Thor Motor Coach Chateau 31Y

Name: Thor Motor Coach Chateau 31Y
Brand: Thor Motor Coach

Class Cbuilt 2018–20Mixed build tierFindable on the used market

WHAT ONE COSTS

—price not published

The maker never published an MSRP for this floorplan. Unknown is not cheap — treat any asking price against comparable models, not against zero.

THE SPECS

Length31.3 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 water28 gal

Black water28 gal

Awning15 ft

Fuel55 gal

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

WHERE PEOPLE SLEEP

1× Rear queen bed(Permanent)60×75
1× 70in jack-knife sofa(Convertible)—
1× 76in 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

2018Introduced
2020Discontinued

FINDING ONE

Findable — a few listed nationwide most weeks. Why: Thor Motor Coach is a volume manufacturer. Estimated from build volume and production span — not a count of live listings.

THE READ

Short-wheelbase 31-footer with rear queen and 70in sofa.

OTHER CHATEAU FLOORPLANS

19X · 11,500 lb · sleeps 3 19Z · 11,500 lb · sleeps 3 21Z · 12,500 lb · sleeps 4 22B · 12,500 lb · sleeps 6 22E · 14,500 lb · sleeps 5 22Z · 12,500 lb · sleeps 4 23U · 12,500 lb · sleeps 6 24F · 12,500 lb · sleeps 6 25M · 12,500 lb · sleeps 4 25V · 12,500 lb · sleeps 6 25Z · 12,500 lb · sleeps 4 26B · 12,500 lb · sleeps 8 26X · 14,500 lb · sleeps 6 27P · 14,500 lb · sleeps 6 the whole line →

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