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2018 Jayco Seneca 37HJ
UsedStock #118533XA
Freightliner® S2RV chassis · Cummins® ISB 6.7L 360 HP diesel engine - 800 lb.-ft. torque
Listing price
2018 Seneca 37HJ
Other floor plans with a similar body style, feature mix, and price range, prioritizing other manufacturers and brands.
What sets the 37HJ apart is how it drives: the Cummins ISB 6.7L 360-horsepower diesel backed by an Allison 3000 MH transmission delivers a composed, truck-like feel that owners consistently call out as one of its best qualities, and the engine exhaust brake and 12,000-lb. rear hitch make serious towing genuinely practical. Inside, the full-body paint and StrongholdVBL laminated construction signal premium intent, while 84-inch ceilings, raised-panel hardwood cabinetry, and tile-like vinyl flooring give the living space a more residential feel than most Class C coaches. The overhead bunk with a 750-lb. capacity adds real sleeping room without sacrificing the main living area, and the exterior entertainment center with swivel-mounted LED TV means the fun doesn't stop at the door. An 8,000-watt Onan Quiet Diesel generator, four 6V AGM house batteries, Winegard in-motion satellite dish, and full pass-through storage round out a rig that's genuinely ready to be somewhere off the grid.
Length
38 ft 11 in
GVWR
29,000 lbs
Sleeps
7
Slideouts
3
Many factors play into a unit's listing price and what you should pay. This guide provides a ballpark estimate, but it does not factor in your exact scenario or how different listings are equipped.
There may be room for price negotiation.
$102,991 – $158,995
This unit is ranked 2 of 4 by asking price in this group.
Campers Inn RV
Acworth, GA
Compared with 1,119 dealers nationwide
Experience luxury, power, and comfort in the Jayco Seneca 37HJ Class C diesel motorhome. Built on a Freightliner S2RV chassis and powered by a Cummins ISB 6.7L diesel engine, this coach is designed for travelers who want premium performance without sacrificing residential-style amenities.
With triple slide-outs, abundant storage, and a spacious interior, the Seneca 37HJ delivers the perfect combination of convenience and relaxation for extended adventures.
Whether you're heading across the country or spending a weekend at your favorite campground, the open-concept living area provides plenty of room to spread out and entertain.
The large roadside slide features comfortable seating, a dinette, and a hide-a-bed sofa, with optional upgrades available to match your lifestyle. Outside, the 18' power awning creates a shaded outdoor living space, while the exterior entertainment center makes tailgating, movie nights, and campground gatherings more enjoyable than ever.
Triple Slide-Outs for expanded living space
18' Power Awning with outdoor entertainment area
Exterior Entertainment Center
Spacious Interior and Exterior Storage
Residential-Style Living Area
King-Size Bed
Solid-Surface Countertops with Decorative Backsplash
One-Piece Fiberglass Shower with Glass Door
Full-Body Paint with Diamond Shield Protection
Winegard In-Motion Satellite Dish
Built with Jayco's renowned craftsmanship, the Seneca features high-gloss vacuum-bonded laminated construction, a crowned roof, premium furnishings, and the exclusive JRide Premium ride and handling package. Enhanced with computer-balanced driveline components, rear air suspension, heavy-duty stabilizer bars, full air brakes, and a Garmin infotainment system, every mile is engineered for comfort and confidence.
If you're searching for a luxury Class C diesel motorhome with premium amenities, superior storage, and exceptional road performance, the Jayco Seneca 37HJ is ready to exceed expectations and elevate every journey.
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