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Keystone Arcadia 3940LT

Fifth wheelbuilt 2022–23Mixed build tierFindable on the used market
WHAT ONE COSTS
$57,500est. used (2023, 3 yr old)

Sticker was $92,782 in 2023. Out of production since 2023, so the used market is the only way to buy one. Estimate assumes a 2023 unit.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~13,630 lbestimated as towed, for 2 people

dry weight 12,380 lb + fresh water (54 gal, full) 450 lb + propane + battery 200 lb + gear for 2 600 lb. Brochure dry weight omits water, propane, batteries and your gear; this estimate doesn't.

You want a tow rating around15,145 lb (10% margin)
GVWR (the sticker maximum)13,820 lb
Tongue weight, loaded~2,004 lb (15%: low, watch for sway)
Cargo capacity1,440 lb
WHICH TOW VEHICLES IT FITS: 19 OF 95

Judged the way the app judges: estimated loaded weight against each vehicle's rating less a 10% margin, per model year, because the 3940LT's published weights held steady. Fifth wheels also need a pickup bed and are held to the fifth-wheel rating where published.

VEHICLETOW RATINGVERDICT
Chevrolet Silverado / GMC Sierra 2500HD (Duramax, max tow) '24-2622,500 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '20-2318,510 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-1918,100 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '20-2636,000 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '11-1923,300 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel, gooseneck) '20-2222,800 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-1918,000 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel) '11-1616,600 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 HO diesel, gooseneck) '23-2623,000 lbfits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '17-1932,500 lbfits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '20-2237,000 lbfits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '11-1621,600 lbfits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 HO diesel DRW, gooseneck) '23-2638,000 lbfits, loaded, with 10% margin
Ford F-450 Super Duty (6.7 HO diesel DRW, gooseneck) '23-2640,000 lbfits, loaded, with 10% margin
Ram 2500 (6.7 Cummins HO) '19-2620,000 lbfits, loaded, with 10% margin
Ram 2500 (6.7 Cummins) '11-1817,980 lbfits, loaded, with 10% margin
Ram 3500 (6.7 Cummins DRW, gooseneck) '13-1831,210 lbfits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '25-2636,610 lbfits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '19-2437,090 lbfits, loaded, with 10% margin
The 76it doesn't fit

These verdicts assume 2 people aboard with typical gear. See the margin for your truck and your crew →

THE SPECS
Length39.6 ft
Height (incl. A/C)13.3 ft
Width8.0 ft
GVWR13,820 lb
Dry weight12,380 lb
Dry tongue weight1,820 lb
Cargo capacity1,440 lb
Sleeps6
Slide-outs3
Axles2
Fresh water54 gal
Grey water88 gal
Black water88 gal
Air conditioning15,000 BTU
Solar (standard)200 W

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

WHERE PEOPLE SLEEP
  • 1× front bedroom queen bed(Permanent)60×80
  • 1× loft full bed(Permanent)54×74
  • 1× sleeper sofa(Convertible)—
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Keystone (Mixed tier): Keystone RV

YEAR BY YEAR: WHAT CHANGED
  • 2022Introduced
  • 2023Discontinued
FINDING ONE

Findable: a few listed nationwide most weeks. Why: Keystone is a volume manufacturer; only 2 model years. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Center living with a bunk room, loft and 1.5 baths. GVWR derived from dry plus published cargo capacity.

OTHER ARCADIA FLOORPLANS
21SRK · 8,500 lb · sleeps 6242SLMD · 9,900 lb · sleeps 5246SLRK · 9,900 lb · sleeps 4248SLRE · 10,000 lb · sleeps 424SRE · 9,500 lb · sleeps 6253SLRD · 10,100 lb · sleeps 425SRD · 9,900 lb · sleeps 5260SLCL · 11,000 lb · sleeps 427SBH · 9,500 lb · sleeps 8288SLBH · 11,000 lb · sleeps 828SLS · 9,500 lb · sleeps 4292SLRL · 11,000 lb · sleeps 6293SLRD · 10,240 lb · sleeps 4294SLRD · 11,000 lb · sleeps 5the whole line →
Find one for sale

Live listings for the 3940LT 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 Arcadia line ↗

Is the 3940LT 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 dealer and aggregator listings, retrieved 2026-07.