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Thor Motor Coach Quantum LF31

Class Cbuilt 2016– (in production)Mixed build tierCommon on the used market
WHAT ONE COSTS
$183,700MSRP today

Still in production. A used 2023 would run roughly $108,400.

THE SPECS
Length32.7 ft
Height (incl. A/C)11.2 ft
Width8.3 ft
Interior height7.0 ft
GVWR14,500 lb
Dry weightnot published
Sleeps7
Fresh water40 gal
Grey water28 gal
Black water28 gal
Air conditioning22,000 BTU
Solar (standard)100 W
Awning16 ft
Fuel55 gal
Engine / chassisFord E-450 7.3L V8
Generator4.0 kW gas

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

WHERE PEOPLE SLEEP
  • 1× rear queen bed(Permanent)60×75
  • 2× fold-up bunk beds(Permanent)27×72
  • 1× cab-over bunk(Permanent)52×96
  • 1× jack-knife sofa(Convertible)—
  • 1× dream dinette(Convertible)—
HOW IT'S BUILT: 3/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyOpen

Thor Motor Coach (Mixed tier): Thor Motor Coach

YEAR BY YEAR: WHAT CHANGED
  • 2016Introduced
FINDING ONE

Common: usually several for sale within a day’s drive. Why: Thor Motor Coach is a volume manufacturer; 11-year production run; still in production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

The bunkhouse of the line and the longest-running plan - dual-entry bath, sleeps seven.

OTHER QUANTUM FLOORPLANS
CR24 · 11,030 lb · sleeps 5DS24 · 11,030 lb · sleeps 3GL24 · 12,125 lb · sleeps 4GR22 · 12,500 lb · sleeps 5HS31 · 14,500 lb · sleeps 5JM31 · 14,500 lb · sleeps 5KM24 · 11,030 lb · sleeps 5KW29 · 14,500 lb · sleeps 5LC19 · 11,500 lb · sleeps 3LC21 · 12,500 lb · sleeps 4LC22 · 12,500 lb · sleeps 5LC25 · 12,500 lb · sleeps 5LC26 · 14,500 lb · sleeps 5LC28 · 14,500 lb · sleeps 5the whole line →
Find one for sale

Live listings for the LF31 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 Quantum line ↗

Is the LF31 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 manufacturer spec sheets, retrieved 2026-07.