CamperHardlyKnowHer

Thor Motor Coach Sequence 20A

Class B vanbuilt 2020–25Mixed build tierCommon 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
Length21.1 ft
Height (incl. A/C)9.4 ft
Width6.8 ft
Interior height6.3 ft
GVWR9,350 lb
Dry weightnot published
Sleeps2
Slide-outs0
Fresh water27 gal
Grey water20 gal
Black water4.8 gal
Air conditioning11,000 BTU
Awning12 ft
Fuel24 gal
Engine / chassis3.6L Pentastar V6 gas 276 HP on RAM ProMaster 3500
Generator2,800 W gas

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

WHERE PEOPLE SLEEP
  • 1× Expanding sleeper sofa(Convertible)72×66
  • 1× Optional Sky Bunk retractable roof sleeping area(Stow-away)—
HOW IT'S BUILT — 3/5
WallsAluminum / metal van
FrameSteel
RoofStandard
UnderbellyOpen

Thor Motor Coach (Mixed tier): Thor Industries

YEAR BY YEAR — WHAT CHANGED
  • 2020Introduced with the line
  • 2022Exterior length restated 20 ft 11 in to 21 ft 1 in
  • 2026Dropped from the lineup
FINDING ONE

Common — usually several for sale within a day’s drive. Why: Thor Motor Coach is a volume manufacturer; an uncommon body style. Estimated from build volume and production span — not a count of live listings.

THE READ

Sofa-sleeper plan with a 72x66 in bed - the widest sleeping surface in the line. Cassette-style black tank.

OTHER SEQUENCE FLOORPLANS
20H · 9,350 lb · sleeps 320J · 9,350 lb · sleeps 220K · 9,350 lb · sleeps 220L · 9,350 lb · sleeps 220U · 9,350 lb · sleeps 220Y · 9,350 lb · sleeps 2the whole line →
Is the 20A 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.