Heartland Milestone 310RK

Name: Heartland Milestone 310RK
Brand: Heartland

Fifth wheelbuilt 2024–24Mixed build tierFindable on the used market

WHAT ONE COSTS

$54,400est. used (2024, 2 yr old; from 14 priced floorplans of this line)

WHAT IT WEIGHS BEHIND YOUR TRUCK

15,000 lbno dry weight published: its rating stands in

You want a tow rating around16,670 lb (10% margin)

GVWR (the sticker maximum)15,000 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 310RK's published weights held steady. Fifth wheels also need a pickup bed and are held to the fifth-wheel rating where published.

VEHICLE	TOW RATING	VERDICT
Chevrolet Silverado / GMC Sierra 2500HD (Duramax, max tow) '24-26	22,500 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '20-23	18,510 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 2500HD (Duramax) '11-19	18,100 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '20-26	36,000 lb	fits, loaded, with 10% margin
Chevrolet Silverado / GMC Sierra 3500HD (Duramax DRW, gooseneck) '11-19	23,300 lb	fits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel, gooseneck) '20-22	22,800 lb	fits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 diesel, tow pkg) '17-19	18,000 lb	fits, loaded, with 10% margin
Ford F-250 Super Duty (6.7 HO diesel, gooseneck) '23-26	23,000 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '17-19	32,500 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '20-22	37,000 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 diesel DRW, gooseneck) '11-16	21,600 lb	fits, loaded, with 10% margin
Ford F-350 Super Duty (6.7 HO diesel DRW, gooseneck) '23-26	38,000 lb	fits, loaded, with 10% margin
Ford F-450 Super Duty (6.7 HO diesel DRW, gooseneck) '23-26	40,000 lb	fits, loaded, with 10% margin
Ram 2500 (6.7 Cummins HO) '19-26	20,000 lb	fits, loaded, with 10% margin
Ram 2500 (6.7 Cummins) '11-18	17,980 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins DRW, gooseneck) '13-18	31,210 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '25-26	36,610 lb	fits, loaded, with 10% margin
Ram 3500 (6.7 Cummins HO DRW, gooseneck) '19-24	37,090 lb	fits, loaded, with 10% margin

The 77it doesn't fit

Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26: over by ~8,070 lb loaded
Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22: over by ~8,070 lb loaded
Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26: over by ~5,730 lb loaded
Chevrolet Silverado 1500 (max tow) '14-18: over by ~4,560 lb loaded
Chevrolet Silverado EV (4WT) '24-26: over by ~3,750 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 ~5,280 lb loaded
Ford F-150 (3.5 EcoBoost, max tow) '15-20: over by ~4,290 lb loaded
Ford F-150 (3.5 EcoBoost, max tow) '21-23: over by ~2,400 lb loaded
Ford F-150 (3.5 EcoBoost, max tow) '11-14: over by ~4,830 lb loaded
Ford F-150 Lightning (max trailer tow) '22-26: over by ~6,000 lb loaded
Ford F-250 Super Duty (6.7 diesel) '11-16: over by ~60 lb loaded
Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26: over by ~11,400 lb loaded
Ford Ranger (2.3 EcoBoost, tow pkg) '19-23: over by ~8,250 lb loaded
Ford Ranger (2.7 EcoBoost, tow pkg) '24-26: over by ~8,250 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 ~8,250 lb loaded
GMC Sierra EV '24-26: over by ~4,200 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 ~10,500 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 ~10,500 lb loaded
Jeep Gladiator (3.6 V6, max tow) '20-26: over by ~8,070 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 ~8,565 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 ~6,215 lb loaded
Nissan Titan XD (Cummins diesel) '16-19: over by ~3,560 lb loaded
Ram 1500 (3.0 Hurricane, max tow) '25-26: over by ~4,550 lb loaded
Ram 1500 (5.7 Hemi eTorque, max tow) '19-24: over by ~3,525 lb loaded
Ram 1500 (5.7 Hemi, max tow) '11-18: over by ~5,440 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 ~5,100 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 ~5,100 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 ~9,150 lb loaded
Toyota Tacoma (V6, tow pkg) '16-23: over by ~8,880 lb loaded
Toyota Tundra (5.7 V8, tow pkg) '11-21: over by ~5,820 lb loaded
Toyota Tundra (i-Force Max, tow pkg) '22-26: over by ~4,200 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

Length34.8 ft

Height (incl. A/C)13.3 ft

Width8.1 ft

GVWR15,000 lb

Dry weightnot published

Sleeps4

Slide-outs4

Axles2

Fresh water50 gal

Grey water40 gal

Black water40 gal

Air conditioning15,000 BTU

Awning17 ft

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

WHERE PEOPLE SLEEP

1× King bed, front bedroom(Permanent)72×80
1× Sofa(Convertible)—
1× Dinette(Convertible)—

HOW IT'S BUILT: 5/5

WallsAzdel composite

FrameAluminum

RoofWalk-on

UnderbellyEnclosed

Heartland (Mixed tier): Milestone

YEAR BY YEAR: WHAT CHANGED

2024Introduced
2025Dropped

FINDING ONE

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

OUR TAKE

Short four-slide rear-kitchen couples plan; only offered for one model year. Heartland never published its weights, so GVWR shown is the 15,000 lb rating every full-size Milestone of that era used.

OTHER MILESTONE FLOORPLANS

317RL · 15,000 lb · sleeps 6 31RL · 14,800 lb · sleeps 4 321FL · 15,000 lb · sleeps 4 326RL · 15,000 lb · sleeps 4 333MB · 15,000 lb · sleeps 6 360HP · 15,000 lb · sleeps 4 360RD · 15,000 lb · sleeps 6 36RK · 16,000 lb · sleeps 2 370FLMB · 15,000 lb · sleeps 4 377MB · 15,000 lb · sleeps 8 379FLML · 15,000 lb · sleeps 8 380DSL · 15,000 lb · sleeps 8 386BH · 15,000 lb · sleeps 8 387RBH · 15,000 lb · sleeps 8 the whole line →

Find one for sale

Live listings for the 310RK 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 Milestone line ↗

Is the 310RK 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 low-confidence record: figures are inferred and should be independently verified, retrieved 2026-07.