TERRY WALLACE ENTERPRZ HIN Decoder
Hull Identification Numbers beginning with TWK were assigned by the US Coast Guard to TERRY WALLACE ENTERPRZ of HONAUNAU, HI. 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
TWK
Location
HONAUNAU, HI
In business
since 1986
Status
Out of business (1991)
TERRY WALLACE ENTERPRZ 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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TERRY WALLACE ENTERPRZ HIN FAQ
What does a TERRY WALLACE ENTERPRZ HIN look like?
It starts with the three characters "TWK" — the Manufacturer Identification Code the US Coast Guard assigned to TERRY WALLACE ENTERPRZ — followed by a 5-character hull serial and a 4-character date code, 12 characters total. TERRY WALLACE ENTERPRZ 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 TERRY WALLACE ENTERPRZ still in business?
USCG records list TERRY WALLACE ENTERPRZ 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 TERRY WALLACE ENTERPRZ HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. TERRY WALLACE ENTERPRZ 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 HI
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "TERRY WALLACE ENTERPRZ HIN Decoder," carwhere.com/hin-decoder/twk, last verified 2026-06-12.