Keystone Cougar Sport 2100ML

Name: Keystone Cougar Sport 2100ML
Brand: Keystone

Fifth wheelbuilt 2027– (in production)Mixed build tierFindable 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

~8,330 lbestimated as towed, for 2 people

dry weight 7,080 lb + fresh water (54 gal, full) 450 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 around9,260 lb (10% margin)

GVWR (the sticker maximum)9,950 lb

Tongue weight, loaded~1,394 lb (17%)

WHICH TOW VEHICLES IT FITS: 37 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 2100ML'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 1500 (6.2 V8, max tow) '19-26	13,300 lb	fits, loaded, with 10% margin
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
Chevrolet Silverado 1500 (max tow) '14-18	12,500 lb	fits, loaded, with 10% margin
Chevrolet Silverado EV (4WT) '24-26	12,500 lb	fits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '24-26	13,500 lb	fits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '11-14	11,300 lb	fits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '15-20	13,200 lb	fits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '21-23	14,000 lb	fits, loaded, with 10% margin
Ford F-150 Lightning (max trailer tow) '22-26	10,000 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 diesel) '11-16	16,600 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) '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 diesel DRW, gooseneck) '17-19	32,500 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
GMC Sierra EV '24-26	12,000 lb	fits, loaded, with 10% margin
Nissan Titan (5.6 V8, tow pkg) '17-24	9,760 lb	fits, loaded, with 10% margin
Nissan Titan XD (Cummins diesel) '16-19	12,710 lb	fits, loaded, with 10% margin
Ram 1500 (3.0 Hurricane, max tow) '25-26	11,610 lb	fits, loaded, with 10% margin
Ram 1500 (5.7 Hemi eTorque, max tow) '19-24	12,750 lb	fits, loaded, with 10% margin
Ram 1500 (5.7 Hemi, max tow) '11-18	10,620 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
Rivian R1T '22-26	11,000 lb	fits, loaded, with 10% margin
Tesla Cybertruck '24-26	11,000 lb	fits, loaded, with 10% margin
Toyota Tundra (5.7 V8, tow pkg) '11-21	10,200 lb	fits, loaded, with 10% margin
Toyota Tundra (i-Force Max, tow pkg) '22-26	12,000 lb	fits, loaded, with 10% margin

The 58it doesn't fit

Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26: over by ~1,400 lb loaded
Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22: over by ~1,400 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 Maverick (2.0 EcoBoost, 4K tow pkg) '22-26: over by ~4,730 lb loaded
Ford Ranger (2.3 EcoBoost, tow pkg) '19-23: over by ~1,580 lb loaded
Ford Ranger (2.7 EcoBoost, tow pkg) '24-26: over by ~1,580 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 ~1,580 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 ~3,830 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 ~3,830 lb loaded
Jeep Gladiator (3.6 V6, max tow) '20-26: over by ~1,400 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 ~1,895 lb loaded
Nissan Pathfinder (tow pkg) '22-26: no pickup bed (cannot hitch a fifth wheel)
Ram ProMaster '14-26: no pickup bed (cannot hitch a fifth wheel)
Rivian R1S '22-26: no pickup bed (cannot hitch a fifth wheel)
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 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 ~2,480 lb loaded
Toyota Tacoma (V6, tow pkg) '16-23: over by ~2,210 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

Length25.9 ft

Height (incl. A/C)12.0 ft

GVWR9,950 lb

Dry weight7,080 lb

Dry tongue weight1,185 lb

Sleeps4

Slide-outs1

Fresh water54 gal

Grey water60 gal

Black water30 gal

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

WHERE PEOPLE SLEEP

1× King bed w/ underbed storage(Permanent)—

HOW IT'S BUILT: 3/5

WallsLaminated fiberglass

FrameSteel

RoofStandard

UnderbellyEnclosed

Keystone (Mixed tier): A half-ton-towable fifth wheel line under Keystone's Comfort Fifth Wheels umbrella, with laminated-fiberglass composite (HyperCore) walls, an AlphaPly membrane roof, HyperDeck composite decking on a steel-reinforced I-beam chassis, and a heated, fully enclosed underbelly — solid materials on a lightweight, entry-tier package.

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.

OUR TAKE

GVWR not published; derived as Shipping Weight (7,080) + Carrying Capacity (2,870) = 9,950. Width and MSRP not published; bed size not given. Collected from a census gap: this line had no catalogue record at all. tier, bn and mat are the collecting pass's editorial read, not inherited from siblings. Slide-out count added by a later pass: Raw HTML repeats 'Single Slide-Out' verbatim multiple times (heading and highlight list) tied to this 2100ML listing.

OTHER COUGAR SPORT FLOORPLANS

2700BH · 9,900 lb · sleeps 10 the whole line →

Find one for sale

Live listings for the 2100ML 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 Cougar Sport line ↗

Is the 2100ML 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 2026-09.