2026 Thor Motor Coach Aria 3901

New Class A in Montclair, California, 91763

$299,999.00

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New 2026 Thor Motor Coach Aria 3901 available in Montclair, California

2026 Thor Motor Coach Aria 3901 - New Class A For Sale by Giant RV in Montclair, California

2026 Aria 3901 by Thor Motor Coach from Giant RV in Montclair, California

Unit Specs

Stock #TAR141
Year2026
ManufacturerThor Motor Coach
Make Thor Motor Coach
ModelAria
Floorplan3901
Type Class A
ConditionNew
Length39' 11"
VIN4UZACHFC7TCWM4993
MSRP $458,192.00
Sale Price $299,999.00
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ChassisFreightliner
Fuel TypeDiesel
Sleeps6
Water Capacity (Fresh)91 gal
Water Capacity (Black)51 gal
Water Capacity (Grey)51 gal
Slideouts2

Looking to buy a 2026 Thor Motor Coach Aria Class A RV?

2026 Thor Motor Coach Aria 3901

The 2026 Thor Motor Coach Aria 3901 is a luxury Class A diesel motorhome built on a powerful diesel chassis, combining premium comfort, refined design, and robust performance. With a spacious layout, upscale finishes, and thoughtful amenities throughout, this coach is ideal for families or full-time travelers who want high-end living on the road.

Highlights:

Spacious Living & Lounge Area with opposing slide-outs that expand the interior space, including theater seating, sofa, dinette, panoramic windows, and a central entertainment center.
Upscale Kitchen & Dining Features featuring solid-surface countertops, a large island, residential-style refrigerator, three-burner cooktop with oven, microwave, and abundant pantry and cabinet storage.
Private Master Suite & Bath including a comfortable king bed, wardrobe closets, washer/dryer prep, and a full bathroom with a separate shower and linen storage for everyday comfort.

Visit Giant RV in California today to explore the 2026 Thor Motor Coach Aria 3901 — your luxury Class A diesel motorhome built for comfort, style, and unforgettable adventure.

2026 Thor Motor Coach Aria 3901 Features

2026 Thor Motor Coach Aria 3901 Specifications

General

MSRP

$433,860

Dimensions

Height

12' 6"

Height (interior)

7' 0"

Length

39' 11"

Width

8' 5"

Weights

GVWR

35,320 lbs

Capacities

Fuel Capacity

100 gal

Refrigerator Capacity

21 cu ft

Sleep Capacity

Water Capacity - Black

51 gal

Water Capacity - Fresh

91 gal

Water Capacity - Grey

51 gal

Engine/Transmission

Engine Manufacturer

Cummins

Engine Model

ISB-XT 6.7L

Fuel Type

Diesel

Transmission Spec

6 Speed Allison MH-3000 Automatic Transmission

Exterior

# Awnings

# Axles

# Doors

# Slides

Chassis

Freightliner® XC-R Raised Rail Chassis with Atlas™ Foundation

Electrical

# A/C

A/C Spec

15,000 BTU Mid-Profile Ducted Air Conditioners with Heat Pump and 13,500 BTU Mid-Profile Ducted Air Conditioner

*MFG Specs are for the base unit. Certain options may change specifications listed. Please consult dealer for more details. RVUSA.com cannot guarantee the accuracy of the data presented.