Keystone Retreat 39FKSS
Travel trailerbuilt 2020–24Mixed build tierCommon on the used market
WHAT ONE COSTS
$34,100est. used (2024, 2 yr old)
Sticker was $49,920 in 2023. Out of production since 2024, so the used market is the only way to buy one. Estimate assumes a 2024 unit.
WHAT IT WEIGHS BEHIND YOUR TRUCK
~12,232 lbestimated as towed, for 2 people
dry weight 10,990 lb + fresh water (53 gal, full) 442 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 around13,595 lb (10% margin)
GVWR (the sticker maximum)13,350 lb
Tongue weight, loaded~1,536 lb (13%)
Cargo capacity2,360 lb
WHICH TOW VEHICLES IT FITS: 20 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 39FKSS's published weights held steady.
The 75it doesn't fit
- Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26: over by ~5,302 lb loaded
- Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22: over by ~5,302 lb loaded
- Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-26: over by ~262 lb loaded
- Chevrolet Silverado 1500 (max tow) '14-18: over by ~982 lb loaded
- Chevrolet Silverado EV (4WT) '24-26: over by ~982 lb loaded
- Chevrolet Suburban (5.3 V8, max tow) '21-26: over by ~4,762 lb loaded
- Chevrolet Tahoe (5.3 V8, max tow) '21-26: over by ~4,672 lb loaded
- Chevrolet Traverse (tow pkg) '18-26: over by ~7,732 lb loaded
- Chrysler Pacifica '17-26: over by ~8,992 lb loaded
- Dodge Durango (5.7 / 6.4 Hemi, tow pkg) '14-26: over by ~4,402 lb loaded
- Ford Bronco 4-dr (2.7 EcoBoost, tow pkg) '21-26: over by ~8,182 lb loaded
- Ford Expedition (3.5 EcoBoost, tow pkg) '25-26: over by ~3,592 lb loaded
- Ford Expedition (3.5 EcoBoost, tow pkg) '18-24: over by ~3,862 lb loaded
- Ford Explorer (3.0 EcoBoost, tow pkg) '20-26: over by ~7,192 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '24-26: over by ~82 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '15-20: over by ~352 lb loaded
- Ford F-150 (3.5 EcoBoost, max tow) '11-14: over by ~2,062 lb loaded
- Ford F-150 Lightning (max trailer tow) '22-26: over by ~3,232 lb loaded
- Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26: over by ~8,632 lb loaded
- Ford Ranger (2.3 EcoBoost, tow pkg) '19-23: over by ~5,482 lb loaded
- Ford Ranger (2.7 EcoBoost, tow pkg) '24-26: over by ~5,482 lb loaded
- Ford Transit (HD tow pkg) '15-26: over by ~6,022 lb loaded
- GMC Acadia (tow pkg) '20-26: over by ~7,732 lb loaded
- GMC Hummer EV Pickup '22-26: over by ~5,482 lb loaded
- GMC Sierra EV '24-26: over by ~1,432 lb loaded
- GMC Yukon / Yukon XL (5.3 V8, max tow) '21-26: over by ~4,672 lb loaded
- Honda Odyssey '18-26: over by ~9,082 lb loaded
- Honda Passport (AWD) '19-26: over by ~7,732 lb loaded
- Honda Pilot (AWD, tow pkg) '16-26: over by ~7,732 lb loaded
- Honda Ridgeline (AWD) '17-26: over by ~7,732 lb loaded
- Hyundai Palisade (tow pkg) '20-26: over by ~7,732 lb loaded
- Hyundai Santa Cruz (2.5T AWD) '22-26: over by ~7,732 lb loaded
- Jeep Gladiator (3.6 V6, max tow) '20-26: over by ~5,302 lb loaded
- Jeep Grand Cherokee (5.7 Hemi) '11-21: over by ~5,752 lb loaded
- Jeep Grand Cherokee (WL, tow pkg) '22-26: over by ~6,652 lb loaded
- Jeep Grand Cherokee L (5.7 Hemi) '21-26: over by ~5,752 lb loaded
- Jeep Grand Wagoneer (Hurricane, max tow) '22-26: over by ~3,367 lb loaded
- Jeep Wagoneer (Hurricane, max tow) '22-26: over by ~3,232 lb loaded
- Jeep Wrangler Unlimited 4-dr (tow pkg) '18-26: over by ~9,082 lb loaded
- Kia Telluride (tow pkg) '20-26: over by ~7,282 lb loaded
- Land Rover Defender '20-26: over by ~4,852 lb loaded
- Land Rover Discovery '17-26: over by ~4,852 lb loaded
- Lexus GX 550 (tow pkg) '24-26: over by ~4,047 lb loaded
- Lexus LX 600 '22-26: over by ~5,032 lb loaded
- Mazda CX-90 (3.3 turbo, tow pkg) '24-26: over by ~7,732 lb loaded
- Mercedes-Benz Sprinter '19-26: over by ~5,482 lb loaded
- Nissan Armada (3.5 twin-turbo, tow pkg) '25-26: over by ~4,582 lb loaded
- Nissan Armada (tow pkg) '17-24: over by ~4,582 lb loaded
- Nissan Frontier (3.8 V6, tow pkg) '22-26: over by ~5,797 lb loaded
- Nissan Pathfinder (tow pkg) '22-26: over by ~6,832 lb loaded
- Nissan Titan (5.6 V8, tow pkg) '17-24: over by ~3,447 lb loaded
- Nissan Titan XD (Cummins diesel) '16-19: over by ~792 lb loaded
- Ram 1500 (3.0 Hurricane, max tow) '25-26: over by ~1,782 lb loaded
- Ram 1500 (5.7 Hemi eTorque, max tow) '19-24: over by ~757 lb loaded
- Ram 1500 (5.7 Hemi, max tow) '11-18: over by ~2,672 lb loaded
- Ram ProMaster '14-26: over by ~6,012 lb loaded
- Rivian R1S '22-26: over by ~5,302 lb loaded
- Rivian R1T '22-26: over by ~2,332 lb loaded
- Subaru Ascent '19-26: over by ~7,732 lb loaded
- Subaru Outback (XT / Wilderness) '20-26: over by ~9,082 lb loaded
- Tesla Cybertruck '24-26: over by ~2,332 lb loaded
- Tesla Model X (tow pkg) '16-26: over by ~7,732 lb loaded
- Tesla Model Y (tow pkg) '21-26: over by ~9,082 lb loaded
- Toyota 4Runner (4.0 V6) '11-24: over by ~7,732 lb loaded
- Toyota 4Runner (i-Force Max) '25-26: over by ~6,832 lb loaded
- Toyota Grand Highlander (i-Force Max) '24-26: over by ~7,732 lb loaded
- Toyota Highlander (tow pkg) '20-26: over by ~7,732 lb loaded
- Toyota Land Cruiser (i-Force Max) '24-26: over by ~6,832 lb loaded
- Toyota Sequoia (i-Force Max, tow pkg) '23-26: over by ~3,662 lb loaded
- Toyota Sienna '21-26: over by ~9,082 lb loaded
- Toyota Tacoma (i-Force Max, tow pkg) '24-26: over by ~6,382 lb loaded
- Toyota Tacoma (V6, tow pkg) '16-23: over by ~6,112 lb loaded
- Toyota Tundra (5.7 V8, tow pkg) '11-21: over by ~3,052 lb loaded
- Toyota Tundra (i-Force Max, tow pkg) '22-26: over by ~1,432 lb loaded
- Volkswagen Atlas (tow pkg) '18-26: over by ~7,732 lb loaded
These verdicts assume 2 people aboard with typical gear. See the margin for your truck and your crew →
THE SPECS
Length40.2 ft
Height (incl. A/C)12.6 ft
Width8.5 ft
GVWR13,350 lb
Dry weight10,990 lb
Dry tongue weight1,380 lb
Cargo capacity2,360 lb
Sleeps4
Slide-outs3
Axles2
Fresh water53 gal
Grey water78 gal
Black water39 gal
Air conditioning15,000 BTU
A missing row means the maker never published that figure: unknown, not zero.
WHERE PEOPLE SLEEP
- 1× King bed(Permanent)72×80
- 1× 72-inch sleeper sofa(Convertible)—
HOW IT'S BUILT: 1/5
WallsWood frame + siding
FrameWood
RoofStandard
UnderbellyEnclosed
Keystone (Mixed tier): Retreat Destination Trailer
YEAR BY YEAR: WHAT CHANGED
- 2020Introduced
FINDING ONE
Common: usually several for sale within a day’s drive. Why: Keystone is a volume manufacturer. Estimated from build volume and production span, not a count of live listings.
OUR TAKE
Front kitchen with sofa slide; couples plan.
OTHER RETREAT FLOORPLANS
391CLDL · 15,790 lb · sleeps 9391FDEN · 13,200 lb · sleeps 4391FKSS · 13,350 lb · sleeps 4391FLFT · 14,000 lb · sleeps 7391FLRS · 13,400 lb · sleeps 4391FLSL · 15,655 lb · sleeps 6391FSRL · 15,700 lb · sleeps 8391HBDL · 15,655 lb · sleeps 9391LOFT · 13,925 lb · sleeps 6391MBNK · 13,190 lb · sleeps 7391MKTS · 13,925 lb · sleeps 4391RDEN · 13,470 lb · sleeps 6391RS · 15,655 lb · sleeps 439CLDL · 15,772 lb · sleeps 9the whole line →
Find one for sale
Live listings for the 39FKSS on the big marketplaces. Each search opens pre-filled with this exact floorplan:
Inventory varies by site and day. Slim pickings? search the whole Retreat line ↗
Is the 39FKSS 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.