CamperHardlyKnowHer

Prime Time LaCrosse 3399SE

Travel trailerbuilt 2019–20Mixed 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
~9,878 lbestimated as towed, for 2 people

dry weight 8,678 lb + fresh water (48 gal, full) 400 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 around10,980 lb (10% margin)
GVWR (the sticker maximum)11,190 lb
Tongue weight, loaded~1,127 lb (11%)
Cargo capacity2,512 lb
WHICH TOW VEHICLES IT FITS — 33 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 3399SE's published weights held steady.

VEHICLETOW RATINGVERDICT
Chevrolet Silverado / GMC Sierra 1500 (6.2 V8, max tow) '19-2613,300 lbfits, loaded, with 10% margin
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
Chevrolet Silverado 1500 (max tow) '14-1812,500 lbfits, loaded, with 10% margin
Chevrolet Silverado EV (4WT) '24-2612,500 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '24-2613,500 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '11-1411,300 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '15-2013,200 lbfits, loaded, with 10% margin
Ford F-150 (3.5 EcoBoost, max tow) '21-2314,000 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
GMC Sierra EV '24-2612,000 lbfits, loaded, with 10% margin
Nissan Titan XD (Cummins diesel) '16-1912,710 lbfits, loaded, with 10% margin
Ram 1500 (3.0 Hurricane, max tow) '25-2611,610 lbfits, loaded, with 10% margin
Ram 1500 (5.7 Hemi eTorque, max tow) '19-2412,750 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
Rivian R1T '22-2611,000 lbfits, loaded, with 10% margin
Tesla Cybertruck '24-2611,000 lbfits, loaded, with 10% margin
Toyota Tundra (i-Force Max, tow pkg) '22-2612,000 lbfits, loaded, with 10% margin
The 62it doesn't fit
  • Chevrolet Colorado / GMC Canyon (2.7 Turbo HO, tow pkg) '23-26 — over by ~2,948 lb loaded
  • Chevrolet Colorado / GMC Canyon (2.8 Duramax) '15-22 — over by ~2,948 lb loaded
  • Chevrolet Suburban (5.3 V8, max tow) '21-26 — over by ~2,408 lb loaded
  • Chevrolet Tahoe (5.3 V8, max tow) '21-26 — over by ~2,318 lb loaded
  • Chevrolet Traverse (tow pkg) '18-26 — over by ~5,378 lb loaded
  • Chrysler Pacifica '17-26 — over by ~6,638 lb loaded
  • Dodge Durango (5.7 / 6.4 Hemi, tow pkg) '14-26 — over by ~2,048 lb loaded
  • Ford Bronco 4-dr (2.7 EcoBoost, tow pkg) '21-26 — over by ~5,828 lb loaded
  • Ford Expedition (3.5 EcoBoost, tow pkg) '18-24 — over by ~1,508 lb loaded
  • Ford Expedition (3.5 EcoBoost, tow pkg) '25-26 — over by ~1,238 lb loaded
  • Ford Explorer (3.0 EcoBoost, tow pkg) '20-26 — over by ~4,838 lb loaded
  • Ford F-150 Lightning (max trailer tow) '22-26 — over by ~878 lb loaded
  • Ford Maverick (2.0 EcoBoost, 4K tow pkg) '22-26 — over by ~6,278 lb loaded
  • Ford Ranger (2.3 EcoBoost, tow pkg) '19-23 — over by ~3,128 lb loaded
  • Ford Ranger (2.7 EcoBoost, tow pkg) '24-26 — over by ~3,128 lb loaded
  • Ford Transit (HD tow pkg) '15-26 — over by ~3,668 lb loaded
  • GMC Acadia (tow pkg) '20-26 — over by ~5,378 lb loaded
  • GMC Hummer EV Pickup '22-26 — over by ~3,128 lb loaded
  • GMC Yukon / Yukon XL (5.3 V8, max tow) '21-26 — over by ~2,318 lb loaded
  • Honda Odyssey '18-26 — over by ~6,728 lb loaded
  • Honda Passport (AWD) '19-26 — over by ~5,378 lb loaded
  • Honda Pilot (AWD, tow pkg) '16-26 — over by ~5,378 lb loaded
  • Honda Ridgeline (AWD) '17-26 — over by ~5,378 lb loaded
  • Hyundai Palisade (tow pkg) '20-26 — over by ~5,378 lb loaded
  • Hyundai Santa Cruz (2.5T AWD) '22-26 — over by ~5,378 lb loaded
  • Jeep Gladiator (3.6 V6, max tow) '20-26 — over by ~2,948 lb loaded
  • Jeep Grand Cherokee (5.7 Hemi) '11-21 — over by ~3,398 lb loaded
  • Jeep Grand Cherokee (WL, tow pkg) '22-26 — over by ~4,298 lb loaded
  • Jeep Grand Cherokee L (5.7 Hemi) '21-26 — over by ~3,398 lb loaded
  • Jeep Grand Wagoneer (Hurricane, max tow) '22-26 — over by ~1,013 lb loaded
  • Jeep Wagoneer (Hurricane, max tow) '22-26 — over by ~878 lb loaded
  • Jeep Wrangler Unlimited 4-dr (tow pkg) '18-26 — over by ~6,728 lb loaded
  • Kia Telluride (tow pkg) '20-26 — over by ~4,928 lb loaded
  • Land Rover Defender '20-26 — over by ~2,498 lb loaded
  • Land Rover Discovery '17-26 — over by ~2,498 lb loaded
  • Lexus GX 550 (tow pkg) '24-26 — over by ~1,693 lb loaded
  • Lexus LX 600 '22-26 — over by ~2,678 lb loaded
  • Mazda CX-90 (3.3 turbo, tow pkg) '24-26 — over by ~5,378 lb loaded
  • Mercedes-Benz Sprinter '19-26 — over by ~3,128 lb loaded
  • Nissan Armada (3.5 twin-turbo, tow pkg) '25-26 — over by ~2,228 lb loaded
  • Nissan Armada (tow pkg) '17-24 — over by ~2,228 lb loaded
  • Nissan Frontier (3.8 V6, tow pkg) '22-26 — over by ~3,443 lb loaded
  • Nissan Pathfinder (tow pkg) '22-26 — over by ~4,478 lb loaded
  • Nissan Titan (5.6 V8, tow pkg) '17-24 — over by ~1,093 lb loaded
  • Ram 1500 (5.7 Hemi, max tow) '11-18 — over by ~318 lb loaded
  • Ram ProMaster '14-26 — over by ~3,658 lb loaded
  • Rivian R1S '22-26 — over by ~2,948 lb loaded
  • Subaru Ascent '19-26 — over by ~5,378 lb loaded
  • Subaru Outback (XT / Wilderness) '20-26 — over by ~6,728 lb loaded
  • Tesla Model X (tow pkg) '16-26 — over by ~5,378 lb loaded
  • Tesla Model Y (tow pkg) '21-26 — over by ~6,728 lb loaded
  • Toyota 4Runner (4.0 V6) '11-24 — over by ~5,378 lb loaded
  • Toyota 4Runner (i-Force Max) '25-26 — over by ~4,478 lb loaded
  • Toyota Grand Highlander (i-Force Max) '24-26 — over by ~5,378 lb loaded
  • Toyota Highlander (tow pkg) '20-26 — over by ~5,378 lb loaded
  • Toyota Land Cruiser (i-Force Max) '24-26 — over by ~4,478 lb loaded
  • Toyota Sequoia (i-Force Max, tow pkg) '23-26 — over by ~1,308 lb loaded
  • Toyota Sienna '21-26 — over by ~6,728 lb loaded
  • Toyota Tacoma (i-Force Max, tow pkg) '24-26 — over by ~4,028 lb loaded
  • Toyota Tacoma (V6, tow pkg) '16-23 — over by ~3,758 lb loaded
  • Toyota Tundra (5.7 V8, tow pkg) '11-21 — over by ~698 lb loaded
  • Volkswagen Atlas (tow pkg) '18-26 — over by ~5,378 lb loaded
THE SPECS
Length37.6 ft
Height (incl. A/C)11.1 ft
Width8.0 ft
GVWR11,190 lb
Dry weight8,678 lb
Dry tongue weight990 lb
Cargo capacity2,512 lb
Sleeps4
Slide-outs3
Axles2
Fresh water48 gal
Grey water34 gal
Black water30 gal
Air conditioning15,000 BTU
Awning24 ft

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

WHERE PEOPLE SLEEP
  • 1× Front queen bed(Permanent)—
  • 1× Sofa converts(Convertible)—
HOW IT'S BUILT — 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Prime Time (Mixed tier): Forest River

YEAR BY YEAR — WHAT CHANGED
  • 2019Introduced
  • 2020Final year
FINDING ONE

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

THE READ

Side-entry couples plan with the longest awning LaCrosse offered.

OTHER LACROSSE FLOORPLANS
2911RB · 9,570 lb · sleeps 6292BHS · 9,445 lb · sleeps 10301RLS · 9,518 lb · sleeps 6303RKS · 9,730 lb · sleeps 4318BHS · 9,643 lb · sleeps 10319QBS · 9,613 lb · sleeps 10327RES · 11,297 lb · sleeps 4329BHT · 11,078 lb · sleeps 103310BH · 10,500 lb · sleeps 103311RK · 11,235 lb · sleeps 43370MB · 11,120 lb · sleeps 63375FE · 11,280 lb · sleeps 43380IB · 10,500 lb · sleeps 103411RK · 11,245 lb · sleeps 4the whole line →
Is the 3399SE 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.