2027 Seismic Fifth Wheel Toy Hauler | 399

2027 Seismic Fifth Wheel Toy Hauler

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399 Half-bath with retractable walls Queen Bed

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Interior Design

Interior Design - Dune Gray

Interior Design - Dune Gray

Exterior

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Specifications

Weights
Dry Hitch Weight (lbs)3,310
Unloaded Vehicle Weight (lbs)14,950
Cargo Carrying Capacity (lbs)5,450
Gross Vehicle Weight Rating (lbs)20,400
Measurements
Exterior Length (overall)46' 9"
Exterior Length (box length)44' 5"
Exterior Height12' 8"
Exterior Height (with A/C)13' 2"
Exterior Height (with 2nd A/C)13' 2"
Exterior Width8' 6"
Exterior Width (with slides out)13' 6"
Interior Height (main)8' 3"
Interior Height (upper deck)6' 4"
Awning Length21' 0"
Awning Length 211' 0"
Garage Length13' 6"
Tank Capacities
Fresh Water Capacity (gals)106.0
Gray Water Capacity (gals)87.0
Black Tank Capacity (gals)87.0
Propane Unit (lbs)60
Miscellaneous
Sleepsup to 8
Water Heater16
# of outside storage compartments2
Furnace BTU 35000
Tire Size215/75R17.5H

2026 specs shown

Exteriors
Titanium full-body paint $17,393
Charcoal full-body paint $17,393
Metallic Blue full-body paint $17,393
Metallic Copper full-body paint $17,393
Metallic Red full-body paint $17,393
Interior Designs
Interior Design - Dune Gray $0
Options
Customer Value Package $0
5-Star Handling Package $0
Ramp & Cargo Equipment $0
Dual Pane Frameless Tinted Safety Glass Windows $0
Heated Tank Pads $0
Outside Halo® Griddle for JayPort System $0
Queen Residential Foam Top Mattress $0
Retractable Half Bath Wall in Garage $0

$131,993 MSRP*

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

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Seismic Fifth Wheel Toy Hauler

2027 Seismic Fifth Wheel Toy Hauler

Starting at $119,280

The 2027 Jayco Seismic Toy Hauler is engineered for serious adventure, combining rugged construction with elevated residential comfort inside and out. Built on a 102-inch wide structural steel I-beam frame, Seismic delivers strength where it matters most, featuring Jayco’s Stronghold VBL™ aluminum-framed, vacuum-bond laminated walls and the Magnum Truss™ XL6™ Roof System—one of the strongest tested roof structures in the industry—topped with a PVC roof membrane backed by a limited lifetime warranty.

Designed for true four-season use, the Climate Shield™ zero-degree tested weather protection system surrounds you with confidence. Double-layer fiberglass batt insulation, radiant barrier technology in the roof and floor, a fully enclosed and heated underbelly, and a powerful 35,000 BTU furnace all work together to keep you comfortable no matter the forecast. The HELIX Cooling System™ enhances climate control with an insulated dual-duct A/C design and directional, closeable vents for more efficient airflow throughout the coach.

On the road, the 5-Star Handling Package ensures a smooth, controlled towing experience. Dexter® axles with ABS, Tow Assist, and Sway Mitigation pair with 17.5-inch H-rated Cooper tires, MORryde® CRE 3000 suspension, and a Rota-Flex king pin to deliver stability and confidence mile after mile.

Off-grid capability comes standard with the NPS-powered Yamaha 6,000W generator and the Power Up Solar II system, featuring 400 watts of solar, an MPPT controller, and an 1800W inverter—giving you the freedom to camp longer and farther. Exterior convenience is elevated with the Nautilus docking station, dual black tank flush, quick-connect outside shower, LP quick-connect, Starlink prep, and pass-through storage with Slam-latch™ baggage doors. A painted fiberglass front cap with integrated RGB lighting and dual power awnings with app-controlled LED lighting bring a bold, modern presence to every campsite.

Inside, Seismic delivers a true residential experience. Premium touches include solid hardwood glazed cabinetry, dovetail-constructed drawers with full-extension guides, and durable vinyl flooring throughout—including slide rooms with no carpet. The living space offers a SuperSofa or theater seating with heat, massage, and LED lighting (select models), paired with a 4K Smart LED HDTV and MB Quart Bluetooth® audio system.

The kitchen is built to perform, featuring a 12V black glass 17 cu. ft. refrigerator, 30-inch residential microwave, and 21-inch oven with three burners, along with a versatile “do-it-all” sink complete with pull-out faucet, glass rinse, and vegetable rinse. In the bedroom, select models offer a king bed, CPAP prep on both sides, and under-bed storage, while the bathroom includes a glass shower door, skylight, porcelain foot-flush toilet, and power vent.

Jayco’s exclusive NuvoH2O whole-coach water treatment system comes standard, delivering softened, filtered water throughout the unit—part of the brand’s commitment to premium livability.

In the garage, versatility meets durability. A Tuff-Ply rubberized floor, 5,000 lb. rated D-rings anchored to the steel frame, and a 30-gallon fuel station make it easy to bring your toys along. The HappiJac® electric-lift queen beds with convertible sofas maximize space, while the three-season garage wall and ramp patio system with power awning and LED lighting transform the area into a functional living and entertainment zone.

From its advanced construction and towing confidence to its refined interior and flexible cargo space, the 2027 Jayco Seismic Toy Hauler is built to take you farther—without sacrificing the comfort of home.

Standard Features
and Options

NuvoH20 Whole House Water Filtration System
Overlander Packages
5 Star Handling Package
Climate Shield
The Magnum Truss™ Roof System

Factory-installed or available on select models, the Jayco TPMS system helps deliver real-time tire pressure and temperature monitoring for added peace of mind on the road. On equipped units, it integrates seamlessly through theTPMS app (model year 2026 and newer), providing instant alerts so you can stay ahead of potential tire issues before they become problems.

In addition to factory-installed applications, TPMS capability may also be available as prep or included equipment on select premium models such as Pinnacle. Whether factory-installed or model-dependent, the system is designed to help reduce the risk of blowouts, improve towing awareness, and enhance overall confidence every time you travel.

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NuvoH20 Whole House Water Filtration System

Enjoy cleaner, better-tasting water throughout your RV with the NuvoH2O Water Filtration System, available on select Jayco models. This salt-free system helps reduce sediment, chlorine, and mineral scale buildup to protect plumbing and appliances while improving overall water quality on the road.

Designed for convenience and low maintenance, NuvoH2O helps extend the life of your RV systems while delivering fresher water for drinking, cooking, and everyday use—wherever your travels take you.

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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. 

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5 Star Handling Package

The 5 Star Handling package is a Jayco exclusive blend of several high-end components selected and installed to deliver a more safe and stable luxury towing experience.

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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).

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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.  

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