THUNDERBIRD PRODS CORP HIN Decoder
Hull Identification Numbers beginning with TN1 were assigned by the US Coast Guard to THUNDERBIRD PRODS CORP of N MIAMI, FL. The company is recorded as out of business since 1990 — 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
TN1
Location
N MIAMI, FL
In business
since 1980
Status
Out of business (1990)
Parent company
PORTER CO
THUNDERBIRD PRODS CORP built hulls across both HIN eras (1980–1990): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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THUNDERBIRD PRODS CORP HIN FAQ
What does a THUNDERBIRD PRODS CORP HIN look like?
It starts with the three characters "TN1" — the Manufacturer Identification Code the US Coast Guard assigned to THUNDERBIRD PRODS CORP — followed by a 5-character hull serial and a 4-character date code, 12 characters total. THUNDERBIRD PRODS CORP built hulls across both HIN eras (1980–1990): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.
Is THUNDERBIRD PRODS CORP still in business?
USCG records list THUNDERBIRD PRODS CORP as out of business since 1990 (associated with PORTER CO). 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 THUNDERBIRD PRODS CORP HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. THUNDERBIRD PRODS CORP built hulls across both HIN eras (1980–1990): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in FL
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "THUNDERBIRD PRODS CORP HIN Decoder," carwhere.com/hin-decoder/tn1, last verified 2026-06-12.