Free tool
HIN decoder
Paste a 12-character Hull Identification Number — we'll pull the manufacturer code, serial, and model year so you can verify it matches the title and registration.
Look on the upper starboard transom. 12 characters, no I / O / Q.
Why HIN matters when buying used
The HIN on the transom must match the HIN on the title AND the registration. A mismatch means the boat is stolen, re-titled, or had a transom replaced — all reasons to walk.
Found the boat? Run the full report.
Once the HIN checks out, paste the listing into HullCheck for a mechanic-grade verdict, fair-value range, and negotiation script.
Scan a listing free