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2026 Jayco Seismic 399
NewStock #E0260-25
Listing price
2026 Seismic 399
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
What sells people on the Jayco Seismic 399 is the combination of a serious garage and genuine living space, all wrapped into one 46-foot fifth wheel. The bath and a half is the quiet hero here, giving your crew a second toilet so the main bath stays free, and two entry doors keep foot traffic flowing between the garage and the front bedroom. It sleeps eight and carries a hefty payload, so the gear comes along without a fight. If you're shopping used, it's worth giving the plumbing, hydraulics, and finish work a close look before you buy.
Length
45 ft
Dry weight
15,725 lbs
GVWR
20,400 lbs
Sleeps
9
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
$79,995 – $112,995
This unit is ranked 3 of 56 by asking price in this group.
The listing price on this unit has changed 3 times.
See the complete price timeline and the rest of this unit's pricing insights.
Ansley RV
Duncansville, PA
Compared with 29 dealers in Pennsylvania
Customer Value Package, Five Star Handling Package, Half Bath, KING BED
Added 3RD A/C in Cargo
2026 Jayco Seismic Toy Hauler – Luxury Travel Trailer with Modern Features
Discover the exceptional 2026 Jayco Seismic Toy Hauler, a premium recreational vehicle designed for thrill-seekers and outdoor adventurers alike. This new arrival in the towable RV category combines versatile living space, robust performance, and upscale amenities, making it an ideal choice for families or groups up to nine. With a length of approximately 45 feet 11 inches and a width of 8 feet 6 inches, the Seismic provides ample space and comfort for extended travels.
The Seismic is equipped with a spacious interior and advanced features, including:
The Seismic boasts a modern interior featuring a free-standing dinette with chairs, bunk beds, and a queen bed, making it perfect for family adventures. Entertainment is at the forefront with multiple amenities such as a DVD player, CD player, TV, exterior speakers, and an auxillary battery for off-grid power. The RV also includes a microwave, oven, refrigerator, stove top burner, and water heater, allowing for home-like convenience on the road.
Designed with ease and safety in mind, this toy hauler comes with an external shower, ladder, leveling jacks, power roof vent, skylight, roof vents, smoke and CO detectors, LP detector, and a spare tire kit. The exterior is rugged and insulated, ready for various weather conditions, and features an awning for outdoor shade.
Experience the perfect mix of luxury, functionality, and adventure with the 2026 Jayco Seismic Toy Hauler – the ultimate choice for those seeking fun on the road with all the comforts of home. Contact us today to learn more about this outstanding RV and start planning your next outdoor adventure!
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