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Dutchmen Denali 366RK

Fifth wheelbuilt 2025– (in production)Mixed build tierFindable on the used market
WHAT ONE COSTS
$85,100est. MSRP (from 12 priced floorplans of this line)

Still in production. A used 2023 would run roughly $50,200.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~16,316 lbestimated as towed, for 2 people

dry weight 14,615 lb + fresh water (108 gal, full) 901 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 around18,130 lb (10% margin)
GVWR (the sticker maximum)18,000 lb
Tongue weight, loaded~3,115 lb (19%)
Cargo capacity3,385 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 366RK'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) '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
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

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

THE SPECS
Length41.7 ft
Height (incl. A/C)13.4 ft
GVWR18,000 lb
Dry weight14,615 lb
Dry tongue weight2,790 lb
Cargo capacity3,385 lb
Sleeps4
Slide-outs3
Axles2
Fresh water108 gal
Grey water88 gal
Black water44 gal
Awning18 ft

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

WHERE PEOPLE SLEEP
  • 1× Front bedroom king or queen bed(Permanent)—
  • 1× Living-room sofa converts(Convertible)—
  • 1× Dinette converts(Convertible)—
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Dutchmen (Mixed tier): Denali

YEAR BY YEAR: WHAT CHANGED
  • 2025Denali revived as a dealer-stock fifth wheel line
FINDING ONE

Findable: a few listed nationwide most weeks. Why: Dutchmen is a volume manufacturer; only 2 model years; still in production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Rear-kitchen couples fifth wheel that reopened the Denali nameplate - island kitchen across the back.

OTHER DENALI FLOORPLANS
2445RL · 10,560 lb · sleeps 4257RDS · 10,560 lb · sleeps 4262RLX · 10,560 lb · sleeps 5280LBS · 10,560 lb · sleeps 8286REX · 10,560 lb · sleeps 42901RL · 10,560 lb · sleeps 6293RKS · 12,192 lb · sleeps 4297RLX · 10,560 lb · sleeps 4307RLS · 12,192 lb · sleeps 4316RES · 12,192 lb · sleeps 4319RLS · 12,192 lb · sleeps 4330RLS · 11,169 lb · sleeps 4335RLK · 12,480 lb · sleeps 4420DS · 20,000 lb · sleeps 6the whole line →
Find one for sale

Live listings for the 366RK 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 Denali line ↗

Is the 366RK 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 dealer and aggregator listings, retrieved 2026-07.