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Thor Motor Coach Aria 3702

Class Abuilt 2025– (in production)Mixed build tierFindable on the used market
WHAT ONE COSTS
$433,900MSRP today

Still in production. A used 2023 would run roughly $256,000.

THE SPECS
Length37.7 ft
Height (incl. A/C)12.5 ft
Width8.4 ft
Interior height7.0 ft
GVWR35,320 lb
Dry weightnot published
Sleeps4
Slide-outs3
Fresh water91 gal
Grey water51 gal
Black water51 gal
Air conditioning43,500 BTU
Solar (standard)100 W
Awning20 ft
Fuel100 gal
Engine / chassisCummins ISB-XT 6.7L 360HP/800 lb-ft, Freightliner XC-R, Allison MH-3000
GeneratorOnan RV QD 8000 diesel

A missing row means the maker never published that figure: unknown, not zero.

WHERE PEOPLE SLEEP
  • King bed with Tilt-A-View inclining mechanism(Permanent)72×80
  • Power drop-down hide-away overhead cockpit bunk(Stow-away)48×74
  • Driver-side leatherette sofa bed (optional)(Convertible)
  • Leatherette Dream Dinette booth(Convertible)
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyEnclosed

Thor Motor Coach (Mixed tier): Thor Aria

YEAR BY YEAR: WHAT CHANGED
  • 2025Introduced
  • 2027MSRP $433,860; 245" wheelbase, 170 cu ft exterior storage
FINDING ONE

Findable: a few listed nationwide most weeks. Why: Thor Motor Coach is a volume manufacturer; only 2 model years; still in production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Two-bathroom couples plan with a fireplace and power theater seating - the half-bath up front is the whole reason people buy it.

OTHER ARIA FLOORPLANS
Find one for sale

Live listings for the 3702 on the big marketplaces. Each search opens pre-filled with this exact floorplan:

Inventory varies by site and day. Slim pickings? search the whole Aria line ↗

Is the 3702 your #1, or just a spec sheet?

These are the facts. Whether it beats the other six thousand rigs for you depends on what you care about. Set your priorities as sliders, switch on your hard limits, and watch the whole market re-rank around them. Every exclusion explained, every margin shown.

See where it ranks for you →

Data compiled from manufacturer spec sheets, retrieved 2026-07.