HADLOCK BOAT YARD HIN Decoder
Hull Identification Numbers beginning with HDK were assigned by the US Coast Guard to HADLOCK BOAT YARD of HADLOCK, WA. The company is recorded as out of business since 2001 — common for older hulls, and useful to know when hunting parts or records. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
HDK
Location
HADLOCK, WA
In business
since 1986
Status
Out of business (2001)
HADLOCK BOAT YARD hulls (1986–2001) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
The optional $19.99 Boat History Report adds stolen-boat, salvage/auction, incident, and USCG documentation checks — one-time, no subscription (typical boat-history services charge $25+).
HADLOCK BOAT YARD HIN FAQ
What does a HADLOCK BOAT YARD HIN look like?
It starts with the three characters "HDK" — the Manufacturer Identification Code the US Coast Guard assigned to HADLOCK BOAT YARD — followed by a 5-character hull serial and a 4-character date code, 12 characters total. HADLOCK BOAT YARD hulls (1986–2001) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is HADLOCK BOAT YARD still in business?
USCG records list HADLOCK BOAT YARD as out of business since 2001. That's common for older hulls — the HIN still decodes normally, and the out-of-business date helps date the boat and guides parts-hunting toward salvage and owner groups rather than a dealer network.
How do I decode the year on a HADLOCK BOAT YARD HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. HADLOCK BOAT YARD hulls (1986–2001) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in WA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "HADLOCK BOAT YARD HIN Decoder," carwhere.com/hin-decoder/hdk, last verified 2026-06-12.