2026 Seismic | NEW 399
2026 Seismic
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Exterior
Titanium full-body Paint
Charcoal full-body paint
Metallic Blue full-body paint
Metallic Copper full-body paint
Metallic Red full-body paint
Top Feature Gallery
Seismic party deck with stairs
Seismic party deck with stairs
Build and Price Your Jayco
Choose your customizations below and receive a price estimate.
Specifications
Weights
| Dry Hitch Weight (lbs) | 3,370 |
| Unloaded Vehicle Weight (lbs) | 14,950 |
| Cargo Carrying Capacity (lbs) | 5,450 |
| Gross Vehicle Weight Rating (lbs) | 20,400 |
Measurements
| Exterior Length (overall) | 45' 11" |
| Exterior Length (pin to bumper) | 44' 5" |
| Exterior Height | 12' 8" |
| Exterior Height (with A/C) | 13' 2" |
| Exterior Height (with 2nd A/C) | 13' 2" |
| Exterior Width | 8' 6" |
| Exterior Width (with slides out) | 13' 6" |
| Interior Height (main) | 8' 3" |
| Interior Height (upper deck) | 6' 4" |
| Awning Length | 21' 0" |
| Awning Length 2 | 11' 0" |
| Garage Length | 13' 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
| Sleeps | up to 8 |
| Water Heater | 16 |
| # of outside storage compartments | 2 |
| Furnace BTU | 35000 |
| Tire Size | 215/75R17.5H |
2025 specs shown
Exteriors
Options
2026 Seismic
Starting at $112,905
The 2026 Jayco Seismic Toy Hauler is built for adventure, offering rugged durability and high-end comfort for all-season camping. With Climate Shield™ zero-degree tested weather protection, a 35,000 BTU furnace, and double-layer fiberglass batt insulation, you’ll stay comfortable in any climate. The fully enclosed and heated underbelly ensures peace of mind even in freezing conditions.
Built on a 102 in. wide structural steel I-beam frame, the Seismic features Stronghold VBL™ aluminum-framed walls, a Magnum Truss™ Roof System, and an Alpha roof membrane with a limited lifetime warranty. Reaching your destination is effortless with the 5-Star Handling Package, which includes Dexter® Axles with ABS and Tow Assist, 17.5 in., 16-ply "H" rated Cooper tires, and the MorRyde CRE 3000 Suspension System for a smooth, controlled ride.
Power is never an issue with the NPS-powered Yamaha 6,000W generator and the Overlander II Solar Package featuring two roof-mounted 200W solar panels, 30AMP Digital PWM Solar Controller, and an 1800W inverter. Inside, residential-style luxury awaits with an Olympic 66” x 80” bed, handcrafted hardwood cabinetry, and a SuperSofa or theater seats with heat, massage, and LED lighting (select models). The kitchen boasts a residential refrigerator, 30-inch space-saver microwave, and a residential 21-inch oven.
The garage is built for versatility, featuring HappiJac® electric-lift queen beds/convertible sofas, a Tuff-ply rubberized floor liner, and three-seasons removable wall/doors. Outdoor living is maximized with a rear ramp patio kit, anti-slip flooring, and a rear electric patio awning. Select models also offer an outside HALO griddle with JayPort® LP quick-connect.
Tech-savvy conveniences include a 4K Smart LED HDTV, touch-screen Bluetooth® stereo, and a Keyed-Alike™ lock system. With a blend of durability, luxury, and cutting-edge technology, the 2026 Jayco Seismic Toy Hauler is ready for your next great adventure.
Standard Features
and Options
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