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Heartland Sundance 231ML

Fifth wheelbuilt 2021–24Mixed build tierFindable on the used market
WHAT ONE COSTS
$35,600est. used (2024, 2 yr old)

Sticker was $50,251 in 2022. Out of production since 2024, so the used market is the only way to buy one. Estimate assumes a 2024 unit.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~6,257 lbestimated as towed, for 2 people

dry weight 5,090 lb + fresh water (44 gal, full) 367 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 around6,955 lb (10% margin)
GVWR (the sticker maximum)7,532 lb
Tongue weight, loaded~654 lb (10%: low, watch for sway)
Cargo capacity2,410 lb
WHICH TOW VEHICLES IT FITS: 44 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 231ML'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 Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-267,700 lbfits, loaded, with 10% margin
Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-227,700 lbfits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-2613,300 lbfits, loaded, with 10% margin
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
Chevrolet Silverado 1500 (max tow) '14-1812,500 lbfits, loaded, with 10% margin
Chevrolet Silverado EV (4WT) '24-2612,500 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '24-2613,500 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '15-2013,200 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '21-2314,000 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '11-1411,300 lbfits, loaded, with 10% margin
Ford F-150 Lightning (max trailer tow) '22-2610,000 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 diesel, tow pkg) '17-1918,000 lbfits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel) '11-1616,600 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
Ford Ranger (2.3 EcoBoost, tow pkg) '19-237,500 lbfits, loaded, with 10% margin
Ford Ranger (2.7 EcoBoost, tow pkg) '24-267,500 lbfits, loaded, with 10% margin
GMC Hummer EV Pickup '22-267,500 lbfits, loaded, with 10% margin
GMC Sierra EV '24-2612,000 lbfits, loaded, with 10% margin
Jeep Gladiator (3.6 V6, max tow) '20-267,700 lbfits, loaded, with 10% margin
Nissan Frontier (3.8 V6, tow pkg) '22-267,150 lbfits, loaded, with 10% margin
Nissan Titan (5.6 V8, tow pkg) '17-249,760 lbfits, loaded, with 10% margin
Nissan Titan XD (Cummins diesel) '16-1912,710 lbfits, loaded, with 10% margin
Ram 1500 (3.0 Hurricane, max tow) '25-2611,610 lbfits, loaded, with 10% margin
Ram 1500 (5.7 Hemi eTorque, max tow) '19-2412,750 lbfits, loaded, with 10% margin
Ram 1500 (5.7 Hemi, max tow) '11-1810,620 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
Rivian R1T '22-2611,000 lbfits, loaded, with 10% margin
Tesla Cybertruck '24-2611,000 lbfits, loaded, with 10% margin
Toyota Tundra (5.7 V8, tow pkg) '11-2110,200 lbfits, loaded, with 10% margin
Toyota Tundra (i-Force Max, tow pkg) '22-2612,000 lbfits, loaded, with 10% margin
The 51it doesn't fit

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

THE SPECS
Length26.9 ft
Height (incl. A/C)10.9 ft
Width8.0 ft
GVWR7,532 lb
Dry weight5,090 lb
Dry tongue weight532 lb
Cargo capacity2,410 lb
Sleeps6
Slide-outs1
Axles2
Fresh water44 gal
Grey water30 gal
Black water30 gal
Air conditioning13,500 BTU
Awning19 ft

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

WHERE PEOPLE SLEEP
  • 1× Murphy bed in the front lounge(Stow-away)—
  • 1× dinette converts to a bed(Convertible)—
  • 1× sofa converts to a bed(Convertible)—
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Heartland (Mixed tier): Heartland's mid-price family, all built with laminated fiberglass over welded aluminum framing: Sundance fifth wheels, the shorter half-ton-friendly Sundance XLT fifth wheels, and Sundance Ultra-Lite travel trailers.

YEAR BY YEAR: WHAT CHANGED
  • 2021Introduced
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

Murphy-lounge layout with a 19 ft awning; the flexible small-couple plan.

OTHER SUNDANCE FLOORPLANS
181MB · 7,340 lb · sleeps 4189MB · 6,160 lb · sleeps 4211MB · 7,540 lb · sleeps 8221RB · 7,430 lb · sleeps 4241BH · 7,570 lb · sleeps 824ML · 9,500 lb · sleeps 4262RB · 7,780 lb · sleeps 6265BH · 7,748 lb · sleeps 8268RL · 7,800 lb · sleeps 6278BH · 9,460 lb · sleeps 1027MLOK · 10,400 lb · sleeps 227OKFK · 9,800 lb · sleeps 427RBSS · 9,400 lb · sleeps 4283RB · 9,620 lb · sleeps 8the whole line →
Find one for sale

Live listings for the 231ML 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 Sundance line ↗

Is the 231ML 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.