CamperHardlyKnowHer

Heartland Landmark Key West

Fifth wheelbuilt 2015–17Better 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
~16,571 lbestimated as towed, for 2 people

dry weight 15,104 lb + fresh water (80 gal, full) 667 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 around18,415 lb (10% margin)
GVWR (the sticker maximum)18,000 lb
Tongue weight, loaded~3,725 lb (22%)
Cargo capacity2,896 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 Key West'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) '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 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) '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 80it doesn't fit
  • Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26 — over by ~9,641 lb loaded
  • Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22 — over by ~9,641 lb loaded
  • Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26 — over by ~7,301 lb loaded
  • Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-19 — over by ~281 lb loaded
  • Chevrolet Silverado 1500 (max tow) '14-18 — over by ~6,131 lb loaded
  • Chevrolet Silverado EV (4WT) '24-26 — over by ~5,321 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 ~6,851 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '11-14 — over by ~6,401 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '15-20 — over by ~5,861 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '21-23 — over by ~3,971 lb loaded
  • Ford F-150 Lightning (max trailer tow) '22-26 — over by ~7,571 lb loaded
  • Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-19 — over by ~371 lb loaded
  • Ford F-250 Super Duty (6.7 diesel) '11-16 — over by ~1,631 lb loaded
  • Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26 — over by ~12,971 lb loaded
  • Ford Ranger (2.3 EcoBoost, tow pkg) '19-23 — over by ~9,821 lb loaded
  • Ford Ranger (2.7 EcoBoost, tow pkg) '24-26 — over by ~9,821 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 ~9,821 lb loaded
  • GMC Sierra EV '24-26 — over by ~5,771 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 ~12,071 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 ~12,071 lb loaded
  • Jeep Gladiator (3.6 V6, max tow) '20-26 — over by ~9,641 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 ~10,136 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 ~7,786 lb loaded
  • Nissan Titan XD (Cummins diesel) '16-19 — over by ~5,131 lb loaded
  • Ram 1500 (3.0 Hurricane, max tow) '25-26 — over by ~6,121 lb loaded
  • Ram 1500 (5.7 Hemi eTorque, max tow) '19-24 — over by ~5,096 lb loaded
  • Ram 1500 (5.7 Hemi, max tow) '11-18 — over by ~7,011 lb loaded
  • Ram 2500 (6.7 Cummins) '11-18 — over by ~391 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 ~6,671 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 ~6,671 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 ~10,721 lb loaded
  • Toyota Tacoma (V6, tow pkg) '16-23 — over by ~10,451 lb loaded
  • Toyota Tundra (5.7 V8, tow pkg) '11-21 — over by ~7,391 lb loaded
  • Toyota Tundra (i-Force Max, tow pkg) '22-26 — over by ~5,771 lb loaded
  • Volkswagen Atlas (tow pkg) '18-26 — no pickup bed — cannot hitch a fifth wheel
THE SPECS
Length41.2 ft
Height (incl. A/C)13.3 ft
Width8.0 ft
Interior height7.2 ft
GVWR18,000 lb
Dry weight15,104 lb
Dry tongue weight3,395 lb
Cargo capacity2,896 lb
Sleeps4
Slide-outs4
Axles2
Fresh water80 gal
Grey water90 gal
Black water45 gal
Air conditioning30,000 BTU
Awning11.5 ft

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

WHERE PEOPLE SLEEP
  • 1× front king bed(Permanent)70×80
  • 1× dinette converts to a bed(Convertible)—
  • 1× hide-a-bed sofa(Convertible)—
HOW IT'S BUILT — 5/5
WallsAzdel composite
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Heartland (Better tier): Heartland's flagship luxury fifth wheel, rebranded Landmark 365 in 2015 - Azdel walls on a double-welded aluminum cage, vacuum-bonded floors, 8,000 lb axles and three A/C units; floorplans are named after cities rather than numbered.

YEAR BY YEAR — WHAT CHANGED
  • 2015Introduced
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.

THE READ

Early Landmark 365 couples plan at just over 41 ft.

OTHER LANDMARK FLOORPLANS
Arlington · 18,000 lb · sleeps 4Ashland · 18,000 lb · sleeps 4Charleston · 18,000 lb · sleeps 2Chesapeake · 18,000 lb · sleeps 4Concord · 18,000 lb · sleeps 6Daytona · 18,000 lb · sleeps 4Lafayette · 18,000 lb · sleeps 6Louisville · 18,000 lb · sleeps 2Madison · 18,000 lb · sleeps 4Newport · 18,000 lb · sleeps 4Oshkosh · 18,000 lb · sleeps 4Phoenix · 18,000 lb · sleeps 6Rainier · 18,000 lb · sleeps 4Scottsdale · 18,000 lb · sleeps 4the whole line →
Is the Key West 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.