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New 2026 Thor Motor Coach Aria 3901

Motor Home Class A - Diesel

Stock #21169498

Tucson, AZ

1 of 2

Sale Price: $334,995
MSRP: $423,332
Save: $88,337

Sleeps 7
3 Slides
Bunk Over Cab

Bath and a Half

40ft Long
28,930 lbs

See All Specs

Specifications

Sleeps	7	Slides	3
Length	40 ft	Ext Width	8 ft 5 in
Ext Height	12 ft 6 in	Int Height	7 ft
Hitch Weight	10000 lbs	GVWR	35320 lbs
Dry Weight	28930 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
Fuel Type	DIESEL	Miles	1966
Engine	360HP Cummins	Chassis	Freightliner
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

Convenience, comfort, and space can be found throughout this coach with a rear full bathroom with dual sinks and a mid-coach half bath, plus three slide outs, and captain's chairs that swivel. You can entertain your family and friends with all the seating and seatbelts that allow you to invite everyone. The Dream dinette, tri-fold sofa, and reclining theater seats are all great places to relax, unwind, and visit. Everyone will surely enjoy the fireplace and the two LED TVs in the living room. Cooking is made easy with a convection microwave oven and electric induction cooktop, plus there is a 21.4 double door residential refrigerator and a pantry for food storage. When you are ready to call it a night, the Tilt-A-View inclining king bed will be waiting in the walk-through bedroom that leads you to the full bathroom!

With any Aria Class A diesel motorhome by Thor Motor Coach, experience RV living with all the luxurious amenities you are accustom to, command the roadways with improved handling from the VFS front axle with a 55-degree wheel cut, and enjoy a smooth ride thanks to the Air-Ride suspension and Sachs shock absorbers. The driver will also appreciate the 10.1" touchscreen dash radio with Bluetooth, and Sirius/XM prep when navigating the roads, and the comfort of the leatherette reclining/swivel adjustable captain's chairs. The bathroom provides an oversized full height shower with a glass door and a designer backsplash, while the kitchen provides solid surface countertops and a dinette. You'll also enjoy designer tile backsplash, a large double bowl stainless steel sink with a single handle faucet, a pull-down sprayer, plus full kitchen amenities. More standout features include the Wyndham cabinetry with rake style cabinet doors & nickel finish hardware, plus much much more depending on the Aria you take on the road!

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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†Lazydays strives to ensure the accuracy of the information provided on this website. However, actual products, programs and services may differ materially from those on this site. Lazydays is not responsible for errors made in stated pricing. Specifications and availability subject to change without notice. Sale price includes all manufacturer discounts and rebates. All prices listed on this site exclude tax, tags and title. Prices for inventory located in Arizona do not include Document/Dealer Fee of $699 for motorized units or $349 for towables. Prices for inventory located in Minnesota does not include Document Fee of $100 for motorized and towable units. Contact Lazydays for complete details.

**Lazydays believes the specifications on this site supplied by the manufacturer to be correct at the time posted. However, specifications, standard equipment, model availability, options, fabrics, and colors are subject to change without notice. Some equipment may be unavailable when a vehicle is built. Some vehicles are pictured with options, which may be available at extra cost or may not be available on some models. You should verify the equipment that is on all vehicles.

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.

New 2026 Thor Motor Coach Aria 3901

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New 2026 Thor Motor Coach Aria 3901

3901 Floorplan

Specifications

Description

Features

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