CamperHardlyKnowHer

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 $299,400.

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
  • 1× King bed with Tilt-A-View inclining mechanism(Permanent)72×80
  • 1× Power drop-down hide-away overhead cockpit bunk(Stow-away)48×74
  • 1× Driver-side leatherette sofa bed (optional)(Convertible)—
  • 1× 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.

THE READ

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
3401 · 32,400 lb · sleeps 43601 · 35,320 lb · sleeps 63701 · 35,320 lb · sleeps 63901 · 35,320 lb · sleeps 63902 · 35,320 lb · sleeps 64000 · 35,320 lb · sleeps 8the whole 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 and watch the whole market re-rank around them. Nothing gets hidden, everything gets explained.

Rank it against your setup →

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