CamperHardlyKnowHer

Thor Motor Coach Palazzo 37.4

Class Abuilt 2018– (in production)Mixed build tierCommon on the used market
WHAT ONE COSTS
$342,900MSRP today

Still in production — a used 2023 would run roughly $236,600.

THE SPECS
Length38.9 ft
Height (incl. A/C)12.4 ft
Width8.4 ft
Interior height6.8 ft
GVWR32,350 lb
Dry weightnot published
Sleeps6
Fresh water95 gal
Grey water40 gal
Black water40 gal
Air conditioning27,000 BTU
Solar (standard)500 W
Awning15 ft
Fuel90 gal
Engine / chassisFreightliner XC-S / Cummins 6.7L ISB diesel
GeneratorOnan RV QD 6000 diesel

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

WHERE PEOPLE SLEEP
  • 1× Tilt-A-View inclining king bed(Permanent)72×80
  • 1× drop-down overhead bunk(Stow-away)48×74
  • 1× 68 in tri-fold sofa(Convertible)—
  • 1× 72 in dream dinette(Convertible)—
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Thor Motor Coach (Mixed tier): Thor Motor Coach

YEAR BY YEAR — WHAT CHANGED
YEARSGVWRDRYMSRP
2018–2131,020 lb—$342,860
2022–2432,000 lb—$342,860
2025–32,350 lb—$342,860
  • 2018Introduced
  • 2022GVWR raised to 32,000 lb
  • 2024Renamed Palazzo GT
  • 2025GVWR raised to 32,350 lb
FINDING ONE

Common — usually several for sale within a day’s drive. Why: Thor Motor Coach is a volume manufacturer; 9-year production run; still in production. Estimated from build volume and production span — not a count of live listings.

THE READ

King-bed flagship on the heavy 32,350 lb chassis - the most payload in the line.

OTHER PALAZZO FLOORPLANS
33.1 · 26,000 lb · sleeps 333.2 · 26,000 lb · sleeps 533.3 · 26,000 lb · sleeps 733.4 · 26,000 lb · sleeps 533.5 · 26,000 lb · sleeps 733.6 · 26,000 lb · sleeps 535.1 · 28,000 lb · sleeps 536.1 · 28,000 lb · sleeps 536.2 · 28,000 lb · sleeps 536.3 · 30,500 lb · sleeps 537.5 · 32,350 lb · sleeps 637.6 · 32,000 lb · sleeps 7the whole line →
Is the 37.4 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.