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Alliance RV Paradigm 370FB

Fifth wheelbuilt 2021– (in production)Better build tierFindable on the used market
WHAT ONE COSTS
$139,900MSRP today

Still in production. A used 2023 would run roughly $82,600.

WHAT IT WEIGHS BEHIND YOUR TRUCK
~16,525 lbestimated as towed, for 2 people

dry weight 14,908 lb + fresh water (98 gal, full) 817 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 around18,365 lb (10% margin)
GVWR (the sticker maximum)18,000 lb
Tongue weight, loaded~2,953 lb (18%)
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 370FB's published weights changed mid-run. 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
Length40.3 ft
Height (incl. A/C)13.5 ft
Width8.4 ft
GVWR18,000 lb
Dry weight14,908 lb
Dry tongue weight2,664 lb
Sleeps4
Slide-outs4
Axles2
Fresh water98 gal
Grey water106 gal
Black water106 gal
Air conditioning40,500 BTU
Solar (standard)400 W

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

WHERE PEOPLE SLEEP
  • Mid-ship king bed(Permanent)
  • Large tri-fold sleeper sofa(Convertible)
HOW IT'S BUILT: 4/5
WallsLaminated fiberglass
FrameAluminum
RoofWalk-on
UnderbellyEnclosed

Alliance RV (Better tier): Alliance RV

YEAR BY YEAR: WHAT CHANGED
YEARSGVWRDRYMSRP
2021–2416,500 lb14,908 lb$139,927
2025–18,000 lb14,908 lb$139,927
  • 2021Introduced
  • 2025GVWR raised from 16,500 to 18,000 lb
FINDING ONE

Findable: a few listed nationwide most weeks. Why: still in production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Front-bath Paradigm — a full-width spa bathroom across the nose with a 61x30in shower; doubled black tank capacity for full-timers.

OTHER PARADIGM FLOORPLANS
Find one for sale

Live listings for the 370FB on the big marketplaces. Each search opens pre-filled with this exact floorplan:

Inventory varies by site and day. Slim pickings? search the whole Paradigm line ↗

Is the 370FB 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 manufacturer spec sheets, retrieved 2026-07.