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2025 Jayco Seismic 399
UsedStock #2694456p
Listing price
2025 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 11 in
Dry weight
14,560 lbs
GVWR
20,400 lbs
Sleeps
8
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.
$74,900 – $81,999
This unit is ranked 3 of 5 by asking price in this group.
The listing price on this unit has changed 9 times.
See the complete price timeline and the rest of this unit's pricing insights.
Camping World
Bossier City, LA
Shop the 2025 Jayco Seismic 399 - Stock #2694456P. It is currently available at Camping World in Bossier City, LA.
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