CamperHardlyKnowHer

Thor Motor Coach Siesta 24SJ

Class Cbuilt 2018–19Mixed 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
Length25.7 ft
Height (incl. A/C)10.8 ft
Width7.5 ft
Interior height6.7 ft
GVWR11,030 lb
Dry weightnot published
Sleeps5
Fuel26.4 gal
Engine / chassisMercedes 3.0L V6 BlueTEC 188 HP on Sprinter 3500

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

WHERE PEOPLE SLEEP
  • 1× Rear bed(Permanent)—
  • 1× Cab-over bunk(Permanent)—
HOW IT'S BUILT — 3/5
WallsLaminated fiberglass
FrameSteel
RoofWalk-on
UnderbellyOpen

Thor Motor Coach (Mixed tier): Thor Industries

YEAR BY YEAR — WHAT CHANGED
  • 2018First appears in dealer catalogues
  • 2020Not carried into the final model year
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.

THE READ

Late-run plan that appears in dealer catalogues for 2018-2019 but never in a Thor spec sheet I could recover - length, tanks and sleeps are carried from the sister plans on the same Sprinter shell. Verify against the door sticker.

OTHER SIESTA FLOORPLANS
24MB · 11,030 lb · sleeps 524SA · 11,030 lb · sleeps 524SB · 11,030 lb · sleeps 524SK · 11,030 lb · sleeps 524SR · 11,030 lb · sleeps 524SS · 11,030 lb · sleeps 524ST · 11,030 lb · sleeps 524SV · 11,030 lb · sleeps 5the whole line →
Is the 24SJ 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 low-confidence record — figures are inferred and should be independently verified, retrieved 2026-07.