2026 Jayco Seismic 359
Exterior Colors:
- Year 2026
- Make Jayco
- Model Seismic
2026 Jayco Seismic 359
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
- 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)
- Hardwood safety handrail on hallway steps
- Carbon monoxide and LP detector
- 5/8 in. tongue-and-groove joined plywood main floor decking and 3/8 in. tongue-and-groove plywood roof decking
- Handcrafted and glazed doors, drawers, and trim
- Solid hardwood cabinet doors
- Residential finished dovetail-jointed drawers throughout
- Heavy-duty, 75 lb., full-extension, steel ball-bearing drawer guides
- Stain-protected fabric on all furniture
- Residential “Do it all” sink with pull-out kitchen faucet, glass rinse, and vegetable rinse
- Porcelain foot-flush toilet
- Inverter pre-wire
Dimensions
Overall Length
41' 9" | Pin to bumper: 40' 2"
Overall Height
12' 9"
Overall Height with AC
13' 3" | With 2nd A/C: 13' 3"
Overall Width
8' 6" | With slides out: 11' 6"
Interior Height
Main:8' 3" | Upper deck: 6' 5"
Awning Size
Length: 17' 0" | Length 2: 11' 0"
Garage Length
11' 0"
Weights
Dry Weight, Hitch
2,990 lbs
Weight
13,405 lbs
GVWR
17,500 lbs
Capacities
Cargo Capacity
4,095 lbs
Fresh Water Capacity
106.0 gals
Gray Water Capacity
87.0 gals
Black Water Capacity
87.0 gals
LP Tank Capacity
60 lbs
Fuel Capacity
27 gals
Water Heater
16
Sleeping Capacity
up to 6
Operational
Furnace Output
35000 BTU
Wheels & Tires
Tires, Rear Specification
215/75R17.5'H'
Features
Features
# of outside storage compartments: 2