Keystone Fuzion 429
Fifth wheelbuilt 2018–25Mixed build tierCommon on the used market
WHAT ONE COSTS
$104,700est. used (2025, 1 yr old)
Sticker was $142,583 in 2024. Out of production since 2025, so the used market is the only way to buy one. Estimate assumes a 2025 unit.
WHAT IT WEIGHS BEHIND YOUR TRUCK
~17,602 lbestimated as towed, for 2 people
dry weight 16,018 lb + fresh water (94 gal, full) 784 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 around19,560 lb (10% margin)
GVWR (the sticker maximum)20,000 lb
Tongue weight, loaded~3,907 lb (22%)
Cargo capacity3,982 lb
WHICH TOW VEHICLES IT FITS: 14 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 429's published weights held steady. Fifth wheels also need a pickup bed and are held to the fifth-wheel rating where published.
The 81it doesn't fit
- Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26: over by ~10,672 lb loaded
- Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22: over by ~10,672 lb loaded
- Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26: over by ~8,332 lb loaded
- Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '20-23: over by ~942 lb loaded
- Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-19: over by ~1,312 lb loaded
- Chevrolet Silverado 1500 (max tow) '14-18: over by ~7,162 lb loaded
- Chevrolet Silverado EV (4WT) '24-26: over by ~6,352 lb loaded
- Chevrolet Suburban (5.3 V8, max tow) '21-26: no pickup bed (cannot hitch a fifth wheel)
- Chevrolet Tahoe (5.3 V8, max tow) '21-26: no pickup bed (cannot hitch a fifth wheel)
- Chevrolet Traverse (tow pkg) '18-26: no pickup bed (cannot hitch a fifth wheel)
- Chrysler Pacifica '17-26: no pickup bed (cannot hitch a fifth wheel)
- Dodge Durango (5.7 / 6.4 Hemi, tow pkg) '14-26: no pickup bed (cannot hitch a fifth wheel)
- Ford Bronco 4-dr (2.7 EcoBoost, tow pkg) '21-26: no pickup bed (cannot hitch a fifth wheel)
- Ford Expedition (3.5 EcoBoost, tow pkg) '25-26: no pickup bed (cannot hitch a fifth wheel)
- Ford Expedition (3.5 EcoBoost, tow pkg) '18-24: no pickup bed (cannot hitch a fifth wheel)
- Ford Explorer (3.0 EcoBoost, tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
- Ford F-150 (3.5 EcoBoost, max tow) '24-26: over by ~7,882 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '15-20: over by ~6,892 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '21-23: over by ~5,002 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '11-14: over by ~7,432 lb loaded
- Ford F-150 Lightning (max trailer tow) '22-26: over by ~8,602 lb loaded
- Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-19: over by ~1,402 lb loaded
- Ford F-250 Super Duty (6.7 diesel) '11-16: over by ~2,662 lb loaded
- Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26: over by ~14,002 lb loaded
- Ford Ranger (2.3 EcoBoost, tow pkg) '19-23: over by ~10,852 lb loaded
- Ford Ranger (2.7 EcoBoost, tow pkg) '24-26: over by ~10,852 lb loaded
- Ford Transit (HD tow pkg) '15-26: no pickup bed (cannot hitch a fifth wheel)
- GMC Acadia (tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
- GMC Hummer EV Pickup '22-26: over by ~10,852 lb loaded
- GMC Sierra EV '24-26: over by ~6,802 lb loaded
- GMC Yukon / Yukon XL (5.3 V8, max tow) '21-26: no pickup bed (cannot hitch a fifth wheel)
- Honda Odyssey '18-26: no pickup bed (cannot hitch a fifth wheel)
- Honda Passport (AWD) '19-26: no pickup bed (cannot hitch a fifth wheel)
- Honda Pilot (AWD, tow pkg) '16-26: no pickup bed (cannot hitch a fifth wheel)
- Honda Ridgeline (AWD) '17-26: over by ~13,102 lb loaded
- Hyundai Palisade (tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
- Hyundai Santa Cruz (2.5T AWD) '22-26: over by ~13,102 lb loaded
- Jeep Gladiator (3.6 V6, max tow) '20-26: over by ~10,672 lb loaded
- Jeep Grand Cherokee (5.7 Hemi) '11-21: no pickup bed (cannot hitch a fifth wheel)
- Jeep Grand Cherokee (WL, tow pkg) '22-26: no pickup bed (cannot hitch a fifth wheel)
- Jeep Grand Cherokee L (5.7 Hemi) '21-26: no pickup bed (cannot hitch a fifth wheel)
- Jeep Grand Wagoneer (Hurricane, max tow) '22-26: no pickup bed (cannot hitch a fifth wheel)
- Jeep Wagoneer (Hurricane, max tow) '22-26: no pickup bed (cannot hitch a fifth wheel)
- Jeep Wrangler Unlimited 4-dr (tow pkg) '18-26: no pickup bed (cannot hitch a fifth wheel)
- Kia Telluride (tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
- Land Rover Defender '20-26: no pickup bed (cannot hitch a fifth wheel)
- Land Rover Discovery '17-26: no pickup bed (cannot hitch a fifth wheel)
- Lexus GX 550 (tow pkg) '24-26: no pickup bed (cannot hitch a fifth wheel)
- Lexus LX 600 '22-26: no pickup bed (cannot hitch a fifth wheel)
- Mazda CX-90 (3.3 turbo, tow pkg) '24-26: no pickup bed (cannot hitch a fifth wheel)
- Mercedes-Benz Sprinter '19-26: no pickup bed (cannot hitch a fifth wheel)
- Nissan Armada (3.5 twin-turbo, tow pkg) '25-26: no pickup bed (cannot hitch a fifth wheel)
- Nissan Armada (tow pkg) '17-24: no pickup bed (cannot hitch a fifth wheel)
- Nissan Frontier (3.8 V6, tow pkg) '22-26: over by ~11,167 lb loaded
- Nissan Pathfinder (tow pkg) '22-26: no pickup bed (cannot hitch a fifth wheel)
- Nissan Titan (5.6 V8, tow pkg) '17-24: over by ~8,817 lb loaded
- Nissan Titan XD (Cummins diesel) '16-19: over by ~6,162 lb loaded
- Ram 1500 (3.0 Hurricane, max tow) '25-26: over by ~7,152 lb loaded
- Ram 1500 (5.7 Hemi eTorque, max tow) '19-24: over by ~6,127 lb loaded
- Ram 1500 (5.7 Hemi, max tow) '11-18: over by ~8,042 lb loaded
- Ram 2500 (6.7 Cummins) '11-18: over by ~1,422 lb loaded
- Ram ProMaster '14-26: no pickup bed (cannot hitch a fifth wheel)
- Rivian R1S '22-26: no pickup bed (cannot hitch a fifth wheel)
- Rivian R1T '22-26: over by ~7,702 lb loaded
- Subaru Ascent '19-26: no pickup bed (cannot hitch a fifth wheel)
- Subaru Outback (XT / Wilderness) '20-26: no pickup bed (cannot hitch a fifth wheel)
- Tesla Cybertruck '24-26: over by ~7,702 lb loaded
- Tesla Model X (tow pkg) '16-26: no pickup bed (cannot hitch a fifth wheel)
- Tesla Model Y (tow pkg) '21-26: no pickup bed (cannot hitch a fifth wheel)
- Toyota 4Runner (4.0 V6) '11-24: no pickup bed (cannot hitch a fifth wheel)
- Toyota 4Runner (i-Force Max) '25-26: no pickup bed (cannot hitch a fifth wheel)
- Toyota Grand Highlander (i-Force Max) '24-26: no pickup bed (cannot hitch a fifth wheel)
- Toyota Highlander (tow pkg) '20-26: no pickup bed (cannot hitch a fifth wheel)
- Toyota Land Cruiser (i-Force Max) '24-26: no pickup bed (cannot hitch a fifth wheel)
- Toyota Sequoia (i-Force Max, tow pkg) '23-26: no pickup bed (cannot hitch a fifth wheel)
- Toyota Sienna '21-26: no pickup bed (cannot hitch a fifth wheel)
- Toyota Tacoma (i-Force Max, tow pkg) '24-26: over by ~11,752 lb loaded
- Toyota Tacoma (V6, tow pkg) '16-23: over by ~11,482 lb loaded
- Toyota Tundra (5.7 V8, tow pkg) '11-21: over by ~8,422 lb loaded
- Toyota Tundra (i-Force Max, tow pkg) '22-26: over by ~6,802 lb loaded
- Volkswagen Atlas (tow pkg) '18-26: no pickup bed (cannot hitch a fifth wheel)
These verdicts assume 2 people aboard with typical gear. See the margin for your truck and your crew →
THE SPECS
Length44.9 ft
Height (incl. A/C)13.4 ft
Width8.3 ft
GVWR20,000 lb
Dry weight16,018 lb
Dry tongue weight3,555 lb
Cargo capacity3,982 lb
Sleeps8
Axles3
Fresh water94 gal
Grey water88 gal
Black water88 gal
Awning14 ft
A missing row means the maker never published that figure: unknown, not zero.
WHERE PEOPLE SLEEP
- 1× Front king bed suite(Permanent)—
- 2× Garage electric beds(Stow-away)—
- 2× Garage 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
- 2018Offered in the 2018 model year (aggregator listings)
- 2024Rebuilt on the current 20,000 lb chassis at 16,018 lb
- 2025Final year
FINDING ONE
Common: usually several for sale within a day’s drive. Why: Keystone is a volume manufacturer; 8-year production run. Estimated from build volume and production span, not a count of live listings.
OUR TAKE
Long-running triple-axle Fuzion, one of the few plan numbers to survive from the 2018 era into the 2020s.
OTHER FUZION FLOORPLANS
3120 · 16,670 lb · sleeps 8337 · 16,900 lb · sleeps 83423 · 16,745 lb · sleeps 8343 · 16,900 lb · sleeps 8359 · 16,880 lb · sleeps 8361LT · 15,800 lb · sleeps 8367 · 16,615 lb · sleeps 8369 · 17,000 lb · sleeps 8373 · 19,745 lb · sleeps 8379 · 17,000 lb · sleeps 8415 · 19,000 lb · sleeps 8418 · 18,362 lb · sleeps 8419 · 21,000 lb · sleeps 8421 · 20,000 lb · sleeps 8the whole line →
Find one for sale
Live listings for the 429 on the big marketplaces. Each search opens pre-filled with this exact floorplan:
Inventory varies by site and day. Slim pickings? search the whole Fuzion line ↗
Is the 429 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.