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Georgia’s Highest Rated, Most Awarded & Most Trusted RV Dealer!
770.477.0552
800.633.9940
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McDonough, GA
324 Industrial Blvd
McDonough, GA 30253
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Cumming, GA
5410 Chattahoochee Ind Park
Cumming, GA 30041
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New 2026 Jayco Seismic 399

Toy Hauler Fifth Wheel
Stock # JS3990149
McDonough, GA
Virtual Tour 13ft Garage Toy Hauler
"Get ready to experience next-level luxury and power — the all-new 2026 Jayco Seismic 399 is on its way, and with Jayco’s legendary build quality and cutting-edge features, this toy hauler is redefining adventure before it even hits our lot.
  • Sale Price: $102,479
  • MSRP: $141,197
  • Save: $38,718
Payments From: $742 /mo.
  • 46ft long
  • 14,950 lbs
  • Sleeps 9
  • 3 slides
  • Bath and a Half
    Two Entry/Exit Doors
What Other Customers Are Saying

  • Mark Harper was very knowledgeable and I trust what he said.

    I've not purchased yet, but when I do, I will call on Mark Harper. He was extremely patient with me when he knew I wasn't ready to purchase just yet. He's very knowledgeable and I trust what he said. He also didn't try to over sell me.
    Mark

  • Mark Harper was top notch and very professional.

    Our Salesman Mark Harper was top notch and very professional. We will definitely use him on our next purchase.
    Anonymous

  • Mark Harper is the most knowledgeable sales person

    Mark Harper is the most knowledgeable sales person we've ever had the pleasure of doing business with. Ten stars!!
    Anonymous
We are here to help!

At Southern RV,  we’re committed to giving you a clear, upfront understanding of your out-the-door cost.  The listed Sale Price includes all of our cash discounts and may also includes a Finance Concession for using one of the approved lenders through our Finance Department.  In addition to the above price, we have a Documentation Fee of $897 for all RV types, as well as a Dealer Prep Fee of $498 for travel trailers, $698 for fifth wheels, or $798 for motorhomes.  New motorhomes are subject to a $3 Lemon Law Fee per the State of Georgia.  Taxes are collected based on the location of registration.  That's it!  No additional freight charges to our dealership, no customer orientation charge, and none of those "ready-to-camp" add-ons like you’ll often find at chain stores!

Southern RV is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual units on our lot. Please contact us @770-477-0552 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.

Manufacturer and/or stock photographs may be used and may not be representative of the particular unit being viewed. Where an image has a stock image indicator, please confirm specific unit details with your dealer representative.