Jayco Seismic toy hauler 399 highlights:

• Party Deck
• Queen Bed with Rear Convertible Sofas
• Overhead Garage Loft with Storage
• Walk-in Shower
• 60" x 80" Queen Bed
• 4K Smart LED HDTV

Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' 6" garage with queen bed with convertible sofa and a loft for added sleeping space, plus there is overhead storage for your things and a side man door to come and go easily. The main living area includes dual opposing slides with an L-shaped tri-fold sofa along the roadside and your dinette and refrigerator plus pantry in the curbside slide.  Head up the steps to your front private bedroom with dual entry bath accessible from the hall and inside the master bedroom.  Here you will all enjoy a walk-in shower, toilet, and vanity with sink, plus overhead storage.  The bedroom features a third slide out housing a queen bed for added floor space, plus a full front walk-in closet, a dresser, and washer/dryer prep, plus so much more! 

One look at the Seismic toy haulers by Jayco, and you'll never go back! Each model features a custom automotive-grade vinyl exterior graphics package, a painted fiberglass front cap with built-in LED lighting, and 102" wide-body structural steel I-beam construction. You'll find the pass-through storage with Slam-Latch baggage doors will make unpacking easier than ever, and the rear ramp door/patio with anti-slip, non-skid flooring will allow you to unload your toys with no trouble at all. These toy haulers feature a three seasons garage wall/doors, a 30 gallon fuel tank with a timer, and exterior marine-grade speakers to keep the party going. The Climate Shield zero degree tested weather protection includes a 35,000 BTU furnace, PEX plumbing, and a fully enclosed and heated underbelly so you can enjoy your adventures year around. And we haven't even touched on the interior luxuries you'll find, like solid hardwood cabinet doors, residential vinyl flooring made in the USA, night shades, and more!

Jayco Seismic toy hauler 399 highlights:

• Party Deck
• Queen Bed with Rear Convertible Sofas
• Overhead Garage Loft with Storage
• Walk-in Shower
• 60" x 80" Queen Bed
• 4K Smart LED HDTV

Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' 6" garage with queen bed with convertible sofa and a loft for added sleeping space, plus there is overhead storage for your things and a side man door to come and go easily. The main living area includes dual opposing slides with an L-shaped tri-fold sofa along the roadside and your dinette and refrigerator plus pantry in the curbside slide.  Head up the steps to your front private bedroom with dual entry bath accessible from the hall and inside the master bedroom.  Here you will all enjoy a walk-in shower, toilet, and vanity with sink, plus overhead storage.  The bedroom features a third slide out housing a queen bed for added floor space, plus a full front walk-in closet, a dresser, and washer/dryer prep, plus so much more! 

One look at the Seismic toy haulers by Jayco, and you'll never go back! Each model features a custom automotive-grade vinyl exterior graphics package, a painted fiberglass front cap with built-in LED lighting, and 102" wide-body structural steel I-beam construction. You'll find the pass-through storage with Slam-Latch baggage doors will make unpacking easier than ever, and the rear ramp door/patio with anti-slip, non-skid flooring will allow you to unload your toys with no trouble at all. These toy haulers feature a three seasons garage wall/doors, a 30 gallon fuel tank with a timer, and exterior marine-grade speakers to keep the party going. The Climate Shield zero degree tested weather protection includes a 35,000 BTU furnace, PEX plumbing, and a fully enclosed and heated underbelly so you can enjoy your adventures year around. And we haven't even touched on the interior luxuries you'll find, like solid hardwood cabinet doors, residential vinyl flooring made in the USA, night shades, and more!

Jayco Seismic toy hauler 399 highlights:

• Party Deck
• Queen Bed with Rear Convertible Sofas
• Overhead Garage Loft with Storage
• Walk-in Shower
• 60" x 80" Queen Bed
• 4K Smart LED HDTV

Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' 6" garage with queen bed with convertible sofa and a loft for added sleeping space, plus there is overhead storage for your things and a side man door to come and go easily. The main living area includes dual opposing slides with an L-shaped tri-fold sofa along the roadside and your dinette and refrigerator plus pantry in the curbside slide.  Head up the steps to your front private bedroom with dual entry bath accessible from the hall and inside the master bedroom.  Here you will all enjoy a walk-in shower, toilet, and vanity with sink, plus overhead storage.  The bedroom features a third slide out housing a queen bed for added floor space, plus a full front walk-in closet, a dresser, and washer/dryer prep, plus so much more! 

One look at the Seismic toy haulers by Jayco, and you'll never go back! Each model features a custom automotive-grade vinyl exterior graphics package, a painted fiberglass front cap with built-in LED lighting, and 102" wide-body structural steel I-beam construction. You'll find the pass-through storage with Slam-Latch baggage doors will make unpacking easier than ever, and the rear ramp door/patio with anti-slip, non-skid flooring will allow you to unload your toys with no trouble at all. These toy haulers feature a three seasons garage wall/doors, a 30 gallon fuel tank with a timer, and exterior marine-grade speakers to keep the party going. The Climate Shield zero degree tested weather protection includes a 35,000 BTU furnace, PEX plumbing, and a fully enclosed and heated underbelly so you can enjoy your adventures year around. And we haven't even touched on the interior luxuries you'll find, like solid hardwood cabinet doors, residential vinyl flooring made in the USA, night shades, and more!

Jayco Seismic toy hauler 399 highlights:

• Party Deck
• Queen Bed with Convertible Sofas
• Overhead Garage Loft with Storage
• Walk-in Shower
• 60" x 80" Queen Bed
• 4K Smart LED HDTV

Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' 6" garage with queen bed with convertible sofa and a loft for added sleeping space, plus there is overhead storage for your things and a side man door to come and go easily. The main living area includes dual opposing slides with an L-shaped tri-fold sofa along the roadside and your dinette and refrigerator plus pantry in the curbside slide. Head up the steps to your front private bedroom with the dual entry bath accessible from the hall and inside the master bedroom. Here you will all enjoy a walk-in shower, toilet, and vanity with a sink, plus overhead storage. The bedroom features a third slide out housing a queen bed for added floor space, plus a full front walk-in closet and a dresser!

One look at the Seismic toy haulers by Jayco, and you'll never go back! Each model features a custom automotive-grade vinyl exterior graphics package, a painted fiberglass front cap with built-in LED lighting, and 102" wide-body structural steel I-beam construction. You'll find the pass-through storage with Slam-Latch baggage doors will make unpacking easier than ever, and the rear ramp door/patio with anti-slip, non-skid flooring will allow you to unload your toys with no trouble at all. These toy haulers feature a three seasons garage wall/doors, a 30 gallon fuel tank with a timer, and exterior marine-grade speakers to keep the party going. The Climate Shield zero degree tested weather protection includes a 35,000 BTU furnace, PEX plumbing, and a fully enclosed and heated underbelly so you can enjoy your adventures year around. And we haven't even touched on the interior luxuries you'll find, like solid hardwood cabinet doors, residential vinyl flooring made in the USA, night shades, and more!

Jayco Seismic toy hauler 399 highlights:

• Party Deck
• Queen Bed with Convertible Sofas
• Overhead Garage Loft with Storage
• Walk-in Shower
• 60" x 80" Queen Bed
• 4K Smart LED HDTV

Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' 6" garage with queen bed with convertible sofa and a loft for added sleeping space, plus there is overhead storage for your things and a side man door to come and go easily. The main living area includes dual opposing slides with an L-shaped tri-fold sofa along the roadside and your dinette and refrigerator plus pantry in the curbside slide. Head up the steps to your front private bedroom with the dual entry bath accessible from the hall and inside the master bedroom. Here you will all enjoy a walk-in shower, toilet, and vanity with a sink, plus overhead storage. The bedroom features a third slide out housing a queen bed for added floor space, plus a full front walk-in closet, a dresser, and washer/dryer prep!

One look at the Seismic toy haulers by Jayco, and you'll never go back! Each model features a custom automotive-grade vinyl exterior graphics package, a painted fiberglass front cap with built-in LED lighting, and 102" wide-body structural steel I-beam construction. You'll find the pass-through storage with Slam-Latch baggage doors will make unpacking easier than ever, and the rear ramp door/patio with anti-slip, non-skid flooring will allow you to unload your toys with no trouble at all. These toy haulers feature a three seasons garage wall/doors, a 30 gallon fuel tank with a timer, and exterior marine-grade speakers to keep the party going. The Climate Shield zero degree tested weather protection includes a 35,000 BTU furnace, PEX plumbing, and a fully enclosed and heated underbelly so you can enjoy your adventures year around. And we haven't even touched on the interior luxuries you'll find, like solid hardwood cabinet doors, residential vinyl flooring made in the USA, night shades, and more!

*All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn Company locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes freight, sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly. 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.

Call, Click, Text or Visit Us Today at Little Dealer Little Prices RV a Campers Inn RV Company and Find Your Away!

Stock 360 Tour & Stock Images may be shown. Colors & Specs may vary.

Jayco Seismic toy hauler 399 highlights:

• Party Deck
• Queen Bed with Convertible Sofas
• Overhead Garage Loft with Storage
• Walk-in Shower
• 60" x 80" Queen Bed
• 4K Smart LED HDTV

Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' 6" garage with queen bed with convertible sofa and a loft for added sleeping space, plus there is overhead storage for your things and a side man door to come and go easily. The main living area includes dual opposing slides with an L-shaped tri-fold sofa along the roadside and your dinette and refrigerator plus pantry in the curbside slide. Head up the steps to your front private bedroom with the dual entry bath accessible from the hall and inside the master bedroom. Here you will all enjoy a walk-in shower, toilet, and vanity with a sink, plus overhead storage. The bedroom features a third slide out housing a queen bed for added floor space, plus a full front walk-in closet, a dresser, and washer/dryer prep!

One look at the Seismic toy haulers by Jayco, and you'll never go back! Each model features a custom automotive-grade vinyl exterior graphics package, a painted fiberglass front cap with built-in LED lighting, and 102" wide-body structural steel I-beam construction. You'll find the pass-through storage with Slam-Latch baggage doors will make unpacking easier than ever, and the rear ramp door/patio with anti-slip, non-skid flooring will allow you to unload your toys with no trouble at all. These toy haulers feature a three seasons garage wall/doors, a 30 gallon fuel tank with a timer, and exterior marine-grade speakers to keep the party going. The Climate Shield zero degree tested weather protection includes a 35,000 BTU furnace, PEX plumbing, and a fully enclosed and heated underbelly so you can enjoy your adventures year around. And we haven't even touched on the interior luxuries you'll find, like solid hardwood cabinet doors, residential vinyl flooring made in the USA, night shades, and more!

*All calculated monthly payments are an estimate for qualified buyers only and do not constitute a commitment that financing or a specific interest rate or term is available. Financing terms may not be available in all Campers Inn Company locations. Campers Inn RV Sales is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes freight, sales tax, registration tags, and delivery fees. Manufacturer pictures, specifications, and features may be used in place of actual inventory in stock on our lot. Please contact us for availability as our inventory changes rapidly. 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.

Call, Click, Text or Visit Us Today at Little Dealer Little Prices RV a Campers Inn RV Company and Find Your Away!

Stock 360 Tour & Stock Images may be shown. Colors & Specs may vary.

New 2025 Jayco Seismic 399 – The Ultimate Luxury Toy Hauler

Designed for thrill-seekers and outdoor enthusiasts, the 2025 Jayco Seismic 399 delivers the perfect mix of rugged adventure and high-end comfort. With a spacious 13’ 6” garage, party deck, multiple sleeping options, and premium entertainment features, this toy hauler fifth wheel is ready for the trails, dunes, or wherever adventure takes you.

Key Features & Highlights:

• Rear Party Deck – Transforms the ramp door into an outdoor entertainment space
• 13' 6" Garage with Queen Bed & Convertible Sofas – Dedicated space for toys and guests
• Overhead Loft with Storage – Perfect for extra sleeping space or gear storage
• Walk-In Shower – Spacious residential-style shower for ultimate comfort
• 60” x 80” Queen Bed in Master Suite – Spacious and private, with slide-out for extra room
• Full Front Walk-In Closet – Plenty of storage with washer/dryer prep
• 4K Smart LED HDTV – Premium entertainment experience for movie nights

Luxury Living & Kitchen Amenities:

• Dual Opposing Slides in Living Area – Expands interior space for ultimate relaxation
• L-Shaped Tri-Fold Sofa – Spacious seating that converts for extra sleeping space
• Large Dinette & 17 Cu. Ft. 12V Refrigerator – Perfect for family meals and extended trips
• Pantry Storage – Keeps dry goods and snacks organized

Built for Durability & Performance:

• 102” Wide-Body Structural Steel I-Beam Construction – Maximizes space and strength
• Rear Ramp Door/Patio with Non-Skid Flooring – Safe and easy access to your garage
• Pass-Through Storage with Slam-Latch Baggage Doors – Extra space for gear and essentials
• 30-Gallon Fuel Tank with Timer – Keeps your ATVs, motorcycles, or UTVs fueled up

All-Season Comfort & Outdoor Features:

• Climate Shield Zero-Degree Weather Protection
  • 35,000 BTU Furnace – Stay warm in cold climates
  • Fully Enclosed & Heated Underbelly – Designed for year-round camping
  • PEX Plumbing System – Prevents freezing and damage
• Three Seasons Garage Wall/Doors – Helps maintain a comfortable interior temperature
• Exterior Marine-Grade Speakers – Keep the party going outdoors

Why Buy from Little Dealer Little Prices?

• Best Prices & No Hidden Fees – Transparent pricing with no surprises
• Huge Inventory & Financing Options – Get the perfect RV at a price that fits your budget
• Expert Service & Support – Factory-trained technicians ensure your RV is road-ready
• Adventure-Ready Guarantee – Every RV is inspected and prepped before leaving the lot

For the ultimate combination of adventure, luxury, and comfort, the 2025 Jayco Seismic 399 is the toy hauler built to take you further. Call or visit Little Dealer Little Prices today!

Stock 360 Tours and Stock Images May Be Shown. Colors and Specs May Vary. Call for Details.

New 2026 JAYCO SEISMIC 399 Toy Hauler Fifth Wheel for sale at Fretz RV of Philadelphia 

•  
• Party Deck
• Queen Bed with Convertible Sofas
• Overhead Garage Loft with Storage
• Walk-in Shower
• 60" x 80" Queen Bed
• 4K Smart LED HDTV

Fretz RV of Philadelphia is the nations premier dealer for all 2023, 2024, 2025 and 2026 Winnebago Minnie, Micro, M-Series, Access, Voyage, Hike, 100, FLX, Flex, Jayco Jay Flight, Eagle, HT, Jay Feather, Micro, White Hawk, Bungalow, North Point, Pinnacle, Talon, Octane, Seismic, SLX, OPUS, OP4, OP2, OP15, OPLite, Air Off Road, and TAXA Outdoors, Habitat, Overland, Cricket, Tiger Moth, Mantis, Ember RV, e-Series, Touring and Skinny Guy Truck Campers. So, if you are in the York, Harrisburg, Lancaster, Allentown, New Jersey, Delaware New York, or Maryland regions; stop by and browse our huge RV inventory today. Fretz RV has been a Jayco Dealer Partner for over 40 years, Winnebago Dealer Partner for over 30 Years.

We also carry used and Certified Pre-owned brands like Forest River, Salem, Wildwood,  TAB, TAG, NuCamp, Cherokee, Coleman, R-Pod, A-Liner, Dutchmen, Keystone, KZ, Grand Design, Reflection, Imagine, Passport, Lance, Solitude, Freedom Lite, Express, Flagstaff, Rockwood, Montana, Passport, Little Guy, Coachmen, Catalina, Cougar,  Sunset Trail, Raptor, Vengeance, Gulf Stream and Airstream, and are always below NADA values. We take all types of trades. When it comes to campers, we are your full-service stop. With over 78 years in business, we have built an excellent reputation in the Recreational Vehicle and Camping industry to our customers as well as our suppliers and manufacturers. With our participation in the Hershey RV Show every year we can display the newest product with great savings to customers! Besides our online presence, at Fretz RV we have a 12,000 Sq. Ft showroom, a huge RV Parts, and Accessories store. We have added a 30,000 square foot Indoor Service Facility that opened in the Spring of 2018. We have a full Service and Repair shop with RVIA Certified Technicians. Financing available. We have RV Insurance through Geico Brown and Brown and Progressive that we can provide instant quotes, RV Warranties through Compass and American Guardian Protective XtraRide, and RV Rentals. We have detailed videos on RVTrader, RVT, Classified Ads, eBay, RVUSA and Youtube. Like and follow us on Facebook, TikTok, Instagram, Twitter X and come visit us every year at the Hershey RV Show. Check out our great Google and Dealer Rater reviews at Fretz RV. Fretz RV of Philadelphia is located at 3479 Bethlehem Pike, Souderton, PA 18964 215-723-3121 

Call for details. #RV #GoCamping #GoRVing #1 #Used #New #PaDealer #Camping

New 2025 Jayco Seismic 399 – The Ultimate Luxury Toy Hauler

Designed for thrill-seekers and outdoor enthusiasts, the 2025 Jayco Seismic 399 delivers the perfect mix of rugged adventure and high-end comfort. With a spacious 13’ 6” garage, party deck, multiple sleeping options, and premium entertainment features, this toy hauler fifth wheel is ready for the trails, dunes, or wherever adventure takes you.

Key Features & Highlights:

• Rear Party Deck – Transforms the ramp door into an outdoor entertainment space
• 13' 6" Garage with Queen Bed & Convertible Sofas – Dedicated space for toys and guests
• Overhead Loft with Storage – Perfect for extra sleeping space or gear storage
• Walk-In Shower – Spacious residential-style shower for ultimate comfort
• 60” x 80” Queen Bed in Master Suite – Spacious and private, with slide-out for extra room
• Full Front Walk-In Closet – Plenty of storage with washer/dryer prep
• 4K Smart LED HDTV – Premium entertainment experience for movie nights

Luxury Living & Kitchen Amenities:

• Dual Opposing Slides in Living Area – Expands interior space for ultimate relaxation
• L-Shaped Tri-Fold Sofa – Spacious seating that converts for extra sleeping space
• Large Dinette & 17 Cu. Ft. 12V Refrigerator – Perfect for family meals and extended trips
• Pantry Storage – Keeps dry goods and snacks organized

Built for Durability & Performance:

• 102” Wide-Body Structural Steel I-Beam Construction – Maximizes space and strength
• Rear Ramp Door/Patio with Non-Skid Flooring – Safe and easy access to your garage
• Pass-Through Storage with Slam-Latch Baggage Doors – Extra space for gear and essentials
• 30-Gallon Fuel Tank with Timer – Keeps your ATVs, motorcycles, or UTVs fueled up

All-Season Comfort & Outdoor Features:

• Climate Shield Zero-Degree Weather Protection
  • 35,000 BTU Furnace – Stay warm in cold climates
  • Fully Enclosed & Heated Underbelly – Designed for year-round camping
  • PEX Plumbing System – Prevents freezing and damage
• Three Seasons Garage Wall/Doors – Helps maintain a comfortable interior temperature
• Exterior Marine-Grade Speakers – Keep the party going outdoors

Why Buy from Little Dealer Little Prices?

• Best Prices & No Hidden Fees – Transparent pricing with no surprises
• Huge Inventory & Financing Options – Get the perfect RV at a price that fits your budget
• Expert Service & Support – Factory-trained technicians ensure your RV is road-ready
• Adventure-Ready Guarantee – Every RV is inspected and prepped before leaving the lot

For the ultimate combination of adventure, luxury, and comfort, the 2025 Jayco Seismic 399 is the toy hauler built to take you further. Call or visit Little Dealer Little Prices today!

Stock 360 Tours and Stock Images May Be Shown. Colors and Specs May Vary. Call for Details.