SEAWOLF MARINE HIN Decoder
Hull Identification Numbers beginning with STC were assigned by the US Coast Guard to SEAWOLF MARINE of BOW, WA. 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
STC
Location
BOW, WA
In business
since 1992
Status
Listed active in USCG records
SEAWOLF MARINE hulls (1992–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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SEAWOLF MARINE HIN FAQ
What does a SEAWOLF MARINE HIN look like?
It starts with the three characters "STC" — the Manufacturer Identification Code the US Coast Guard assigned to SEAWOLF MARINE — followed by a 5-character hull serial and a 4-character date code, 12 characters total. SEAWOLF MARINE hulls (1992–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is SEAWOLF MARINE still in business?
USCG records list SEAWOLF MARINE of BOW, WA in the MIC database (registered 1992).
How do I decode the year on a SEAWOLF MARINE HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. SEAWOLF MARINE hulls (1992–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 WA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "SEAWOLF MARINE HIN Decoder," carwhere.com/hin-decoder/stc, last verified 2026-06-12.