Dehler Duetta 94 Buyer's Guide
The Dehler Duetta 94, also sold as the Dehler 31, is a 9.4-meter (31-foot) Van de Stadt–designed cruiser built by Dehler Yachts between 1984 and 1994. On the brokerage market she appears mostly in owner three-cabin layouts, though two-cabin versions exist, and ex-charter boats are a common sight. Shopping one means weighing a solid, well-documented hull against the wear that comes from a decade-plus of mixed private and fleet use.
Layouts on the Used Market
Owner three-cabin arrangements are the more common configuration afloat, with both layouts still available to a patient buyer. Ex-charter examples turn up frequently and often show higher cycle counts on systems and interior fabrics. The boat carries six berths within a 31-foot hull, a footprint that made her attractive to flotilla operators and families alike.
Equipment and Common Upgrades
Most boats on the market carry an autopilot, cabin heating, a gennaker or spinnaker, a chartplotter, and a short-handed sail-handling setup as standard used inventory. Solar panels and an inverter are often seen, as are a self-tacking jib and a swim platform. For a buyer, the power-and-energy cluster — solar, inverter, and the original 12 V / 88 Ah battery — determines how far you can cruise without shore power. The sail-handling cluster, centered on the short-handed setup and self-tacking jib, reduces crew workload and is worth prioritizing over cosmetic additions.
What to Inspect
The baseline Yanmar 2GM20 diesel uses 2 liters of 15W40 API CG oil and a 0.25-liter gearbox fill, and turns a 25 mm shaft in a bronze bearing 4 inches long with a 1.5-inch outer diameter. Check the shaft and bearing for wear, and confirm the single-circuit Supercool cooling path is intact. The rig's shroud adjusters are a Hasselfors half-inch unit and 32 mm x 1/2-inch bolt tensioners should be examined for corrosion or elongation. Verify the 12 V / 88 Ah battery and 1 kW Hitachi starter are serviceable, since the original electrical capacity is minimal.
Availability and Buyer's Takeaway
These boats are typically found in Germany, the Netherlands, Switzerland, Austria, Croatia, and Poland. For a shopper, the checklist is short: confirm the layout matches your plans (three-cabin owner version preferred for private use), verify the diesel and shaft bearing condition, and assess whether the common upgrades — autopilot, heating, solar, short-handed rig — are present or need adding. A solid, documented Duetta 94 rewards the buyer who inspects the basics.
Price & volume trends
Monthly asking-price and listing-volume trends for the Dehler Duetta 94. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 8 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Sep 25 | 4 | $28,463 | — |
| Oct 25 | 1 | $27,824 | -2.2% |
| Jan 26 | 1 | $27,882 | +0.2% |
| Mar 26 | 2 | $22,107 | -20.7% |
| Apr 26 | 3 | $27,766 | +25.6% |
| May 26 | 5 | $26,139 | -5.9% |
| Jun 26 | 1 | $25,558 | -2.2% |
| Aug 26 | 3 | $24,280 | -5.0% |
Where they're listed
Dehler Duetta 94 listings appear across 6 countries. Netherlands has the most listings with 9 (45.0%), followed by Germany and Switzerland.
Country view
20 listings · 6 countries| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| Netherlands | $27,824 | 9 | 4 | 45.0% |
| Germany | $26,952 | 6 | 0 | 30.0% |
| Switzerland | $21,620 | 2 | 0 | 10.0% |
| Austria | $29,044 | 1 | 0 | 5.0% |
| Croatia | $27,882 | 1 | 0 | 5.0% |
| Poland | $24,630 | 1 | 0 | 5.0% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
7 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Dehler Duetta 94You are here | — | $ 27,795 | 20 | 4 |
| Van De Stadt 34 | 33.63' | $ 35,920 | 19 | 2 |
| Dehler Duetta 86 | 28.21' | $ 13,360 | 17 | 6 |
| Winner 9.50 | 31.17' | $ 43,145 | 14 | 3 |
| Dufour Classic 35 | 35' | $ 52,278 | 13 | 0 |
| Westerly GK 29 | 29' | $ 12,446 | 8 | 3 |
| Dehler Optima 98 | 32.15' | $ 28,678 | 8 | 2 |