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Heartland Bighorn 3995FK

Fifth wheelbuilt 2019–21Mixed build tierFindable on the used market
WHAT ONE COSTS
$58,300est. used (2021, 5 yr old)

Sticker was $95,048 in 2021. Out of production since 2021, so the used market is the only way to buy one. Estimate assumes a 2021 unit.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~15,483 lbestimated as towed, for 2 people

dry weight 14,141 lb + fresh water (65 gal, full) 542 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 around17,205 lb (10% margin)
GVWR (the sticker maximum)16,500 lb
Tongue weight, loaded~3,183 lb (21%)
Cargo capacity2,311 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 3995FK'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
Length43.8 ft
Height (incl. A/C)13.3 ft
Width8.0 ft
GVWR16,500 lb
Dry weight14,141 lb
Dry tongue weight2,907 lb
Cargo capacity2,311 lb
Sleeps6
Slide-outs5
Axles2
Fresh water65 gal
Grey water90 gal
Black water90 gal
Air conditioning15,000 BTU

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

WHERE PEOPLE SLEEP
  • 1× Front kitchen king bed(Permanent)—
  • 2× Sofa and dinette(Convertible)—
HOW IT'S BUILT: 5/5
WallsAzdel composite
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Heartland (Mixed tier): Bighorn

YEAR BY YEAR: WHAT CHANGED
  • 2019Introduced
  • 2022Discontinued
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

Five-slide front-kitchen plan.

OTHER BIGHORN FLOORPLANS
3120RK · 16,500 lb · sleeps 43160EL · 15,500 lb · sleeps 431RL · 16,000 lb · sleeps 43215RL · 16,000 lb · sleeps 43300DL · 16,000 lb · sleeps 4331RL · 16,895 lb · sleeps 63375SS · 16,000 lb · sleeps 43575EL · 16,000 lb · sleeps 436RK · 17,300 lb · sleeps 43700RL · 16,500 lb · sleeps 43776RL · 16,845 lb · sleeps 437MD · 18,100 lb · sleeps 83870FB · 16,250 lb · sleeps 43880MD · 16,925 lb · sleeps 4the whole line →
Find one for sale

Live listings for the 3995FK 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 Bighorn line ↗

Is the 3995FK 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.