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Keystone Raptor 353TS

Fifth wheelbuilt 2018–18Mixed build tierPatient search on the used market
WHAT ONE COSTS
$58,900est. used (2018, 8 yr old)

Sticker was $103,105 in 2018. Out of production since 2018, so the used market is the only way to buy one. Estimate assumes a 2018 unit.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~15,567 lbestimated as towed, for 2 people

dry weight 13,850 lb + fresh water (110 gal, full) 917 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 around17,300 lb (10% margin)
GVWR (the sticker maximum)17,000 lb
Tongue weight, loaded~3,597 lb (23%)
Cargo capacity3,150 lb
WHICH TOW VEHICLES IT FITS: 18 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 353TS'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 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 77it doesn't fit

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

THE SPECS
Length39.0 ft
Height (incl. A/C)13.2 ft
Width8.3 ft
GVWR17,000 lb
Dry weight13,850 lb
Dry tongue weight3,200 lb
Cargo capacity3,150 lb
Sleeps7
Axles2
Fresh water110 gal
Grey water82 gal
Black water82 gal
Air conditioning30,000 BTU

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

WHERE PEOPLE SLEEP
  • 1× Front queen bed(Permanent)—
  • 2× Garage electric beds(Stow-away)—
  • 2× Garage dual opposing flip-down sofas(Convertible)—
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Keystone (Mixed tier): Keystone RV

YEAR BY YEAR: WHAT CHANGED
  • 2018Documented in the 2018 model-year brochure
FINDING ONE

Patient search: weeks of watching, and probably some travel. Why: Keystone is a volume manufacturer; only one model year. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Late-2010s tandem-axle Raptor with a 110-gallon fresh tank - much bigger than today's entry plans.

OTHER RAPTOR FLOORPLANS
351 · 17,000 lb · sleeps 7352 · 19,475 lb · sleeps 7355TS · 17,000 lb · sleeps 7362 · 17,000 lb · sleeps 7362TS · 17,000 lb · sleeps 7398TS · 19,000 lb · sleeps 7415 · 21,000 lb · sleeps 7420 · 20,000 lb · sleeps 7421CK · 19,000 lb · sleeps 7424 · 20,000 lb · sleeps 8424TS · 19,000 lb · sleeps 7425TS · 19,000 lb · sleeps 7426TS · 19,000 lb · sleeps 7428 · 20,000 lb · sleeps 7the whole line →
Find one for sale

Live listings for the 353TS 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 Raptor line ↗

Is the 353TS 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.