2 listings from a single dealer. Median price is $99,985.
The 2026 Jayco Seismic 399 is currently available from 1 dealer on Searchshop with 2 active listings. Median price is $99,985. The 2026 Jayco Seismic 399 is nearly new, so most examples will still carry meaningful factory or extended warranty coverage.
Asking prices are tightly clustered, suggesting a stable resale market — there is little room to negotiate based on comparables alone.
Most listings sit in New York, with a cluster around Cicero.
Confirm the original factory warranty is intact and transferable, request the original window sticker, and verify any recall work has been completed at a Jayco dealer.
This page has fewer than 3 listings and is currently set to noindex while inventory builds.
