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Dynamax DX3 37TRS

Class Cbuilt 2013–14Better build tierScarce on the used market
WHAT ONE COSTS
$165,300est. used (2014, 12 yr old; from 5 priced floorplans of this line)
THE SPECS
Length39.2 ft
Height (incl. A/C)12.4 ft
Width8.4 ft
GVWR26,000 lb
Dry weightnot published
Sleeps6
Slide-outs3
Fresh water110 gal
Grey water52 gal
Black water52 gal
Fuel100 gal

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

WHERE PEOPLE SLEEP
  • 1× Rear bedroom queen/king(Permanent)—
  • 1× Sofa(Convertible)—
  • 1× Dinette(Convertible)—
HOW IT'S BUILT: 4/5
WallsAzdel composite
FrameAluminum
RoofStandard
UnderbellyEnclosed

Dynamax (Better tier): Forest River

YEAR BY YEAR: WHAT CHANGED
  • 2013Introduced with the DX3 line
  • 2015Replaced by the 37TS
FINDING ONE

Scarce: months of watching; be ready to fly and drive it home. Why: only 2 model years; 12 years out of production. Estimated from build volume and production span, not a count of live listings.

OUR TAKE

Launch-year rear-sofa DX3 on the lighter 26,000 lb chassis; renamed 37TS when the chassis was upgraded.

OTHER DX3 FLOORPLANS
32KD · 33,000 lb · sleeps 434KD · 33,000 lb · sleeps 635DS · 33,000 lb · sleeps 436FK · 33,000 lb · sleeps 437BD · 33,000 lb · sleeps 637BH · 33,000 lb · sleeps 637RB · 33,000 lb · sleeps 637TS · 33,000 lb · sleeps 6the whole line →
Find one for sale

Live listings for the 37TRS 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 DX3 line ↗

Is the 37TRS 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 low-confidence record: figures are inferred and should be independently verified, retrieved 2026-07.