2025 Seismic | 359

2025 Seismic

See Floorplan with
an Option Added:

359 Queen Bed

See Floorplan with an Option Added:

Build and Price Your Jayco

Choose your customizations below and receive a price estimate.

Specifications

Weights
Dry Hitch Weight (lbs)2,990
Unloaded Vehicle Weight (lbs)13,405
Cargo Carrying Capacity (lbs)4,095
Gross Vehicle Weight Rating (lbs)17,500
Measurements
Exterior Length (overall)41' 9"
Exterior Length (pin to bumper)40' 2"
Exterior Height12' 9"
Exterior Height (with A/C)13' 3"
Exterior Height (with 2nd A/C)13' 3"
Exterior Width8' 6"
Exterior Width (with slides out)11' 6"
Interior Height (main)8' 3"
Interior Height (upper deck)6' 5"
Awning Length17' 0"
Awning Length 211' 0"
Garage Length11' 0"
Tank Capacities
Fresh Water Capacity (gals)106.0
Gray Water Capacity (gals)87.0
Black Tank Capacity (gals)87.0
Propane Unit (lbs)60
Fuel Tank Capacity (gals)27
Miscellaneous
Sleepsup to 6
Water Heater16
# of outside storage compartments2
Furnace BTU 35000
Tire Size215/75R17.5'H'

2 Axles

Options
Vintage Farmhouse $0
Customer Value Package (Mandatory) $7,500
4 Star Handling Package (Mandatory) $3,743
Overlander 2 Solar Package $1,943
Overlander 4 Solar Package $14,093
Frameless dual-pane tinted safety-glass windows $1,793
Outside Halo griddle for outside kitchens or JayPort system (includes LP quick-connect) (select models) $443
Queen residential foam-top mattress $30
15,000 BTU drop-in cargo area A/C $893

$104,655 MSRP*

*MSRP shown in USD. Doesn’t include freight and dealer prep charges

Build and Price »
Seismic

2025 Seismic

Starting at $104,655

The Jayco Seismic Toy Hauler is ready to take you and your toys wherever the roads lead. Designed for all-weather camping, the Seismic has undergone zero-degree testing in the Dometic freeze chamber, proving you can camp safely and comfortably all year round, even in snowy conditions. Taking it one step further, the Seismic also undergoes weather chamber testing from zero to 100⁰ F. With Climate Shield™ zero-degree tested weather protection, the Seismic has a fully enclosed and heated underbelly, double-layered fiberglass batt insulation, and double-sided, bubble-foil radiant barrier insulation for best-in-class results. 

Reaching your destination is just as effortless as handling the weather, thanks to the industry-exclusive 4-Star handling package. This innovative package includes a Rota-Flex™ King Pin Box, Dexter® Axles with ABS and sway mitigation, Dexter® Heavy-Duty Shackles with Wet Bolt Fasteners and Bronze Bushings and 17.5” Uniroyal H-rated 16 ply tires. In fact, all of our luxury fifth wheels are built using 7,000-lb. or 8,000-lb. Dexter axles with Nev-R-Adjust® brakes that eliminate the need for time-consuming manual adjustments and greatly improve stopping distances. The Dexter® Heavy-Duty Shackles with Wet Bolt Fasteners and Bronze Bushings help resist the wear and ear of towing, while the Uniroyal tires provide a safer ride, far fewer repairs and much less sway. This means fewer blown tires, less frequent tire replacements, and a longer, happier camping experience. Upon arrival at your adventure destination, the all-new 6,000W generator by NPS powered by Yamaha will guarantee durable, reliable power.

Inside the Seismic Toy Hauler, you’ll experience residential-style living with features like tongue and groove plywood flooring that’s durable and easy to clean, a 30” space saver microwave and a 21” residential-size oven. The smaller microwave allows for more space in the kitchen for storage and highlights the residential sink with built-in glass cleaner and vegetable rinse. In the living area, you’ll enjoy the residential stain guard-protected fabric instead of pleather or vinyl that peels or cracks. 

New for 2025, the Seismic features residential dovetail-jointed drawers for superior strength. These stronger drawers hold more and are more durable so you can enjoy longer camping seasons with fewer repairs. Yet, despite its incredibly durable and rugged build, the Seismic also boasts Jayco’s high-end, custom interior design. Hand-crafted by a team of experts, every fabric, fixture and feature is selected to provide the top-notch livability that Jayco is known for. Because of the attention given to interior design, Jayco is proud to offer higher bunk ratings, thicker bunk mats, slides without carpet—and two interior design options (select products). 

With the Seismic Toy Hauler, you have everything you need for your next greatest adventure.

Standard Features
and Options

Overlander Packages
4 Star Handling Package
Climate Shield
JaySMART™
Strong foundations
The Magnum Truss™ Roof System

Overlander Packages

Solar Capabilities

Solar power offers RVers newfound freedom when it comes to their camping experiences by allowing users to break away from shore power constraints. Jayco RV now offers varying levels of optional solar packages on travel trailers, fifth wheels and toy haulers. Your next RV can come equipped with solar prep or optional solar packages. 

Learn More »

4 Star Handling Package

The 4 Star Handling package is a Jayco exclusive blend of four high-end components selected and installed to provide the most confident travel trailer towing experience.

 

Learn more »

Climate Shield

Extend your camping season with built-in protection against extreme heat and cold—even in temperatures as high as 100 degrees or as low as zero degrees (Fahrenheit).

Learn more »

JaySMART™

The exclusive safety system adds several tow vehicle-controlled exterior lights to indicate turning, braking, reverse travel and hazard situations—because a split second can make all the difference.

Learn more »

Strong foundations

While other manufacturers often weld or modify stock frames, every Jayco RV is built on a custom frame, designed and sized specifically to best support each unit on and off the road for years to come.

Learn more »

The Magnum Truss™ Roof System

In testing, the creatively engineered system withstood 4,500 pounds—50 percent more than competitors’ roofs.  Walk confidently on top of your unit and feel safer in wind or snowstorms.  

Learn more »

Your Saved Floorplans

Click the star on a floorplan page to save and compare.