2026 Thor Aria 3901
Class A · 39.92 ft · sleeps 6
Floor plan
Photos of the 2026 Thor Aria 3901
Walkthrough video
Video courtesy of RV Tours by RV One on YouTube.
Full specifications
Dimensions
| Length | 39.92 ft |
|---|---|
| Width | 101 in |
| Exterior Height | 12.5 ft |
| Interior Height | 84 in |
| Slide-Outs | 2 |
Weights
| GVWR | 35,320 lbs |
|---|
Drivetrain
| Fuel | Diesel |
|---|---|
| Engine | Cummins® ISB-XT 6.7L |
| Chassis | Freightliner XC-R |
Living
| Sleeps | 6 |
|---|---|
| Bed Configuration | King Bed + Bunks |
| Bath Layout | 2 bath |
| Bunkhouse | Yes |
Tanks
| Fresh Water | 91 gal |
|---|---|
| Grey Water | 51 gal |
| Black Water | 51 gal |
Power & Electrical
| Shore Power | 50 A |
|---|
Amenities
| Outdoor Kitchen | No |
|---|---|
| Theater Seating | Yes |
| Residential Fridge | Yes |
| Fireplace | Yes |
| Four-Season | No |
| Off-Road Capable | No |
Similar Class As to consider
Other class as in the catalog with comparable size and price.
Frequently asked questions
How many people does the 2026 Thor Aria 3901 sleep?
The 2026 Thor Aria 3901 sleeps 6 and has a King Bed + Bunks bed configuration.
How much does the 2026 Thor Aria 3901 cost?
The manufacturer-suggested retail price (MSRP) for the 2026 Thor Aria 3901 is $440,860. Confirm with the manufacturer or dealer for current pricing — actual transaction prices vary.
How long is the 2026 Thor Aria 3901?
The 2026 Thor Aria 3901 is 39.92 feet long and 12.5 feet tall.
Where can I buy the 2026 Thor Aria 3901?
Pirka Wakka is a brand-agnostic catalog and doesn't sell RVs. The "Buy on Thor" link on this page sends you to the manufacturer's product page — they'll route you to an authorized dealer.
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