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Image #1 - New 2027 Jayco Seismic 399 Toy Hauler Fifth Wheel - Stock #ORD23702
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Image #2 - New 2027 Jayco Seismic 399 Toy Hauler Fifth Wheel - Stock #ORD23702 - Floorplan
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Image #3 - New 2027 Jayco Seismic 399 Toy Hauler Fifth Wheel - Stock #ORD23702
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Image #4 - New 2027 Jayco Seismic 399 Toy Hauler Fifth Wheel - Stock #ORD23702
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Image #5 - New 2027 Jayco Seismic 399 Toy Hauler Fifth Wheel - Stock #ORD23702
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Image #6 - New 2027 Jayco Seismic 399 Toy Hauler Fifth Wheel - Stock #ORD23702
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Image #7 - New 2027 Jayco Seismic 399 Toy Hauler Fifth Wheel - Stock #ORD23702
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Image #8 - New 2027 Jayco Seismic 399 Toy Hauler Fifth Wheel - Stock #ORD23702
- SALE PRICE: $105,495
- MSRP: $201,118
- You Save: $95,623
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47ft long
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14,950 lbs
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Sleeps 9
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3 slides
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Bath and a HalfLoft
399 Floorplan
Specifications
| Sleeps | 9 | Slides | 3 |
| Length | 46 ft 9 in | Ext Width | 8 ft 6 in |
| Ext Height | 13 ft 2 in | Int Height | 8 ft 3 in |
| Hitch Weight | 3310 lbs | GVWR | 20400 lbs |
| Dry Weight | 14950 lbs | Cargo Capacity | 5450 lbs |
| Fresh Water Capacity | 106 gals | Grey Water Capacity | 87 gals |
| Black Water Capacity | 87 gals | Tire Size | 17.5" |
| Furnace BTU | 35000 btu | Fuel Capacity | 30 gals |
| Number Of Bunks | 1 | Available Beds | King |
| Refrigerator Type | 12 Volt | Refrigerator Size | 17 cu ft |
| Cooktop Burners | 3 | Number of Awnings | 3 |
| Garage Size | 13 ft 6 in | LP Tank Capacity | 30 lbs |
| Water Heater Type | On Demand Tankless | AC BTU | 30000 btu |
| TV Info | LR 4K Smart LED HDTV | Awning Info | 21' Electric w/LED Lights, 11' Electric, 10' Rear |
| Axle Count | 3 | Washer/Dryer Available | Yes |
| Number of LP Tanks | 2 | Shower Type | Walk-In Shower |
| Electrical Service | 50 amp | Solar Wattage | 400 watts |
Description
Jayco Seismic 399 For Sale at Fretz RV - Pre Order SpecialÂ
Jayco Seismic toy hauler 399 highlights:
- Party Deck
- Queen Bed with Convertible Sofas
- Overhead Garage Loft with Storage
- Walk-in Shower
- 72" x 80" King Bed
- 4K Smart LED HDTV
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Get ready for outdoor adventures in this spacious toy hauler. Your guests will have the 13' 6" garage with a 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 roll-top table 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 king bed for added floor space, plus a full front walk-in closet, a dresser, and washer/dryer prep!
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One look at the Seismic toy hauler fifth wheels 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-season 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 and a fully enclosed and heated underbelly for better protection against the elements. 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 roller shades, and more!
Features
Standard Features (2027)
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PLEASE NOTE: Features and options separated by type below
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FIFTH WHEELS
Exterior Equipment
- 102 in. wide body structural steel I-beam construction
- Magnum Trussâ„¢ XL6â„¢ roof system (strongest tested roof in the industry) with a PVC roof membrane system (limited lifetime warranty)
- Stronghold VBLâ„¢ aluminum-framed and vacuum-bond-laminated gel-coated fiberglass exterior walls and slide room end walls
- NPS 6,000W generator with built-in pure sine inverter and gas/C.A.R.B certified with remote
- Helix cooling systemâ„¢ (industry exclusive):
- Jayco-exclusive insulated dual duct design
- Directional and closeable A/C vents
- 35,000 BTU high-capacity furnace
- Climate shieldâ„¢ zero-degree tested weather protection:
- Double layer fiberglass batt insulation in ceiling and floor
- Double sided radiant barrier insulation (roof and floor)
- Painted fiberglass front cap with clear coat and built-in specialty integrated RGB lighting app controlled
- Custom, automotive-grade vinyl exterior graphics package
- JaySMARTâ„¢ (safety markers and reverse travel) LED lighting
- JayPortâ„¢ outside griddle prep (standard on all floorplans without a standard outside kitchen)
- 50-amp service
- Battery disconnect switch
- Detachable shore power cord
- Digital TV antenna
- Satellite prep
- Starlink prep
- LED exterior lighting package
- LED-lighted enclosed nautilus docking station
- Dual black tank flush, winterization and sanitation station
- Quick-connect outside shower with hose and sprayer
- 5 in. fresh water drain valve
- LP quick-connect
- Pass-through storage with slam-latchâ„¢ baggage doors
- Keyed-alikeâ„¢ lock system
- Under-mounted spare tire
- 6-point hydraulic leveling
Interior Equipment
- King bed (Select Models)
- Residential quilted bedspread
- P.A.P. prepped bedroom (both sides)
- Carbon monoxide and LP detector
- Central command center with built-in tank monitoring
- Removable shower head sprayer
- Solid hardwood raised panel glazed doors and drawers
- Hardwood safety handrail on hallway steps
- Heavy-duty, 75 lb., full-extension, steel ball-bearing drawer guides
- Residential finished dove-tail jointed drawers throughout
- 5/8 in. tongue-and-groove joined plywood main floor decking and 3/8 in. tongue-and-groove plywood in the roof
- USB-C 12V charging ports (multiple locations throughout)
- 12V Inverted to 110V receptacles
- LED fireplace with electric 5,000 BTU space heater (select models)
- LED interior lighting throughout
- No in floor heat registers throughout the coach
- Porcelain foot flush toilet
- Bathroom skylight
- PEX plumbing
- Water Shutoff at all faucet locations
- Residential "Do it all" sink with pull-out kitchen faucet, glass rinse and vegetable rinse
- Washer/dryer prep
- Vinyl flooring in slide outs (no carpet)
- Super sofa or theatre seats with heat, power recline and LED lighting (select models)
- Gas-strutted under-bed storage
- Stain-protected performance fabric on all furniture
Customer Value Package (Mandatory)
- 106 gal. freshwater capacity
- Residential NuvoH2O® whole-coach water treatment system with water softening and triple-cartridge filters
- 60,000 BTU on-demand tankless water heater
- (2) 60 lb. LP gas bottles
- 12V 17 cu. ft. black glass refrigerator
- 30 in. residential microwave
- 21 in. 3-burner oven
- (3) high-efficiency soft-start A/Cs
- Teak shower seat prep
- MB Quart® Bluetooth® stereo system with (2) interior and (2) exterior speakers
- 4K Smart LED HDTV
- Glass shower door
- Roller blackout nightshades
- Soft-close hidden hinges and magnetic door catches on cabinet doors
- Lumber-core-style face frames
- Triple-slide glass shower door
- Bathroom power vent
- MORryde® 4-step strut-assisted fold-away entrance steps (main entrance)
- Universal docking station with outside shower
- Factory-installed collapsible roof ladder
- Main electric awning with app-controlled RGB LED lights
- Second electric awning with app-controlled RGB LED lights
- Fully enclosed, heated underbelly (ducted)
- Overlander II Solar Package: 400W solar panel, MPPT 30-amp solar controller and 1,800W inverter
Ramp and Cargo Equipment
- 30 gal. fuel tank with locking enclosed pump and timer
- 3-season locking garage wall
- 5,000 lb. minimum breaking load garage D-rings mounted to the steel frame
- HappiJac® electric-lift queen beds with convertible sofas, folding armrests and cup holders
- Rear loft ladder
- High-intensity LED ramp lights
- Ram air vents with power roof vent
- Lift-assisted, weatherproof, anti-skid ramp door
- Powder-coated aluminum patio kit with gate and steps
- Tuff-Ply® rubberized garage floor liner
- Power ramp patio awning with LED lighting
5 Star Handling Package (Mandatory)
- 17.5 in. H-rated, 16-ply tires
- Aluminum rims
- Dexter® axles with ABS, Tow Assist and sway mitigation
- Nev-R-Adjust® brakes
- Greaseable wet bolt fasteners with bronze bushings and 4,000 lb. leaf springs
- MORryde® CRE3000 suspension system
- Rota-Flex® king pin
- Backup and side camera prep
- Entry door security camera prep
Options
- Tinted safety glass windows
- Frameless dual-pane tinted safety glass windows
- Tank heat pads
- Outside griddle for JayPortâ„¢ system
- King bed (select models)
- Queen bed (select models)
Paint Options
- Titanium full-body paint
- Charcoal full-body paint
- Metallic blue full-body paint
- Metallic copper full-body paint
- Metallic red full-body paint
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TRAVEL TRAILERS
Exterior Equipment
- 102 in. wide-body structural steel I-beam construction
- Magnum Trussâ„¢ XL6â„¢ Roof System (strongest tested roof in the industry)
- PVC roof membrane
- Stronghold VBLâ„¢ aluminum-framed and vacuum-bonded, laminated gel coated, fiberglass exterior walls and slideroom end walls
- Painted fiberglass front cap with clear coat and built-in specialty LED lighting
- Climate Shieldâ„¢ zero-degree tested weather protection
- HELIX Cooling System (Industry exclusive)
- Jayco exclusive insulated dual duct design
- Directional and closeable A/C vents
- 35K BTU output furnace
- (2) 20 lb. LP gas bottles with auto-regulator, ABS cover, & fill gauge
- Double layer fiberglass batt insulation in ceiling and floor
- Double sided radiant barrier insulation (roof and floor)
- Custom automotive-grade vinyl exterior graphics package
- 50-amp service
- Battery disconnect switch
- Lippert Solid Step®
- Backup camera prep
- Power tongue jack
- Detachable shore power cord
- Digital TV antenna
- Satellite prep
- Starlink Prep
- Exterior outside shower/w hose and sprayer
- Black tank flush, winterization and sanitation
- LP quick-connect
- LED exterior lighting package
- Roof ladder prep
Interior Equipment
- King bed
- Stain protected fabric on all furniture
- 5/8 in. tongue-and-groove joined plywood main floor decking and 3/8 in. tongue-and-groove plywood in the roof
- PEX plumbing
- Carbon monoxide and LP detector
- Central command center with built-in tank monitoring
- Inverter pre-wire
- LED fireplace with electric space heater (select models)
- LED interior lighting throughout
- Solid hardwood cabinet doors
- Handcrafted and glazed doors, drawers and trim
- Residential finished dovetail-jointed drawers throughout
- Heavy-duty, 75 lb., full-extension, steel ball-bearing drawer guides
- No in-floor heat registers throughout the coach
- USB-C 12v charging ports (multiple locations throughout)
- Bathroom skylight
- Porcelain foot flush toilet
- Medicine cabinet with custom framed mirror
- High Rise Kitchen Faucet
- C.P.A.P prepped bedroom (both sides)
- Vinyl flooring in slide outs (no carpet)
- Residential vinyl flooring (made in the USA)
Ramp And Cargo Equipment (Mandatory)
- 30 gal. fuel tank with locking, enclosed pump and timer
- 5,000 lbs. Garage D-rings mounted to the steel frame
- HappiJac® electric-lift queen beds with convertible sofas
- LED high-intensity ramp lights
- Ram air vents and power roof vent
- Tuff-ply, rubberized garage floor liner
- Weather resistant rear ramp door and patio with anti-slip, non-skid flooring
- Patio ramp patio with anti-slip, non-skid flooring
- Power ramp patio awning with LED lighting
- Roll down garage screen (Unless 3 season door is selected)
Customer Value Package (Mandatory)
- 60K BTU On-demand tankless hot water heater
- 106 gal. fresh water capacity
- Glass front 12v refrigerator
- Residential microwave
- 5K BTU A/C
- 17 in. oven with 3 burners
- 4K Smart LED HDTV
- MB QUART Bluetooth® stereo with 4 speakers
- Roller blackout night shades
- Soft close hidden hinges and magnet door catches on cabinet doors
- Lumber core style face frames
- Drop-down knife rack
- Integrated cup washer at sink
- Bathroom power vent
- Roll-away shower door
- JayPort® 2 in. mount (for outside accessories)
- Power tongue jack with LED light
- Electric awning with LED lighting
- High gloss gel coat exterior fiberglass side walls
- Fully enclosed and heated underbelly (ducted)
- MORyde Fold Away Entrance Steps (Main Entrance)
- LED fireplace with 5K BTU space heater (select models)
- Keyed-Alikeâ„¢ lock system
- Overlander 1 Solar Package: 200W panel and 30-amp solar controller)
5 Star Handling Package (Mandatory)
- Dexter® axles with Nev-R-Adjust® brakes and E-Z Lube® hubs
- Wet bolt fasteners, bronze bushings
- 4,000 lb. leaf springs
- CRE-3000 suspension
- 16 in. aluminum rims
- Under-mounted spare tire
- Rear camera prep
Options
- NPS - 6,000WÂ generator with built in pure sign inverter, gas/C.A.R.B certifeid w/ remote
- Second A/C
- 3-season removable garage wall
- Overlander 2 Solar Package: (2) 200W panels, MPPT 30-amp solar controller and 1800W inverter
- Queen bed in place of king
Please see us for a complete list of features and available options!
All standard features and specifications are subject to change.Â
All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.Â
Due to the current environment, our features and options are subject to change due to material availability.
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Fretz RV is a Pennsylvania RV dealer located in Souderton, PA, offering new and used RVs from top brands including Jayco, Winnebago, Pleasure-Way, Roadtrek, Coachmen, Leisure Travel, Renegade, Ember RV, and more.
Ask us about the Fretz R-VIP Package, available with all RV purchases, which may include free camping, roadside assistance, and RV tech support.
Disclaimer
All RV inventory is subject to prior sale and availability. Prices exclude sales tax. Advertised prices may include financing discounts when financing through a Fretz RV approved lender. Photographs may be representative only and may differ from actual inventory units. Manufacturer images, specifications, and features may be used for display purposes. Advertised payments are estimates based on approved credit and typical RV financing terms with 30% down payment. Rates and loan terms may vary based on lender approval.Â
We make every effort to ensure all information, pricing, specifications, and descriptions are accurate; however, accuracy cannot be guaranteed. Typographical errors, pricing errors, option errors, and listing inaccuracies may occur. Please contact Fretz RV to confirm availability, features, specifications, and current pricing before purchase.
Fretz RV — Souderton, Pennsylvania. Serving Philadelphia, Allentown, Lancaster, York, Harrisburg, New Jersey and the greater Northeast RV market.
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.

