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Heartland Cyclone 4006

Fifth wheelbuilt 2021–25Mixed build tierFindable on the used market
WHAT ONE COSTS
$120,500est. used (2025, 1 yr old)

Sticker was $167,368 in 2025. 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
~18,511 lbestimated as towed, for 2 people

dry weight 16,460 lb + fresh water (150 gal, full) 1,251 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 around20,570 lb (10% margin)
GVWR (the sticker maximum)21,000 lb
Tongue weight, loaded~3,560 lb (19%)
Cargo capacity4,492 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 4006'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 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) '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 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

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

THE SPECS
Length45.4 ft
Height (incl. A/C)13.3 ft
Width8.4 ft
GVWR21,000 lb
Dry weight16,460 lb
Dry tongue weight3,166 lb
Cargo capacity4,492 lb
Sleeps8
Slide-outs3
Axles3
Fresh water150 gal
Grey water85 gal
Black water91 gal
Air conditioning15,000 BTU

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

WHERE PEOPLE SLEEP
  • 1× Front king bed(Permanent)—
  • 1× Garage drop-down queen(Stow-away)—
  • 2× Garage sofas(Convertible)—
HOW IT'S BUILT: 5/5
WallsAzdel composite
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Heartland (Mixed tier): Cyclone is Heartland's flagship fifth-wheel toy hauler - Azdel-substrate laminated walls, welded tubular aluminum framing, a 12" I-beam steel frame and triple 7,000 lb axles are genuinely heavy-duty, but at this size and weight the QC misses (slides, plumbing, seals) show up often enough to keep it out of the top tier.

YEAR BY YEAR: WHAT CHANGED
YEARSGVWRDRYMSRP
202121,000 lb16,844 lb$122,348
2022–2521,000 lb16,460 lb$167,368
  • 2021Introduced
  • 2026Replaced by the 3913/3914
FINDING ONE

Findable: a few listed nationwide most weeks. Why: Heartland is a volume manufacturer. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Tri-axle 21,000 lb hauler with 4,492 lb of cargo capacity.

OTHER CYCLONE FLOORPLANS
2214 · 11,700 lb · sleeps 42615 · 13,250 lb · sleeps 43413 · 17,000 lb · sleeps 63511 · 17,800 lb · sleeps 63713 · 17,000 lb · sleeps 83714 · 17,638 lb · sleeps 83913 · 21,000 lb · sleeps 83914 · 21,000 lb · sleeps 84005 · 20,000 lb · sleeps 104007 · 21,000 lb · sleeps 84008 · 21,000 lb · sleeps 84014C · 21,000 lb · sleeps 84115 · 20,000 lb · sleeps 84118 · 21,000 lb · sleeps 8the whole line →
Find one for sale

Live listings for the 4006 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 Cyclone line ↗

Is the 4006 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 manufacturer spec sheets, retrieved 2026-07.