CamperHardlyKnowHer

Heartland Bighorn 39RK

Fifth wheelbuilt 2026– (in production)Mixed build tierFindable on the used market
WHAT ONE COSTS
$134,200MSRP today

Still in production — a used 2023 would run roughly $92,600.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~16,626 lbestimated as towed, for 2 people

dry weight 15,200 lb + fresh water (75 gal, full) 626 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 around18,475 lb (10% margin)
GVWR (the sticker maximum)18,200 lb
Tongue weight, loaded~3,238 lb (19%)
Cargo capacity3,000 lb
WHICH TOW VEHICLES IT FITS — 15 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 39RK'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 3500HD (Duramax DRW, gooseneck) '11-1923,300 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '20-2636,000 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 HO diesel, gooseneck) '23-2623,000 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 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 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 3500 (6.7 Cummins DRW, gooseneck) '13-1831,210 lbfits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '19-2437,090 lbfits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '25-2636,610 lbfits, loaded, with 10% margin
The 80it doesn't fit
  • Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26 — over by ~9,696 lb loaded
  • Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22 — over by ~9,696 lb loaded
  • Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26 — over by ~7,356 lb loaded
  • Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-19 — over by ~336 lb loaded
  • Chevrolet Silverado 1500 (max tow) '14-18 — over by ~6,186 lb loaded
  • Chevrolet Silverado EV (4WT) '24-26 — over by ~5,376 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) '11-14 — over by ~6,456 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '15-20 — over by ~5,916 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '21-23 — over by ~4,026 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '24-26 — over by ~6,906 lb loaded
  • Ford F-150 Lightning (max trailer tow) '22-26 — over by ~7,626 lb loaded
  • Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-19 — over by ~426 lb loaded
  • Ford F-250 Super Duty (6.7 diesel) '11-16 — over by ~1,686 lb loaded
  • Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26 — over by ~13,026 lb loaded
  • Ford Ranger (2.3 EcoBoost, tow pkg) '19-23 — over by ~9,876 lb loaded
  • Ford Ranger (2.7 EcoBoost, tow pkg) '24-26 — over by ~9,876 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 ~9,876 lb loaded
  • GMC Sierra EV '24-26 — over by ~5,826 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 ~12,126 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 ~12,126 lb loaded
  • Jeep Gladiator (3.6 V6, max tow) '20-26 — over by ~9,696 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 ~10,191 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 ~7,841 lb loaded
  • Nissan Titan XD (Cummins diesel) '16-19 — over by ~5,186 lb loaded
  • Ram 1500 (3.0 Hurricane, max tow) '25-26 — over by ~6,176 lb loaded
  • Ram 1500 (5.7 Hemi eTorque, max tow) '19-24 — over by ~5,151 lb loaded
  • Ram 1500 (5.7 Hemi, max tow) '11-18 — over by ~7,066 lb loaded
  • Ram 2500 (6.7 Cummins) '11-18 — over by ~446 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 ~6,726 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 ~6,726 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 ~10,776 lb loaded
  • Toyota Tacoma (V6, tow pkg) '16-23 — over by ~10,506 lb loaded
  • Toyota Tundra (5.7 V8, tow pkg) '11-21 — over by ~7,446 lb loaded
  • Toyota Tundra (i-Force Max, tow pkg) '22-26 — over by ~5,826 lb loaded
  • Volkswagen Atlas (tow pkg) '18-26 — no pickup bed — cannot hitch a fifth wheel
THE SPECS
Length43.3 ft
Height (incl. A/C)13.3 ft
Width8.5 ft
Interior height8.6 ft
GVWR18,200 lb
Dry weight15,200 lb
Dry tongue weight2,960 lb
Cargo capacity3,000 lb
Sleeps4
Axles2
Fresh water75 gal
Grey water87 gal
Black water50 gal
Air conditioning15,000 BTU
Solar (standard)400 W

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

WHERE PEOPLE SLEEP
  • 1× Front king bed(Permanent)—
  • 1× Hide-a-bed sofa(Convertible)—
HOW IT'S BUILT — 5/5
WallsAzdel composite
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Heartland (Mixed tier): Bighorn

YEAR BY YEAR — WHAT CHANGED
  • 2026Introduced
FINDING ONE

Findable — a few listed nationwide most weeks. Why: Heartland is a volume manufacturer; only one model year; still in production. Estimated from build volume and production span — not a count of live listings.

THE READ

Biggest rear-kitchen plan; 3,000 lb of cargo capacity.

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 →
Is the 39RK 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 manufacturer spec sheets, retrieved 2026-07.