# Jayco Seismic 399

399 is a toy hauler floor plan by Seismic (Jayco).

## Specs (2025 model year)

| Spec | Value |
| --- | --- |
| Length | 45 ft 11 in |
| Sleeps | 8 |
| Slide-outs | 0 |
| Dry weight | 14,950 lbs |
| GVWR | 20,400 lbs |
| MSRP | $117,368 |

## Model years

2025, 2024. Year-specific specs: `https://rvenvy.com/toy-haulers/jayco/seismic/399?year={year}`

## Floor plan tags

bath and a half, front bedroom

## Inventory

No units currently for sale. Search similar inventory: https://rvenvy.com/inventory

Floor plan diagram: https://images.rvenvy.com/e59aa4f69dec8eb8bbd738817e7b50f9d014f44bb1b2d4a4e2db672e728d31b5/1024.webp

Canonical page: https://rvenvy.com/toy-haulers/jayco/seismic/399