CamperResearchFind your rig →

Keystone Impact 303

Fifth wheelbuilt 2016–17Mixed build tierFindable on the used market
WHAT ONE COSTS
$40,800est. used (2017, 9 yr old)

Sticker was $73,061 in 2017. Out of production since 2017, so the used market is the only way to buy one. Estimate assumes a 2017 unit.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~10,740 lbestimated as towed, for 2 people

dry weight 9,073 lb + fresh water (104 gal, full) 867 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 around11,935 lb (10% margin)
GVWR (the sticker maximum)13,000 lb
Tongue weight, loaded~1,616 lb (15%)
Cargo capacity3,927 lb
WHICH TOW VEHICLES IT FITS: 26 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 303's published weights changed mid-run. 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
Chevrolet Silverado EV (4WT) '24-2612,500 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '15-2013,200 lb2016 model years fit
Ford F-150 (3.5 EcoBoost, max tow) '21-2314,000 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
GMC Sierra EV '24-2612,000 lbfits, loaded, with 10% margin
Nissan Titan XD (Cummins diesel) '16-1912,710 lbfits, loaded, with 10% margin
Ram 1500 (5.7 Hemi eTorque, max tow) '19-2412,750 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
Toyota Tundra (i-Force Max, tow pkg) '22-2612,000 lbfits, loaded, with 10% margin
The 69it doesn't fit

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

THE SPECS
Length34.7 ft
Height (incl. A/C)12.2 ft
Width8.3 ft
GVWR13,000 lb
Dry weight9,073 lb
Dry tongue weight1,365 lb
Cargo capacity3,927 lb
Sleeps5
Slide-outs2
Axles2
Fresh water104 gal
Grey water60 gal
Black water30 gal
Air conditioning15,000 BTU

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

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

Keystone (Mixed tier): Impact / Fuzion Impact Edition

YEAR BY YEAR: WHAT CHANGED
YEARSGVWRDRYMSRP
201613,000 lb8,981 lb$73,061
201713,000 lb9,073 lb$73,061
  • 2016Introduced
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

Two-slide TT toy hauler with a bigger grey tank than the 300.

OTHER IMPACT FLOORPLANS
25V · 9,800 lb · sleeps 4260 · 11,250 lb · sleeps 626V · 9,770 lb · sleeps 42813 · 11,000 lb · sleeps 628V · 10,000 lb · sleeps 62915 · 11,300 lb · sleeps 629V · 10,000 lb · sleeps 6300 · 13,000 lb · sleeps 6301 · 13,000 lb · sleeps 6311 · 16,450 lb · sleeps 53118 · 12,500 lb · sleeps 4312 · 13,000 lb · sleeps 5317 · 13,000 lb · sleeps 53216 · 14,000 lb · sleeps 5the whole line →
Find one for sale

Live listings for the 303 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 Impact line ↗

Is the 303 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.