CamperHardlyKnowHer

Keystone Fuzion 425

Fifth wheelbuilt 2024–25Mixed build tierFindable on the used market
WHAT ONE COSTS
—price not published

The maker never published an MSRP for this floorplan. Unknown is not cheap — treat any asking price against comparable models, not against zero.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~18,304 lbestimated as towed, for 2 people

dry weight 16,720 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 around20,340 lb (10% margin)
GVWR (the sticker maximum)20,000 lb
Tongue weight, loaded~4,165 lb (23%)
Cargo capacity3,280 lb
WHICH TOW VEHICLES IT FITS — 13 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 425'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 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 HO diesel, gooseneck) '23-2623,000 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) '17-1932,500 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 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 82it doesn't fit
  • Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26 — over by ~11,374 lb loaded
  • Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22 — over by ~11,374 lb loaded
  • Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26 — over by ~9,034 lb loaded
  • Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '20-23 — over by ~1,644 lb loaded
  • Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-19 — over by ~2,014 lb loaded
  • Chevrolet Silverado 1500 (max tow) '14-18 — over by ~7,864 lb loaded
  • Chevrolet Silverado EV (4WT) '24-26 — over by ~7,054 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) '18-24 — 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 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 ~8,584 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '11-14 — over by ~8,134 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '15-20 — over by ~7,594 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '21-23 — over by ~5,704 lb loaded
  • Ford F-150 Lightning (max trailer tow) '22-26 — over by ~9,304 lb loaded
  • Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-19 — over by ~2,104 lb loaded
  • Ford F-250 Super Duty (6.7 diesel) '11-16 — over by ~3,364 lb loaded
  • Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26 — over by ~14,704 lb loaded
  • Ford Ranger (2.3 EcoBoost, tow pkg) '19-23 — over by ~11,554 lb loaded
  • Ford Ranger (2.7 EcoBoost, tow pkg) '24-26 — over by ~11,554 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 ~11,554 lb loaded
  • GMC Sierra EV '24-26 — over by ~7,504 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 ~13,804 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 ~13,804 lb loaded
  • Jeep Gladiator (3.6 V6, max tow) '20-26 — over by ~11,374 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 ~11,869 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 ~9,519 lb loaded
  • Nissan Titan XD (Cummins diesel) '16-19 — over by ~6,864 lb loaded
  • Ram 1500 (3.0 Hurricane, max tow) '25-26 — over by ~7,854 lb loaded
  • Ram 1500 (5.7 Hemi eTorque, max tow) '19-24 — over by ~6,829 lb loaded
  • Ram 1500 (5.7 Hemi, max tow) '11-18 — over by ~8,744 lb loaded
  • Ram 2500 (6.7 Cummins HO) '19-26 — over by ~304 lb loaded
  • Ram 2500 (6.7 Cummins) '11-18 — over by ~2,124 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 ~8,404 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 ~8,404 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 ~12,454 lb loaded
  • Toyota Tacoma (V6, tow pkg) '16-23 — over by ~12,184 lb loaded
  • Toyota Tundra (5.7 V8, tow pkg) '11-21 — over by ~9,124 lb loaded
  • Toyota Tundra (i-Force Max, tow pkg) '22-26 — over by ~7,504 lb loaded
  • Volkswagen Atlas (tow pkg) '18-26 — no pickup bed — cannot hitch a fifth wheel
THE SPECS
Length44.9 ft
Height (incl. A/C)13.4 ft
Width8.3 ft
GVWR20,000 lb
Dry weight16,720 lb
Dry tongue weight3,805 lb
Cargo capacity3,280 lb
Sleeps8
Axles3
Fresh water94 gal
Grey water88 gal
Black water88 gal
Awning18 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
  • 2024Documented in the 2024 brochure
  • 2025Carried over unchanged at 16,720 lb
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.

THE READ

Heaviest 2024 Fuzion, with the largest patio awning of the year at 18 feet.

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 →
Is the 425 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 and watch the whole market re-rank around them. Nothing gets hidden, everything gets explained.

Rank it against your setup →

Data compiled from dealer and aggregator listings, retrieved 2026-07.