2020 JAYCO SENECA 37 TS
2020 Jayco Seneca 37TS
A Class C diesel with a front living / rear bedroom layout, three power slide-outs, and a well-documented list of ride and roof upgrades.
Chassis Power
Cummins ISB 6.7L | 360 HP
51,733 Miles | Freightliner S2RV Chassis
- ›Allison 3000 MH automatic transmission
- ›4-point auto leveling jacks
- ›Backup & side-view cameras
- ›Sumo Springs, Gabriel shocks & steering stabilizer
Unit Specifications
Class C Diesel | 39′ 4″
Freightliner S2RV | 50 Amp Service
- ›Front living, rear bedroom layout
- ›Sofa & dinette convert to sleeping
- ›2 slide toppers
- ›8,000W diesel generator, 752.1 hrs
Seneca 37TS Floorplan
Four-Season Comfort
Built for year-round use, not just fair-weather trips
- ›2 ducted A/C units
- ›Ducted gas forced-air furnace
- ›Enclosed, heated underbelly
- ›Tinted windows
Length
39′
4 in
Engine
Cummins ISB
6.7L, 360 HP
Gross Weight
Upon Request
Sleeps
6
Slides
3
2 w/ toppers
AeroArmor Solar Shield Roof
Spray-on polyurea roof system backed by a lifetime no-leak warranty, transferable to you.
Full Body Paint
Automotive-grade full body paint with aluminum wheels.
Ride Upgrades
Sumo Springs, Gabriel shocks, and a steering stabilizer for a smoother, more controlled ride.
“This 2020 Jayco Seneca 37TS pairs a front living / rear bedroom layout with a well-maintained history and a meaningful list of owner-added upgrades. A Cummins diesel powerplant, triple slide-outs, dual ducted air conditioning, and an enclosed underbelly make it a turn-key choice for full-time or seasonal travel. Ride-quality upgrades — Sumo Springs, Gabriel shocks, and a steering stabilizer — combine with a lifetime-warrantied AeroArmor roof system for genuine peace of mind on the road.”
Fresh Water
72
gal
Gray Tank
40
gal
Black Tank
50
gal
Height
13′
4 in
Width
8′
5 in
Feature Explorer
Filter specifications to find what matters to you.
🍳 Kitchen
- • Solid Surface Countertop
- • Residential 110V Refrigerator w/ Ice Maker
- • Convection Microwave
- • Fantastic Fan Ventilation
- • Outside Stove
🛋️ Living Room
- • Front Living Room Layout
- • 3 Flat Screen TVs
- • Theater Seating
- • MCD Blackout / Solar Shades
🛌 Sleeping
- • Rear Bedroom w/ Queen Bed
- • Sofa Converts to Bed
- • Dinette Converts to Bed
- • Washer/Dryer Prep
🌳 Outdoor Living
- • Power Awning
- • Outside Speakers
- • Outside TV w/ Cable & Satellite Hookups
- • Blackstone Griddle & Table (Owner-Disclosed)
- • Tow Bar Included (Owner-Disclosed)
⚙️ Cockpit Tech
- • Backup Camera (Installed)
- • Side-View Cameras (Installed)
- • 4-Point Auto Leveling Jacks
🏗️ Build Quality
- • AeroArmor Solar Shield Roof (Lifetime No-Leak Warranty, 1x Transferable)
- • Fiberglass Sides, Front Cap & Rear Cap
- • Enclosed Underbelly
- • Tinted Windows
💧 Systems
- • 8,000W Diesel Generator (752.1 Hrs)
- • 4 Coach Batteries
- • 50 Amp Service
- • 2 Ducted A/C Units
- • Gas Ducted Forced-Air Furnace
- • 6-Gal LP/Electric Water Heater
Tire Information
The DOT date code on this unit reads 2524, meaning the current tires were manufactured in the 25th week of 2024 (approximately June 2024) — consistent with owner records showing new Toyo tires installed in August 2025. As a general industry guideline, RV tires are typically recommended for replacement every 5–7 years regardless of tread wear, due to age-related rubber degradation. At roughly two years of age, these tires fall well within that window. This unit does not include a spare tire.