Islander 40 Buyer's Guide
Shopping the used market for an Islander 40 means chasing a small cohort of Doug Peterson racer-cruisers launched in 1979 and built through the mid-1980s, with somewhere between 57 and 70 hulls in total. These are not common boats, but they surface often enough in the right regions for a patient buyer to find one. The 40 blends a race-derived hull with a six-berth cruising interior, and the smart shopper learns which layouts and upgrades matter before booking a survey.
Layouts on the Used Market
Every Islander 40 carries the same essential plan: a private V-berth bow cabin, an aft quarter berth under the cockpit, two saloon settees, and a pilot berth above to port, sleeping six. The U-shaped galley with propane stove sits to port at the companionway, the nav station faces it, and an enclosed head with shower sits just aft of the bow. Two keel configurations appear — the standard 7.17-foot fin and the 5.16-foot shoal draft, the latter normally paired with a shorter rig. Buyers who cruise thin water should favor the shoal version; those chasing performance will want the deeper board.
Equipment and Common Upgrades
On the used market, heating and autopilot are commonly fitted, and a spinnaker is a common sight in the sail locker. Radar, inverter, hot water, and chartplotter are often seen. Less common owner additions include solar, air conditioning, bow thruster, dinghy davits, AIS, and life raft. For a buyer, the consequential clusters are energy and navigation: an inverter and chartplotter reduce reliance on shore power and paper, while a heating system extends the season. A spinnaker matters for light-air performance but is secondary to a sound mainsail and genoa.
What to Inspect
The PVC-foam-cored deck is the area a survey should scrutinize for delamination or moisture, given the boat's age and the cored construction. The oiled teak trim needs checking for weathering and caulking failure at joints. The 42-hp Volkswagen diesel should be run up to temperature and checked for smoke and oil pressure, and the pressurized water system verified alongside the redundant foot pump.
Availability and Buyer's Takeaway
Islander 40s typically appear in the United States, the Netherlands, and Mexico. For the buyer, the short list is: confirm keel type against intended cruising grounds, survey the foam-cored deck for moisture, verify the Volkswagen diesel and both water systems, and check for a shorter rig on any shoal-draft example. A clean, well-equipped hull is a rare find worth moving on.
Price & volume trends
Monthly asking-price and listing-volume trends for the Islander 40. The line shows the median ask each month; the bars show how many listings appeared.
Monthly breakdown · 6 rows
| Month | Listings | Median ask | Δ vs. last mo. |
|---|---|---|---|
| Jan 25 | 1 | $22,500 | — |
| May 25 | 1 | $20,000 | -11.1% |
| Mar 26 | 1 | $12,500 | -37.5% |
| Apr 26 | 7 | $24,999 | +100.0% |
| Jun 26 | 4 | $69,000 | +176.0% |
| Jul 26 | 2 | $15,500 | -77.5% |
Where they're listed
Islander 40 listings appear across 1 country. United States has the most listings with 12.
Country view
12 listings · 1 country| Country | Median ask | Listings · 12 mo | Active · 90 d | Share |
|---|---|---|---|---|
| United States | $24,999 | 12 | 6 | 100.0% |
Comparable models
Similar length, displacement, and era. Open a row to compare that model's market page.
Similar boats to compare
8 similar designs| Model | LOA | Median ask | Listings · 12 mo | Active · 90 d |
|---|---|---|---|---|
| Island Packet 40 | 40' | $ 159,000 | 54 | 21 |
| Islander 36 | 36.08' | $ 23,282 | 33 | 10 |
| Elan 40 | 39.04' | $ 91,966 | 30 | 6 |
| Island Spirit 40 | 39.66' | $ 200,361 | 16 | 2 |
| Islander 40You are here | — | $ 28,750 | 14 | 6 |
| J/BOATS J/40 | 40' | $ 69,000 | 13 | 8 |
| Jeanneau Sun Fast 40 | 40' | $ 167,634 | 13 | 2 |
| Pearson 40 | 39.92' | $ 55,000 | 9 | 1 |