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New 2026 Thor Motor Coach Aria 3901

Motor Home Class A - Diesel

Stock #26NAATOTMCA3901

Naperville IL

Available to order – not currently on our lot. Contact us today or stop by for details!

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Specifications

Sleeps	7	Slides	3
Length	39 ft 11 in	Ext Width	8 ft 5 in
Ext Height	12 ft 6 in	Int Height	7 ft
Interior Color	Mondovi III, Cambria III, Naples	Exterior Color	Full Body Paint; Cobalt, Acadia, Luna, Santorini
Hitch Weight	10000 lbs	GVWR	35320 lbs
Fresh Water Capacity	91 gals	Grey Water Capacity	51 gals
Black Water Capacity	51 gals	Tire Size	275/80R 22.5
Furnace BTU	40000 btu	Generator	Onan RV QD 8000 Diesel
Fuel Type	Diesel	Engine	Cummins ISB-XT 6.7L
Chassis	Freightliner XC-R	Horsepower	360 hp
Fuel Capacity	100 gals	Wheelbase	270 in
Number Of Bunks	1	Available Beds	King Tilt-A-View
Torque	800 ft-lb	Refrigerator Type	Double Door Residential w/In Door Water and Ice
Refrigerator Size	21.4 cu ft	Convection Cooking	Yes
Cooktop Burners	2	Shower Size	52" x 30"
Number of Awnings	1	LP Tank Capacity	105 lbs
Water Heater Type	Tankless	AC BTU	30000 btu
Basement Storage	215 cu. ft.	TV Info	LR 43" LED Smart HDTV and 55" LED Smart HDTV, BR 32" LED Smart TV, Ext. 40" LED TV
Awning Info	20' Power Lateral Arm with LED Lighting	Washer/Dryer Available	Yes
Gross Combined Weight	45320 lbs	Shower Type	Standard
Electrical Service	50 amp

Description

Thor Motor Coach Aria Class A diesel motorhome 3901 highlights:

Full and Half Bath
Ten Seatbelts
68" Sofa Bed
Drop-Down Cab Bunk
Stackable Washer/Dryer
Exterior LED TV

2026 Thor Motor Coach Aria 3901 | Order Now!

Step into the 2026 Thor Motor Coach Aria 3901 and experience a diesel Class A motorhome designed for travelers who want space, sophistication, and effortless comfort. With three expansive slide outs, this coach opens into a residential-style retreat featuring captain’s chairs that swivel, a mid-coach half bath, and a rear full bath with dual sinks—perfect for long trips, guests, and everyday convenience.

Entertaining is easy and enjoyable thanks to generous seating and multiple seatbelts that let you bring everyone along. Relax in the Dream Dinette, stretch out on the tri-fold sofa, or unwind in the reclining theater seats. The living area invites cozy evenings with a fireplace and two LED TVs, creating the perfect atmosphere for movie nights or relaxing downtime.

Cooking becomes a pleasure with the well-equipped kitchen featuring a convection microwave oven, electric induction cooktop, and a 21.4 cu. ft. double-door residential refrigerator. A dedicated pantry ensures you have room for every ingredient. When the day winds down, retreat to the walk-through bedroom where the Tilt-A-View inclining king bed delivers customized comfort before you enter the spa-like full bathroom.

Behind the wheel, the Aria 3901 offers a driving experience as refined as its interior. Its VFS front axle with a 55-degree wheel cut, Air-Ride suspension, and Sachs shock absorbers create a smooth, confident ride. The driver enjoys a 10.1" touchscreen dash radio with Bluetooth and Sirius/XM prep, along with leatherette reclining/swivel captain’s chairs for premium comfort mile after mile.

Throughout the coach, high-end craftsmanship shines with Wyndham cabinetry, solid-surface countertops, designer tile backsplash, and a large double-bowl stainless steel sink with pull-down sprayer. From the oversized full-height shower to the thoughtfully designed storage solutions, the Aria 3901 elevates every aspect of RV living.

Available to Order from Campers Inn RV of Naperville

This Available to Order unit lets you secure the exact model, floorplan, and features you want, backed by Campers Inn RV of Naperville’s expert guidance and seamless order process—ensuring your custom-built motorhome arrives exactly the way you envision it.
Call and connect with you RV Matchmaker today! (815) 726-1900

Why Buy From Campers Inn RV?

At Campers Inn RV, we’re more than just a dealership—we’re your camping partner for life. With over 50 years of trusted service, we offer:

Nationwide support through one of the largest RV dealer networks
Experienced, knowledgeable staff focused on customer satisfaction
Transparent pricing with no hidden surprises
Trusted service departments offering long-term RV support
Extensive inventory selection to help you find the perfect model
Family-owned dealership devoted to honesty, care, and long-term relationships

Call Us Today at 815-726-1900

Features

Standard Features

Construction & Exterior

Freightliner® XC-R Raised Rail Chassis with Atlas™ Foundation
Cummins® ISB-XT 6.7L Engine with 360HP and 800 lb.-ft. Torque
STEALTH Black-Out Package
CHROME Package (optional)
160-amp, 12-volt Alternator
In-Block, 750 Watt Engine Heater
6 Speed Allison MH-3000 Automatic Transmission
Full Air Front and Rear Drum Anti-Lock Brakes
VFS Front Axle with 55° Wheel Cut
Air-Ride™ Suspension
Exhaust Brake
Sachs® Shock Absorbers
295/80R 22.5” Radial Tires with Aluminum Wheels
Under-Hood Light
Dual Fuel Fills
10,000-lb. Trailer Hitch with 7-pin Round Connector
Automatic Leveling Jacks with Touchpad Controls
Welded Tubular Steel Floor
Welded Tubular Aluminum Roof and Sidewall Cage Construction
Vacu-Bond Laminated Roof, Walls and Floors with Block Foam Insulation
One-Piece Fiberglass Front and Rear Caps
One-Piece Windshield
Premium One-Piece Domed Roof Membrane
Roof Ladder
Full-Body Paint Package with Gel-Coat Sidewalls
Invisible Front Paint Protection
Basement Pass-Through Storage
Side-Hinged Aluminum Compartment Doors w/ Gas Pistons
Lighted Storage Compartments
Easy Slide Storage Tray
Power Entry Door and Patio Lateral Arm Awnings with Integrated LED Lighting
Slide-out Room Topper Awnings
Patio Light (Both Sides)
Double Electric Entry Step
Entry Door with Dead Bolt Lock
Keyless Entry System
Acrylic Exterior Grab Handle
Frameless Dual Pane Windows
TMC Insignia puddle light mounted in Patio Side of front wheel fenderskirt

Automotive & Cockpit

10.1” Touchscreen Dash Radio with Bluetooth®, Apple CarPlay®/Android Auto™ & Sirius/XM® Prep
Chrome Heated/Power Mirrors with Integrated Side View Cameras
Blind Spot Detection
Back-Up Monitor
Cruise Control
Tilt/Telescoping Steering Column
Air Horns
Power Solar and Privacy Shades on Windshield
Manual Solar and Privacy Shades on Side Windows
Driver and Passenger Overhead Storage Cabinetry
Wireless Phone Charger w/USB Plugs in Co-Pilot Cabinet Top
Map Lights
Dash Fans
Drink Holders
Electric Step Cover
Emergency Engine Start Switch
Generator Start Switch on Dash
Three-Point Seat Belts for Driver and Passenger
Leatherette Reclining/Swivel Adjustable Captain's Chairs (Passenger Seat has Electric Footrest)
Power Drop-Down Hide-Away Overhead Bunk with Cotton Cloud™ Mattress
Fog Lights

Interior

84” Interior Ceiling Height
Polished Porcelain Tile Flooring
Solid Surface Entry Steps
Metal Entry Grab Handle
Fire Extinguisher
Smoke, LPG & Carbon Monoxide Detectors
Ceiling Ducted Whisper Air™ Central Cooling System
Hardwood Veneer Paneling in Select Areas
Wyndham Cabinetry with “Rake” Style Cabinet Doors & Nickel Finish Hardware
Asheville 2-Tone Cabinetry with "Bristol" Style Cabinet Doors & Chrome Finish Hardware (Optional)
Full Extension Metal Ball-Bearing Soft Closing Drawer Guides
LED Lighting
Living Room Pin-Up Lights
Soft Vinyl Ceiling
Leatherette Power Reclining Home Theater Seating with Footrests, UBS Charging Ports & Stainless Steel Cup Holders
Leatherette Dream Dinette® Booth with (4) Seatbelts
Dual Child Safety Tether in Dinette
Wireless Phone Charger w/USB Plug in Dinette Table Top *Components/Features Available on Motorhomes Built After 10-01-2024*
Passenger Seat Belts in Select Areas
Lambrequin Window Treatments
Window Solar & Privacy Roller Shades

Kitchen

21.4 cu-ft. Double Door Residential Refrigerator w/In-Door Water and Ice Dispenser
2-Burner Electric Induction Cooktop
Stainless Steel Over-the-Range Convection Microwave Oven
Solid Surface Countertops & Dinette
Pop-Up Wireless Phone Charger w/110v Outlets and USB Plugs in Kitchen Top
Wireless Phone Charger w/USB Plug in Dinette Table Top
Large Double Bowl Stainless Steel Sink with Single Handle Faucet & Pull-Down Sprayer and Solid Surface Sink Covers
Designer Tile Backsplash
Window Privacy Roller Shade
12V ”High Capacity” Power Vent w/Cover

Bedroom & Bathroom

King Size Bed with Tilt-A-View™ Inclining Bed Mechanism
Bedroom 110V Outlet on Inverted Circuit for CPAP Machine
USB Charging Ports in Bed Base
Designer Headboard, Bedspread & Pillow Shams
Foot Flush Porcelain Toilet
Power Vent in Bathroom (s) with Cover
Designer Tile Backsplash
Oversized Full Height Fiberglass Shower with Glass Door
Oxygenics® Shower Head
Skylight in Shower

Entertainment

Winegard® ConnecT™ 2.0 WiFi Extender + 4G & TV Antenna
50” LED SMART TV in Living Area
43” LED SMART HDTV & 55” LED SMART HDTV in Living Area (Model Specific)
32” LED SMART TV in Bedroom
32” LED SMART TV in Cockpit Overhead
Exterior 40” LED TV on Swivel Bracket with Soundbar with Bluetooth®
Cable TV & HDMI Video Distribution Ready
Soundbar with Bluetooth
Satellite Mounting Backer in Roof

Electrical & Plumbing

Onan® RV QD 8000 Diesel Generator
50-amp Shoreline Power Cord
12v Electric Power Cord Reel
Automatic Transfer Switch w/Power Protection
Automatic Generator Start
Energy Management System
Battery Disconnect Switch
Four (4) Auxiliary House Batteries
RapidCamp+® Multiplex Wiring Control System with 7” Screen, WiFi-App-Enabled & SurgeGuard® Electrical Protection
100-watt Solar Charging System with Control through Main Multiplex Control Panel
400-watt Additional Solar Charging System (Total of 500 watts) (Optional)
2000-watt Pure Sine Inverter/100-amp Converter
Dual 15,000 BTU Mid-Profile Ducted Air Conditioners with Heat Pump in LR
Stacking Washer & Dryer Install
Aqua-Hot® 250D Hydronic Furnace & Water Heating System w/Multiplex Control *Components/Features Available on Motorhomes Built After 10-01-2024*
Exterior GFCI Recept
Whole Coach Water Filtration System
Enclosed & Heated Holding Tanks
Black Tank Flush System
Outside Shower
360 Siphon® RV Holding Tank Vent Cap

See us for a complete list of features and available options!

All standard features and specifications are subject to change.

All warranty info is typically reserved for new units and is subject to specific terms and conditions. See us for more details.

Due to the current environment, our features and options are subject to change due to material availability.

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We went several times to just look and each time Jet the sales gal was just amazing. She helped us called us did everything she could to help us find the right RV for us! And she did! Also the finance dept Shawn was fantastic! Just a great group of folks that work there! They've not been in business ... More »

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terrific company
The staff was wonderful. They were professional, extremely helpful, very friendly and I was treated with respect. I didn't feel any pressure to buy and they took me through several RV's according to my specifications. I would not go anywhere else should I need to purchase another RV. The customer ... More »

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Highly recommend this locally owned business!

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Airstream Of Chicago is not responsible for any misprints, typos, or errors found in our website pages. Any price listed excludes sales tax, registration tags, and delivery fees. Manufacturer-provided pictures, specifications and features may be used as needed. Inventory shown may be only a partial listing of the entire inventory. Please contact us at 815-726-1900 for availability as our inventory changes rapidly. All calculated payments are an estimate only and do not constitute a commitment that financing or a specific interest rate or term is available.

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