2025 Jayco Seismic 399
New Toy Hauler in Grand Rapids, Michigan, 49548
Jayco Seismic toy hauler 399 highlights:
- Party Deck
- Queen Bed with Rear Convertible Sofas
- Overhead Garage Loft with Storage
- Walk-in Shower
- 60" x 80" Queen Bed
- 4K Smart LED HDTV
Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' 6" garage with queen bed with convertible sofa and a loft for added sleeping space, plus there is overhead storage for your things and a side man door to come and go easily. The main living area includes dual opposing slides with an L-shaped tri-fold sofa along the roadside and your dinette and refrigerator plus pantry in the curbside slide. Head up the steps to your front private bedroom with dual entry bath accessible from the hall and inside the master bedroom. Here you will all enjoy a walk-in shower, toilet, and vanity with sink, plus overhead storage. The bedroom features a third slide out housing a queen bed for added floor space, plus a full front walk-in closet, a dresser, and washer/dryer prep, plus so much more!
One look at the Seismic toy haulers by Jayco, and you'll never go back! Each model features a custom automotive-grade vinyl exterior graphics package, a painted fiberglass front cap with built-in LED lighting, and 102" wide-body structural steel I-beam construction. You'll find the pass-through storage with Slam-Latch baggage doors will make unpacking easier than ever, and the rear ramp door/patio with anti-slip, non-skid flooring will allow you to unload your toys with no trouble at all. These toy haulers feature a three seasons garage wall/doors, a 30 gallon fuel tank with a timer, and exterior marine-grade speakers to keep the party going. The Climate Shield zero degree tested weather protection includes a 35,000 BTU furnace, PEX plumbing, and a fully enclosed and heated underbelly so you can enjoy your adventures year around. And we haven't even touched on the interior luxuries you'll find, like solid hardwood cabinet doors, residential vinyl flooring made in the USA, night shades, and more!
- Bath and a Half
- Front Bedroom
- Two Entry/Exit Doors
2025 Jayco Seismic 399 Features
-
Exterior
Slideout
2025 Jayco Seismic 399 Specifications
MSRP
$128,611
MSRP + Destination
$128,611
Currency
US Dollars
Basic Warranty
24 Months
Structure Warranty
36 Months
Roof Warranty (Years)
20
Length (ft)
45.92
Length (in)
551
Length (ft/ft)
45
Length (ft/in)
11
Length (m)
14
Length (mm)
14000
Width (in)
102
Width (mm)
2590.8
Height (in)
161
Height (mm)
4089.4
Interior Height (in)
98
Interior Height (mm)
2489.2
Dry Weight (lbs)
14560
Dry Weight (kg)
6604.4
Payload Capacity (lbs)
5435
Payload Capacity (kgs)
2465.3
GVWR (lbs)
19995
GVWR (kgs)
9069.7
Hitch Weight (lbs)
3395
Hitch Weight (kgs)
1540
Number Of Fresh Water Holding Tanks
1
Total Fresh Water Tank Capacity (gal)
106
Total Fresh Water Tank Capacity (l)
401.3
Number Of Gray Water Holding Tanks
1
Total Gray Water Tank Capacity (gal)
87
Total Gray Water Tank Capacity (l)
329.3
Number Of Black Water Holding Tanks
1
Total Black Water Tank Capacity (gal)
87
Total Black Water Tank Capacity (l)
329.3
Number Of Propane Tanks
2
Total Propane Tank Capacity (gal)
14.2
Total Propane Tank Capacity (lbs)
60
Body Material
Aluminum
Sidewall Construction
Fiberglass
Number of Doors
2
Sliding Glass Door
No
Number of Slideouts
3
Power Retractable Slideout
Yes
Number of Awnings
3
Awning Length (ft)
42
Awning Length (m)
12.8
Power Retractable Awning
Yes
Screened Room
No
Leveling Jack Type
Front Power / Rear Power
Kitchen / Living Area Flooring Type
Vinyl
Kitchen Table Configuration
Chairs
Kitchen Location
Center
Living Area Location
Center
Layout
Oven / Stove
Number Of Oven Burners
3
Oven Depth (in)
21
Oven Depth (mm)
533.4
Overhead Fan
Yes
Convection
No
Refrigerator Size
Full-Size
Refrigerator Power Mode
Electric
Number Of Sofas
3
Sofa Material
Vinyl
Reclining Sofa
No
Number Of Recliner / Rockers
0
Max Sleeping Count
9
Number Of Bunk Beds
1
Number Of Double Beds
0
Number Of Full Size Beds
0
Number Of Queen Size Beds
1
Number Of King Size Beds
0
Number Of Convertible / Sofa Beds
2
Master Bedroom Flooring Type
Vinyl
Master Bedroom Door Style
Conventional Door
Full Size Master Bedroom Closet
Yes
Master Bedroom Mirror Doors
Yes
Master Bedroom Shades / Curtains
Yes
Master Bedroom Location
Front
Bunkhouse
No
Number Of Bathrooms
1
Bathroom Flooring Type
Vinyl
Bathroom Location
Center
Toilet Type
Porcelain
Toilet Location
Center
Door Type
Plastic / Glass
Shower Location
Center
Bathroom Sink Location
Center
Bathroom Medicine Cabinet Location
Center
Bathroom Mirror Location
Center
Bathroom Vent / Fan System Location
Center
Cargo Area Length (in)
162
Cargo Area Length (mm)
4114.8
Cargo Area Flooring Type
Rubber
Cargo Area Rear Door Style
Ramp Door
Cargo Area Auxiliary Gas Tank Capacity (gal)
30
Cargo Area Auxiliary Gas Tank Capacity (lbs)
113.6
Wheels Composition
Aluminum
Number Of Axles
3
Tire Brand
Uniroyal
Rear Tire Width
215
Rear Tire Aspect Ratio
75
Rear Tire Speed Rating
H
Rear Wheel Diameter
17.5
Rear Tire (Full Spec)
Uniroyal Tires 215/75 R17.5H
Spare Tire Location
Exterior Mounted
Front Brake Type
Not Applicable
Rear Brake Type
Electric Drum
Battery Power Converter
Yes
Air Conditioning Prewiring
Yes
Cable Prewiring
Yes
Phone Prewiring
No
Heat Prewiring
Yes
TV Antenna Prewiring
Yes
Satellite Prewiring
Yes
Washer / Dryer Prewiring
Yes
Solar
Yes
Generator Type
Gas
Air Conditioning Type
Automatic
Air Conditioning (BTUs)
30,000
Heater Type
Automatic
Heater (BTUs)
35,000
Water Heater Tank Capacity (g)
16
Water Heater Tank Capacity (l)
60.6
Water Heater Pump Power Mode
Electrical / Propane
Water Heater Tank Bypass
Yes
Tankless Water Heater
No
Number Of Emergency Exits
1
Number Of Radios
1
Satellite
No
Speaker Location(s)
Interior / Exterior
Number Of Discs
1
Number Of Televisions
1
Primary Color
White
Secondary Color
Black
Metallic
No
Paint Swatch File Name
Jayco/White_-_Black_Exterior_Color.gif
Wallpaper
Yes
Interior Wood Finish
Yes
Exterior Patio / Deck Location
Rear
Bluetooth Audio
Yes
Wi-Fi Capable
Yes
2025 Jayco Seismic 399 Literature
Unit Specs
- Stock #45289
- Year2025
- ManufacturerJayco
- Make Jayco
- ModelSeismic
- Floorplan399
- Floorplan LayoutBath and a Half
Front Bedroom
Two Entry/Exit Doors - Type Toy Hauler
- ConditionNew
- Length45' 0"
- VIN1UJCGSCV1S18M0104
- Price$129,504.00
- Need to know your payment? Use our RV Loan Calculator!
- Exterior ColorWhite
- Sleeps9
- Water Capacity (Fresh)106 gal
- Water Capacity (Black)87 gal
- Water Capacity (Grey)87 gal
- Slideouts3
- Tow/Hitch Weight3395 lbs
Email Seller
Request More Info on this 2025 Jayco Seismic 399 Offered for sale by TerryTown RV Superstore
7145 S. Division Ave.
Grand Rapids, MI 49548
Phone: Call Seller
Toll-Free: Call Seller
Fax: 616-455-1004
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