Dynamax DX3 37RB
Still in production — a used 2023 would run roughly $328,500.
A missing row means the maker never published that figure — unknown, not zero.
- 1× King tilt-a-bed with gel-infused memory foam(Permanent)71×78
- 1× Tri-fold sofa(Convertible)—
- 1× Residential-style dinette (three-seat power theater seats optional)(Convertible)—
Dynamax (Better tier): Forest River
| YEARS | GVWR | DRY | MSRP |
|---|---|---|---|
| 2017–18 | 33,000 lb | 26,919 lb | $476,142 |
| 2026 | 33,000 lb | 26,919 lb | $448,701 |
- 2017Introduced
- 2019Length restated 41'2" to 40'9"; wheelbase 286"
- 2023Detroit DD8 7.7L 375 hp chassis engine
- 2026Cummins L9 returns; exterior height 12'8"
- 2027Cummins L9 450 hp; MSRP $476,142
Findable — a few listed nationwide most weeks. Why: 10-year production run; still in production. Estimated from build volume and production span — not a count of live listings.
Longest DX3 - a full-width rear bath with two sinks plus a half bath, and the biggest fresh tank at 100 gal.
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 manufacturer spec sheets, retrieved 2026-07.