THUNDERDUCK USA HIN Decoder
Hull Identification Numbers beginning with TDU were assigned by the US Coast Guard to THUNDERDUCK USA of RIVERSIDE, CA. The builder is listed in the USCG MIC database. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
TDU
Location
RIVERSIDE, CA
In business
since 2010
Status
Listed active in USCG records
THUNDERDUCK USA hulls (2010–present) 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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THUNDERDUCK USA HIN FAQ
What does a THUNDERDUCK USA HIN look like?
It starts with the three characters "TDU" — the Manufacturer Identification Code the US Coast Guard assigned to THUNDERDUCK USA — followed by a 5-character hull serial and a 4-character date code, 12 characters total. THUNDERDUCK USA hulls (2010–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is THUNDERDUCK USA still in business?
USCG records list THUNDERDUCK USA of RIVERSIDE, CA in the MIC database (registered 2010).
How do I decode the year on a THUNDERDUCK USA HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. THUNDERDUCK USA hulls (2010–present) 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, "THUNDERDUCK USA HIN Decoder," carwhere.com/hin-decoder/tdu, last verified 2026-06-12.