LIQUID LOGIC HIN Decoder
Hull Identification Numbers beginning with EQK were assigned by the US Coast Guard to LIQUID LOGIC of FLAT ROCK, NC. The company is recorded as out of business since 2007 — 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
EQK
Location
FLAT ROCK, NC
In business
since 2001
Status
Out of business (2007)
LIQUID LOGIC hulls (2001–2007) 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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LIQUID LOGIC HIN FAQ
What does a LIQUID LOGIC HIN look like?
It starts with the three characters "EQK" — the Manufacturer Identification Code the US Coast Guard assigned to LIQUID LOGIC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. LIQUID LOGIC hulls (2001–2007) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is LIQUID LOGIC still in business?
USCG records list LIQUID LOGIC as out of business since 2007. 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 LIQUID LOGIC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. LIQUID LOGIC hulls (2001–2007) 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 NC
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "LIQUID LOGIC HIN Decoder," carwhere.com/hin-decoder/eqk, last verified 2026-06-12.