Line photo: Thor publishes one photo for the Aria line, so it may show another floorplan. Windows and slides can differ from the 3901 described here.

Thor · Class A · 2027

Thor Aria 3901

Thor's luxury diesel pusher, on the Freightliner XCR with a Cummins ISB-XT, in a couples plan built around a dual-vanity ensuite bath. AquaHot hydronic heat, a third ducted A/C, an induction cooktop and an 8 kW diesel generator are standard. At around $458,000 it is the most expensive Thor on the site, and it takes the place the discontinued Tuscany used to hold.

Approx. price: ~$457,660; maker MSRP
Length: 39.9 ft
Sleeps: 6

Specifications

Size

Exterior length: 39.9 ft
Exterior height: 12.5 ft
Sleeps: 6

Tanks and power

Fresh water: 91 gal
Gray water: 51 gal
Black water: 51 gal
Factory solar: 100 W
House battery: Four (4) 6-volt Auxiliary House Batteries
Generator: 50 State 8.0 kW Diesel Generator

Chassis

Chassis: Freightliner XCR
Engine: Cummins® ISB-XT 6.7L (360 HP & 800 lb-ft Torque)
Fuel: Diesel

Standard equipment named by the maker

100-watts Solar Charging System with Control through Main Multiplex Control Panel
2,000-watts Pure Sine Inverter/100-amp Converter
2-Burner Electric Induction Cooktop
3rd 13,500 BTU Mid-Profile Ducted Air Conditioner
50 State 8.0 kW Diesel Generator
AquaHot® 250D Hydronic Furnace & Water Heating System with Multiplex Control
Automatic Generator Start
Automatic Leveling Jacks with Touchpad Controls

Weights

2027 maker figures

GVWR: 35,320 lb
Dry weight (UVW): not published
Occupant + cargo (OCCC): not published
Towing capacity: 10,000 lb

What these weights mean →

Size, to scale

051015202530354045 ft

Thor Aria 3901 · 39.9 ft long · 12′6″ tall

Drawn to one scale from each camper's listed length and, where the maker publishes it, its exterior height. Outlines are typical for the camper type, not traced from this model. The figure is a 6 ft person. The dashed blue line is 25 ft, the length about 93% of national park campgrounds accept.