{"@context":"https://schema.org","@type":"Product","name":"13 New Jayco SEISMIC RVs for sale in Pennsylvania","offers":{"@type":"AggregateOffer","offerCount":13,"lowPrice":"49981.00","highPrice":"130995.00","priceCurrency":"USD","offers":[{"@type":"Offer","url":"https://www.rvt.com/buy/details/2026-jayco-seismic-399/fc9dfa82-d006-11f0-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2026 JAYCO SEISMIC 399","description":"2026 Jayco Toy Haulers Seismic 399,

Click here for options and features

2026 Jayco Seismic 399

The 2026 Jayco Seismic Toy Hauler is built for adventure, offering rugged durability and high-end comfort for all-season camping. With Climate Shield™ zero-degree tested weather protection, a 35,000 BTU furnace, and double-layer fiberglass batt insulation, you’ll stay comfortable in any climate. The fully enclosed and heated underbelly ensures peace of mind even in freezing conditions. With a blend of durability, luxury, and cutting-edge technology, the 2026 Jayco Seismic Toy Hauler is ready for your next great adventure.

Features may include:

Exterior

102 in. wide-body structural steel I-beam construction

Stronghold VBL™ aluminum-framed and vacuum-bond laminated gel-coated fiberglass exterior walls and slide room end walls

Magnum Truss™ XL6™ Roof System (strongest tested roof in the industry) with Alpha roof membrane system (limited lifetime warranty)

Painted fiberglass front cap with clear coat and built-in specialty LED lighting

Custom automotive-grade vinyl exterior graphics package

Climate Shield™ zero-degree tested weather protection

NPS Powered by Yamaha® 6,000-watt generator with built-in pure sine inverter (gas/C.A.R.B. certified)

6-point hydraulic auto-leveling system

Battery disconnect switch

Detachable shore power cord

Dual 30 lb. propane bottles with auto regulator

Water heater bypass

LP quick-connect

Exterior marine-grade speakers

Digital TV antenna

Folding roof ladder

LED exterior lighting package

JaySMART™ (Safety Markers And Reverse Travel) LED lighting (patented)

HELIX Cooling System™ (industry exclusive)

Pass-through storage with Slam-latch™ baggage doors

Under-mounted spare tire

Fully enclosed, LED-lighted universal docking center

Interior

Olympic king bed (359 & 413)

Residential quilted bedspread

Gas-strutted under-bed storage

Washer/dryer prep

12V charging station

Bathroom skylight

Central command center with built-in tank monitoring

Custom interior design (Dune Gray)

LED interior lighting throughout

No in-floor heat registers throughout the coach

Vinyl flooring in slideouts (no carpet)

Residential vinyl flooring (made in the USA)

includes

New 2027 Jayco Seismic 413 Toy Hauler Fifth Wheel for Sale at Fretz RV

We are accepting factory orders now for priority delivery. Please contact us for details on current in-stock availability and estimated arrival times for new orders.

Jayco Seismic toy hauler 413 highlights:

Two Party Decks
Convertible Sofas with Queen Bed
Overhead Garage Storage
72\" x 80\" King Bed
Triple Axles

Fretz RV of Philadelphia is your premier RV dealership for new and used RVs! We proudly carry 2023, 2024, 2025, and 2026 models from top brands like Winnebago Minnie, Micro, M-Series, Access, Thrive, Voyage, FLX, Flex, plus Jayco Jay Flight, Eagle, Jay Feather, Air, North Point, Pinnacle, Bungalow, Seismic, and SLX.

We re also your go-to dealer for OPUS Campers (OP4, OP2, OP15, OPLite, Air Off Road), TAXA Outdoors (Habitat, Overland, Cricket, Tiger Moth, Mantis), and Ember RV (e-Series, Touring)

Serving Philadelphia, York, Harrisburg, Lancaster, Allentown, New Jersey, Delaware, New York, and Maryland Fretz RV has one of the largest selections of new, used, and Certified Pre-Owned RVs around! We proudly sell brands like Forest River, Salem, Wildwood, NuCamp (TAB, TAG), Cherokee, Coleman, R-Pod, A-Liner, Dutchmen, Keystone, KZ, Grand Design, Passport, Lance, Solitude, Coachmen, Catalina, Cougar, Sunset Trail, Raptor, Vengeance, Gulf Stream, and Airstream all priced below NADA book value.

With over 79 years of experience, we ve built a trusted reputation in the RV industry as a Winnebago Dealer Partner for over 30 years and a Jayco Dealer Partner for over 40 years.

Why Choose Fretz RV?

New 2026 JAYCO SEISMIC 359 Fifth Wheel Toy Hauler for Sale at Fretz RV of Philadelphia

Jayco Seismic toy hauler 359 highlights:

Party Deck
Convertible Sofas with Queen Bed
Overhead Garage Storage
Fireplace
72\" x 80\" King Bed
4K Smart LED HDTV
half bath in garage

We re also your go-to dealer for OPUS Campers (OP4, OP2, OP15, OPLite, Air Off Road), TAXA Outdoors (Habitat, Overland, Cricket, Tiger Moth, Mantis), and Ember RV (e-Series, Touring)

With over 79 years of experience, we ve built a trusted reputation in the RV industry as a Winnebago Dealer Partner for over 30 years and a Jayco Dealer Partner for over 40 years.

Why Choose Fretz RV?

Huge indoor showroom (12,000+ sq. ft.)
30,000 sq. ft. Indoor Service Facility
RV Parts & Accessories Superstore
Full-Service RVIA Certified Repair Shop
Easy RV Financing
Instant RV Insurance Quotes (Geico, Prog","itemCondition":"Used","priceCurrency":"USD","price":"79932.00"}},{"@type":"Offer","url":"https://www.rvt.com/buy/details/2027-jayco-seismic-413/f93e0e09-a592-11f0-beaa-02c8259c7411/","itemOffered":{"@type":"Thing","name":"2027 JAYCO SEISMIC 413","description":"2027 Jayco Seismic 413, Toy Hauler Fifth Wheel, New 2027 Jayco Seismic 413
Fretz RV is taking future orders at deeply discounted prices. Fill out an order form today for an immediate 2026 delivery!

Jayco Seismic toy hauler 413 highlights:
- Two Party Decks
- Convertible Sofas with Queen Bed
- Overhead Garage Storage
- 72\" x 80\" King Bed
- Triple Axles
Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' separate garage area with its own half bath, a queen bed with rear convertible sofas, plus a loft for more sleeping or storage space. The main living area includes a large slide out for added space, and here you can relax on the sofa that sits across from the entertainment center with a 50\" TV. The chef will love the U-shaped kitchen counter, 17 cu. ft. 12V refrigerator, and residential oven with a three burner cooktop. Up front, the private bedroom includes a king bed with a queen bed option, a slide out with dual wardrobes and a dresser, and quick access to the dual entry full bath! The exterior is just as accommodating with its 40\" exterior TV, rear party deck and side patio party deck, and triple awnings for ample protection against the sun!

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!
","itemCondition":"Used","priceCurrency":"USD","price":"130995.00"}}]}}