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Thor Motor Coach Chateau 31B

Class Cbuilt 2021–22Mixed build tierFindable on the used market
WHAT ONE COSTS
$83,700est. used (2022, 4 yr old)

Sticker was $139,650 in 2022. Out of production since 2022, so the used market is the only way to buy one. Estimate assumes a 2022 unit.

THE SPECS
Length32.2 ft
Height (incl. A/C)11.2 ft
Width8.3 ft
Interior height7.0 ft
GVWR14,500 lb
Dry weightnot published
Sleeps6
Fresh water40 gal
Grey water35 gal
Black water31 gal
Awning18 ft
Fuel55 gal
Engine / chassisFord 7.3L V8 on E-Series

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

WHERE PEOPLE SLEEP
  • 1× Rear queen bed(Permanent)60×74
  • 1× 68in jack-knife sofa(Convertible)—
  • 1× 71in Dream Dinette(Convertible)—
  • 1× Cabover bunk(Permanent)54×96
HOW IT'S BUILT: 3/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyOpen

Thor Motor Coach (Mixed tier): Chateau is the badge-swapped twin of Four Winds — identical coach, identical Vacu-Bond/aluminum-cage construction and identical uneven Thor QC record.

YEAR BY YEAR: WHAT CHANGED
  • 2021Introduced
  • 2022Discontinued
FINDING ONE

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

OUR TAKE

219in-wheelbase rear-queen plan offered for only two model years.

OTHER CHATEAU FLOORPLANS
19X · 11,500 lb · sleeps 319Z · 11,500 lb · sleeps 321Z · 12,500 lb · sleeps 422B · 12,500 lb · sleeps 622E · 14,500 lb · sleeps 522Z · 12,500 lb · sleeps 423U · 12,500 lb · sleeps 624F · 12,500 lb · sleeps 625M · 12,500 lb · sleeps 425V · 12,500 lb · sleeps 625Z · 12,500 lb · sleeps 426B · 12,500 lb · sleeps 826X · 14,500 lb · sleeps 627P · 14,500 lb · sleeps 6the whole line →
Find one for sale

Live listings for the 31B on the big marketplaces. Each search opens pre-filled with this exact floorplan:

RV Trader ↗Camping World ↗FB Marketplace ↗Google ↗

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

Is the 31B 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 dealer and aggregator listings, retrieved 2026-07.