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- MEGA SALE PRICE: $87,699
- MSRP: $137,265
- Save: $49,566
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Sleeps 9
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3 Slides
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Bath and a HalfTwo Entry/Exit Doors
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46ft Long
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14,560 lbs
399 Floorplan
Specifications
Sleeps | 9 | Slides | 3 |
Length | 45 ft 11 in | Ext Width | 8 ft 6 in |
Ext Height | 13 ft 5 in | Int Height | 8 ft 3 in |
Hitch Weight | 3395 lbs | GVWR | 19995 lbs |
Dry Weight | 14560 lbs | Cargo Capacity | 5435 lbs |
Fresh Water Capacity | 106 gals | Grey Water Capacity | 87 gals |
Black Water Capacity | 87 gals | Tire Size | 215/75R17.5'H' |
Furnace BTU | 35000 btu | Fuel Capacity | 30 gals |
Number Of Bunks | 1 | Available Beds | Queen |
Refrigerator Type | 12 Volt | Refrigerator Size | 17 cu ft |
Cooktop Burners | 3 | Number of Awnings | 3 |
Garage Size | 11 ft | LP Tank Capacity | 30 lbs |
Water Heater Capacity | 16 gal | Water Heater Type | Gas/Electric DSI |
AC BTU | 30000 btu | TV Info | LR 4K Smart LED HDTV |
Awning Info | 21' Electric w/LED Lights, 11' Electric, 10' Rear | Axle Count | 2 |
Washer/Dryer Available | Yes | Number of LP Tanks | 2 |
Shower Type | Walk-In Shower | Electrical Service | 50 amp |
VIN | 1UJCGSCV3S18M0248 |
Description
New 2025 Jayco Seismic 399 – The Ultimate Luxury Toy Hauler
Designed for thrill-seekers and outdoor enthusiasts, the 2025 Jayco Seismic 399 delivers the perfect mix of rugged adventure and high-end comfort. With a spacious 13’ 6” garage, party deck, multiple sleeping options, and premium entertainment features, this toy hauler fifth wheel is ready for the trails, dunes, or wherever adventure takes you.
Key Features & Highlights:
- Rear Party Deck – Transforms the ramp door into an outdoor entertainment space
- 13' 6" Garage with Queen Bed & Convertible Sofas – Dedicated space for toys and guests
- Overhead Loft with Storage – Perfect for extra sleeping space or gear storage
- Walk-In Shower – Spacious residential-style shower for ultimate comfort
- 60” x 80” Queen Bed in Master Suite – Spacious and private, with slide-out for extra room
- Full Front Walk-In Closet – Plenty of storage with washer/dryer prep
- 4K Smart LED HDTV – Premium entertainment experience for movie nights
Luxury Living & Kitchen Amenities:
- Dual Opposing Slides in Living Area – Expands interior space for ultimate relaxation
- L-Shaped Tri-Fold Sofa – Spacious seating that converts for extra sleeping space
- Large Dinette & 17 Cu. Ft. 12V Refrigerator – Perfect for family meals and extended trips
- Pantry Storage – Keeps dry goods and snacks organized
Built for Durability & Performance:
- 102” Wide-Body Structural Steel I-Beam Construction – Maximizes space and strength
- Rear Ramp Door/Patio with Non-Skid Flooring – Safe and easy access to your garage
- Pass-Through Storage with Slam-Latch Baggage Doors – Extra space for gear and essentials
- 30-Gallon Fuel Tank with Timer – Keeps your ATVs, motorcycles, or UTVs fueled up
All-Season Comfort & Outdoor Features:
- Climate Shield Zero-Degree Weather Protection
- 35,000 BTU Furnace – Stay warm in cold climates
- Fully Enclosed & Heated Underbelly – Designed for year-round camping
- PEX Plumbing System – Prevents freezing and damage
- Three Seasons Garage Wall/Doors – Helps maintain a comfortable interior temperature
- Exterior Marine-Grade Speakers – Keep the party going outdoors
Why Buy from Little Dealer Little Prices?
- Best Prices & No Hidden Fees – Transparent pricing with no surprises
- Huge Inventory & Financing Options – Get the perfect RV at a price that fits your budget
- Expert Service & Support – Factory-trained technicians ensure your RV is road-ready
- Adventure-Ready Guarantee – Every RV is inspected and prepped before leaving the lot
For the ultimate combination of adventure, luxury, and comfort, the 2025 Jayco Seismic 399 is the toy hauler built to take you further. Call or visit Little Dealer Little Prices today!
Stock 360 Tours and Stock Images May Be Shown. Colors and Specs May Vary. Call for Details.
- Party Deck
- Queen Bed with Convertible Sofas
- Overhead Garage Loft with Storage
- Walk-in Shower
- 60" x 80" Queen Bed
- 4K Smart LED HDTV
Features
Standard Features (2025)
Standard Exterior Equipment
- 102 in. wide body structural steel I-beam construction
- NPS – Powered by Yamaha 6,000 watt generator, gas/C.A.R.B certified
- 6-point hydraulic auto-leveling system
- Battery disconnect switch
- Climate Shield™ zero-degree tested weather protection:
- PEX plumbing
- 35,000 BTU output furnace
- Double layer fiberglass batt insulation in ceiling and floor
- Double sided radiant barrier insulation (roof and floor)
- Fully enclosed and heated underbelly (ducted)
- Custom automotive-grade vinyl exterior graphics package
- Detachable shore power cord
- Digital TV antenna
- Dual 30 lb. propane bottles with auto regulator
- Exterior marine-grade speakers
- Folding roof ladder
- Fully enclosed, LED-lighted universal docking center:
- Black tank flush, winterization and sanitation
- Quick-connect outside shower
- Satellite prep
- HELIX Cooling System™ (industry exclusive):
- Directional and closeable A/C vents
- Jayco-exclusive insulated dual duct design
- Two exterior-mounted 15,000 BTU ducted A/Cs (living room and bedroom)
- JaySMART™ (Safety Markers And Reverse Travel) LED lighting (patented)
- LED exterior lighting package
- LP quick-connect
- Magnum Truss™ Roof System (strongest tested roof in the industry) with Alpha roof membrane system with limited lifetime warranty
- Painted fiberglass front cap with clear coat and built-in specialty LED lighting
- Pass-through storage with Slam-latch™ baggage doors
- Stronghold VBL™ aluminum framed and vacuum bond laminated gelcoated fiberglass exterior walls and slide room end walls
- Under-mounted spare tire
- Water heater bypass
Interior Equipment
- 12V charging station
- 5/8 in. tongue-and-groove joined plywood main floor decking and 3/8 in. tongue-and-groove plywood in the roof
- Bathroom skylight
- Carbon monoxide and LP detector
- Central command center with built-in tank monitoring
- Custom interior design - Vintage Farmhouse
- Gas-strutted under-bed storage
- Handcrafted and glazed doors, drawers and trim
- Hardwood safety handrail on steps
- Heavy-duty, 75 lb., full-extension, steel ball-bearing drawer guides
- Inverter pre-wire
- LED fireplace with electric space heater (select models)
- LED interior lighting throughout
- No in floor heat registers throughout the coach
- Porcelain foot flush toilet
- Residential "Do it all" sink with pull-out kitchen faucet, glass rinse and vegetable rinse
- Residential finished dove tail jointed drawers throughout
- Residential quilted bedspread
- Residential vinyl flooring (made in the USA)
- Solid hardwood cabinet doors
- Stain protected fabric on all furniture
- SuperSofa with heat, massage and LED lighting (select models)
- Vinyl flooring in slideouts (no carpet)
- Washer/dryer prep
Customer Value Package (Mandatory)
- 16 gal. gas/electric DSI water heater
- 17 cu. ft. 12V refrigerator
- 2nd electric awning
- 30" space saver microwave
- 4K Smart LED HDTV with fully digital HDMI® output
- 50-amp service and 3rd A/C prep
- AM/FM/CD/DVD/Bluetooth® stereo with 4 speakers
- Bathroom power vent
- Custom machined aluminum rims
- Electric awning with RGB LED lights and remote control
- Hidden hinges on cabinet doors
- Keyed-Alike™ lock system
- MORryde® strut-assisted fold-away entrance steps (main entrance)
- Night shades
- Residential 21" oven with three burners
- Residential king (72 in. x 80 in.) mattress with under bed storage
- Rooftop and ground solar prep
4 Star Handling Package (Mandatory)
- 5 in. 16 ply 'H' rated Uniroyal tires
- Dexter® Axles with ABS and Tow Assist - includes Nev-R-Adjust® brakes and E-Z Lube® hubs
- Rota-flex king pin
- Wet bolt fasteners, bronze bushings and 4,000 lb. leaf springs
Ramp and Cargo Equipment
- 30 gal. fuel tank with timer
- Garage D-rings mounted to steel frame
- HappiJac® electric-lift queen beds/convertible sofas with folding armrests and cup holders
- LED high-intensity ramp lights
- Ram air vents and power roof vent
- Ramp patio kit with exterior steps
- Rear electric patio awning
- Rear ramp door and patio with anti-slip, non-skid flooring
- Three seasons removable garage wall/doors
- Tuff-ply, rubberized garage floor liner
Options
- Frameless dual-pane tinted safety-glass windows
- Outside Halo griddle for outside kitchens or JayPort system (includes LP quick-connect) (select models)
- Overlander 2 Solar Package: 30-amp solar controller with (2) roof-mounted 200W solar panels and a 1800W inverter
- Overlander 4 Solar Package: (4) 200W solar panels, (2) 100-amp/hour lithium heated batteries, 60-amp controller, 3000W inverter, DC/DC power converter, soft start power save main 15K A/C, soft start power save for bedroom 15K A/C, battery monitor, energy management system, roof pre-wire for additional solar panels, generator prep capable and heavy gauge steel battery enclosure
- Queen residential foam-top mattress
Please 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 the current environment, our features and options are subject to change due to material availability.
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1575 Lance
Friendly and helpful staff. The ball I had was the wrong size but the guys worked over their lunch hour to fit the correct one. -
First time buyers, but we'll definitely be repeat customers
Little Dealer had just what we were looking for and at a reasonable price. The sales associate, Jan Favorite, was amazing to work with. She was patient, knowledgeable, and helped guide us toward the best travel trailer for our family. Brandon from the service department helped us find the accessories -
Knowledgeable and accommodating
We’d been looking for a certain floor plan in a used camper and once we found one we were able to jump on it thanks to Carole. Dreu was very helpful explaining everything and making sure that everything was good-to-go. Definitely worth a visit!
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Please contact us @ 928-350-2400 for availability as our inventory changes rapidly. Little Dealer Little Prices strives for accurate website information but is not responsible for misprints, typos, or errors on our website. Manufacturer or sample photos and specifications may be used in place of actual unit photos and specs. Monthly payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available. Prices exclude taxes, PDI, documentation and delivery fees, destination charges and fees. This offer expires when this information changes or the stock number is sold.
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