CamperHardlyKnowHer

Keystone Montana High Country 300RK

Fifth wheelbuilt 2026– (in production)Mixed build tierFindable on the used market
WHAT ONE COSTS
$132,600MSRP today

Still in production — a used 2023 would run roughly $91,500.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~13,982 lbestimated as towed, for 2 people

dry weight 12,540 lb + fresh water (77 gal, full) 642 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 around15,540 lb (10% margin)
GVWR (the sticker maximum)15,700 lb
Tongue weight, loaded~2,291 lb (16%)
Cargo capacity3,160 lb
WHICH TOW VEHICLES IT FITS — 19 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 300RK'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 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
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) '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 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
The 76it doesn't fit
  • Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26 — over by ~7,052 lb loaded
  • Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22 — over by ~7,052 lb loaded
  • Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26 — over by ~4,712 lb loaded
  • Chevrolet Silverado 1500 (max tow) '14-18 — over by ~3,542 lb loaded
  • Chevrolet Silverado EV (4WT) '24-26 — over by ~2,732 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 ~4,262 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '11-14 — over by ~3,812 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '15-20 — over by ~3,272 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '21-23 — over by ~1,382 lb loaded
  • Ford F-150 Lightning (max trailer tow) '22-26 — over by ~4,982 lb loaded
  • Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26 — over by ~10,382 lb loaded
  • Ford Ranger (2.3 EcoBoost, tow pkg) '19-23 — over by ~7,232 lb loaded
  • Ford Ranger (2.7 EcoBoost, tow pkg) '24-26 — over by ~7,232 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 ~7,232 lb loaded
  • GMC Sierra EV '24-26 — over by ~3,182 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 ~9,482 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 ~9,482 lb loaded
  • Jeep Gladiator (3.6 V6, max tow) '20-26 — over by ~7,052 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 ~7,547 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 ~5,197 lb loaded
  • Nissan Titan XD (Cummins diesel) '16-19 — over by ~2,542 lb loaded
  • Ram 1500 (3.0 Hurricane, max tow) '25-26 — over by ~3,532 lb loaded
  • Ram 1500 (5.7 Hemi eTorque, max tow) '19-24 — over by ~2,507 lb loaded
  • Ram 1500 (5.7 Hemi, max tow) '11-18 — over by ~4,422 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 ~4,082 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 ~4,082 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 ~8,132 lb loaded
  • Toyota Tacoma (V6, tow pkg) '16-23 — over by ~7,862 lb loaded
  • Toyota Tundra (5.7 V8, tow pkg) '11-21 — over by ~4,802 lb loaded
  • Toyota Tundra (i-Force Max, tow pkg) '22-26 — over by ~3,182 lb loaded
  • Volkswagen Atlas (tow pkg) '18-26 — no pickup bed — cannot hitch a fifth wheel
THE SPECS
Length34.9 ft
Height (incl. A/C)13.3 ft
Width8.4 ft
GVWR15,700 lb
Dry weight12,540 lb
Dry tongue weight2,055 lb
Cargo capacity3,160 lb
Sleeps4
Slide-outs3
Axles2
Fresh water77 gal
Grey water100 gal
Black water50 gal
Air conditioning30,000 BTU
Solar (standard)220 W

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

WHERE PEOPLE SLEEP
  • 1× front private bedroom king(Permanent)72×80
  • 1× L-shaped sofa(Convertible)—
  • 1× dinette(Convertible)—
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Keystone (Mixed tier): The lighter half of Keystone's Montana family — a 101in wide body with frameless windows, six-point hydraulic auto-levelling, Curt slipper-roll suspension and a Helix pin box, plus a SolarFlex package standard. Good residential feel for the money; Keystone's volume-plant QC is the usual caveat.

YEAR BY YEAR — WHAT CHANGED
  • 2026Introduced
FINDING ONE

Findable — a few listed nationwide most weeks. Why: Keystone 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

Rear kitchen with an L-shaped sofa; the lightest pin weight of the current book at 2,055lb. GVWR derived from shipping weight plus carrying capacity.

OTHER MONTANA HIGH COUNTRY FLOORPLANS
280CK · 14,300 lb · sleeps 4281CK · 14,250 lb · sleeps 4290RL · 16,255 lb · sleeps 4294RL · 14,300 lb · sleeps 6295RL · 15,300 lb · sleeps 6311RD · 15,600 lb · sleeps 6325RK · 15,985 lb · sleeps 6330RL · 14,260 lb · sleeps 6331RL · 16,580 lb · sleeps 6334BH · 16,000 lb · sleeps 8350BH · 16,000 lb · sleeps 8351BH · 16,655 lb · sleeps 8362RD · 16,000 lb · sleeps 8364BH · 16,000 lb · sleeps 8the whole line →
Is the 300RK 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.