floor / R-11 Sidewalls / R-40 Garage Floor / R-24 Slide room Floor)
- Fully Enclosed and Heated, Underbelly and Storage Area
- Enclosed and Heated Low Point Drains
- Engineered Underbelly Airflow Heat Paths
- Stealth AC System w/ Insulated A/C Ducts
- Attic Vent
- Plumbing Line Insulation Barrier
See us for a complete list of features and available options!
All standard features and specifications are subject to change.
All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.
Due to Covid19 supply chain issues, some features and options shown may be temporarily substituted or removed.
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*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 locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes 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.
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.



