CamperHardlyKnowHer

Palomino River Ranch 391MK

Fifth wheelbuilt 2023– (in production)Mixed build tierCommon 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
~14,165 lbestimated as towed, for 2 people

dry weight 12,739 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 around15,740 lb (10% margin)
GVWR (the sticker maximum)15,999 lb
Tongue weight, loaded~2,669 lb (19%)
Cargo capacity3,260 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 391MK'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 ~7,235 lb loaded
  • Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22 — over by ~7,235 lb loaded
  • Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26 — over by ~4,895 lb loaded
  • Chevrolet Silverado 1500 (max tow) '14-18 — over by ~3,725 lb loaded
  • Chevrolet Silverado EV (4WT) '24-26 — over by ~2,915 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 ~4,445 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '11-14 — over by ~3,995 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '15-20 — over by ~3,455 lb loaded
  • Ford F-150 (3.5 EcoBoost, max tow) '21-23 — over by ~1,565 lb loaded
  • Ford F-150 Lightning (max trailer tow) '22-26 — over by ~5,165 lb loaded
  • Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26 — over by ~10,565 lb loaded
  • Ford Ranger (2.3 EcoBoost, tow pkg) '19-23 — over by ~7,415 lb loaded
  • Ford Ranger (2.7 EcoBoost, tow pkg) '24-26 — over by ~7,415 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 ~7,415 lb loaded
  • GMC Sierra EV '24-26 — over by ~3,365 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 ~9,665 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 ~9,665 lb loaded
  • Jeep Gladiator (3.6 V6, max tow) '20-26 — over by ~7,235 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 ~7,730 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 ~5,380 lb loaded
  • Nissan Titan XD (Cummins diesel) '16-19 — over by ~2,725 lb loaded
  • Ram 1500 (3.0 Hurricane, max tow) '25-26 — over by ~3,715 lb loaded
  • Ram 1500 (5.7 Hemi eTorque, max tow) '19-24 — over by ~2,690 lb loaded
  • Ram 1500 (5.7 Hemi, max tow) '11-18 — over by ~4,605 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 ~4,265 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 ~4,265 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 ~8,315 lb loaded
  • Toyota Tacoma (V6, tow pkg) '16-23 — over by ~8,045 lb loaded
  • Toyota Tundra (5.7 V8, tow pkg) '11-21 — over by ~4,985 lb loaded
  • Toyota Tundra (i-Force Max, tow pkg) '22-26 — over by ~3,365 lb loaded
  • Volkswagen Atlas (tow pkg) '18-26 — no pickup bed — cannot hitch a fifth wheel
THE SPECS
Length36.6 ft
Height (incl. A/C)13.5 ft
Width8.4 ft
Interior height7.0 ft
GVWR15,999 lb
Dry weight12,739 lb
Dry tongue weight2,400 lb
Cargo capacity3,260 lb
Sleeps2
Slide-outs4
Axles2
Fresh water75 gal
Grey water78 gal
Black water39 gal
Air conditioning40,500 BTU
Awning16 ft

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

WHERE PEOPLE SLEEP
  • 1× Front king bed(Permanent)72×80
HOW IT'S BUILT — 4/5
WallsAzdel composite
FrameAluminum
RoofStandard
UnderbellyEnclosed

Palomino (Mixed tier): Palomino's residential-style destination fifth wheel, built in Middlebury Indiana alongside Columbus; high-content build (Azdel, R-38/R-40 insulation, 8,000 lb axles, hydraulic leveling) but a young, low-volume line with little owner track record

YEAR BY YEAR — WHAT CHANGED
  • 2023Introduced
FINDING ONE

Common — usually several for sale within a day’s drive. Why: Palomino is a volume manufacturer; still in production. Estimated from build volume and production span — not a count of live listings.

THE READ

The short one at 36'7" and the only River Ranch on a 15,999 lb chassis. Mid-kitchen layout, and the only plan without a sleeper sofa - a strict two-person rig with a smaller 48"x30" shower. Twin 16' awnings.

OTHER RIVER RANCH FLOORPLANS
390RL · 17,999 lb · sleeps 4392MB · 17,999 lb · sleeps 7393RL · 17,999 lb · sleeps 4399RL · 15,999 lb · sleeps 4the whole line →
Is the 391MK 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 manufacturer spec sheets, retrieved 2026-07.