Heartland Bighorn 37MD
Fifth wheelbuilt 2026– (in production)Mixed build tierFindable on the used market
WHAT ONE COSTS
$136,400MSRP today
Still in production. A used 2023 would run roughly $80,500.
WHAT IT WEIGHS BEHIND YOUR TRUCK
~17,076 lbestimated as towed, for 2 people
dry weight 15,650 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 around18,975 lb (10% margin)
GVWR (the sticker maximum)18,100 lb
Tongue weight, loaded~2,951 lb (17%)
Cargo capacity2,450 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 37MD'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 ~10,146 lb loaded
- Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22: over by ~10,146 lb loaded
- Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26: over by ~7,806 lb loaded
- Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '20-23: over by ~416 lb loaded
- Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-19: over by ~786 lb loaded
- Chevrolet Silverado 1500 (max tow) '14-18: over by ~6,636 lb loaded
- Chevrolet Silverado EV (4WT) '24-26: over by ~5,826 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 ~7,356 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '15-20: over by ~6,366 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '21-23: over by ~4,476 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '11-14: over by ~6,906 lb loaded
- Ford F-150 Lightning (max trailer tow) '22-26: over by ~8,076 lb loaded
- Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-19: over by ~876 lb loaded
- Ford F-250 Super Duty (6.7 diesel) '11-16: over by ~2,136 lb loaded
- Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26: over by ~13,476 lb loaded
- Ford Ranger (2.3 EcoBoost, tow pkg) '19-23: over by ~10,326 lb loaded
- Ford Ranger (2.7 EcoBoost, tow pkg) '24-26: over by ~10,326 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 ~10,326 lb loaded
- GMC Sierra EV '24-26: over by ~6,276 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 ~12,576 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 ~12,576 lb loaded
- Jeep Gladiator (3.6 V6, max tow) '20-26: over by ~10,146 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 ~10,641 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 ~8,291 lb loaded
- Nissan Titan XD (Cummins diesel) '16-19: over by ~5,636 lb loaded
- Ram 1500 (3.0 Hurricane, max tow) '25-26: over by ~6,626 lb loaded
- Ram 1500 (5.7 Hemi eTorque, max tow) '19-24: over by ~5,601 lb loaded
- Ram 1500 (5.7 Hemi, max tow) '11-18: over by ~7,516 lb loaded
- Ram 2500 (6.7 Cummins) '11-18: over by ~896 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 ~7,176 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 ~7,176 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 ~11,226 lb loaded
- Toyota Tacoma (V6, tow pkg) '16-23: over by ~10,956 lb loaded
- Toyota Tundra (5.7 V8, tow pkg) '11-21: over by ~7,896 lb loaded
- Toyota Tundra (i-Force Max, tow pkg) '22-26: over by ~6,276 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
Length42.8 ft
Height (incl. A/C)13.3 ft
Width8.5 ft
Interior height8.5 ft
GVWR18,100 lb
Dry weight15,650 lb
Dry tongue weight2,705 lb
Cargo capacity2,450 lb
Sleeps8
Axles2
Fresh water75 gal
Grey water82.5 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× Mid-bunk bed(Permanent)—
- 1× Hide-a-bed sofa(Convertible)—
- 1× Dinette(Convertible)—
HOW IT'S BUILT: 5/5
WallsAzdel composite
FrameAluminum
RoofWalk-on
UnderbellyEnclosed
Heartland (Mixed tier): Bighorn
YEAR BY YEAR: WHAT CHANGED
- 2026Introduced (successor to the 3880MD/3883MD)
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.
OUR TAKE
Mid-den/mid-bunk plan - the family Bighorn.
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 43870FB · 16,250 lb · sleeps 43880MD · 16,925 lb · sleeps 43883MD · 16,805 lb · sleeps 10the whole line →
Find one for sale
Live listings for the 37MD on the big marketplaces. Each search opens pre-filled with this exact floorplan:
Inventory varies by site and day. Slim pickings? search the whole Bighorn line ↗
Is the 37MD 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.