THE TREASURE CHEST HIN Decoder
Hull Identification Numbers beginning with TTK were assigned by the US Coast Guard to THE TREASURE CHEST of CEDAR RIDGE, CA. The company is recorded as out of business since 1991 — 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
TTK
Location
CEDAR RIDGE, CA
In business
since 1986
Status
Out of business (1991)
THE TREASURE CHEST hulls (1986–1991) 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
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THE TREASURE CHEST HIN FAQ
What does a THE TREASURE CHEST HIN look like?
It starts with the three characters "TTK" — the Manufacturer Identification Code the US Coast Guard assigned to THE TREASURE CHEST — followed by a 5-character hull serial and a 4-character date code, 12 characters total. THE TREASURE CHEST hulls (1986–1991) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is THE TREASURE CHEST still in business?
USCG records list THE TREASURE CHEST as out of business since 1991. 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 THE TREASURE CHEST HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. THE TREASURE CHEST hulls (1986–1991) 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 CA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "THE TREASURE CHEST HIN Decoder," carwhere.com/hin-decoder/ttk, last verified 2026-06-12.