SINISTER CUSTOM BOATS HIN Decoder
Hull Identification Numbers beginning with UXQ were assigned by the US Coast Guard to SINISTER CUSTOM BOATS of SANTEE, 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
UXQ
Location
SANTEE, CA
In business
since 2005
Status
Listed active in USCG records
SINISTER CUSTOM BOATS hulls (2005–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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SINISTER CUSTOM BOATS HIN FAQ
What does a SINISTER CUSTOM BOATS HIN look like?
It starts with the three characters "UXQ" — the Manufacturer Identification Code the US Coast Guard assigned to SINISTER CUSTOM BOATS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. SINISTER CUSTOM BOATS hulls (2005–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is SINISTER CUSTOM BOATS still in business?
USCG records list SINISTER CUSTOM BOATS of SANTEE, CA in the MIC database (registered 2005).
How do I decode the year on a SINISTER CUSTOM BOATS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. SINISTER CUSTOM BOATS hulls (2005–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, "SINISTER CUSTOM BOATS HIN Decoder," carwhere.com/hin-decoder/uxq, last verified 2026-06-12.