TRUE NORTH DUX LLC HIN Decoder — MIC TND
Hull Identification Numbers beginning with TND were assigned by the US Coast Guard to TRUE NORTH DUX LLC of PORT HURON, MI. The company is recorded as out of business since 2012 — 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
TND
Location
PORT HURON, MI
In business
since 2011
Status
Out of business (2012)
TRUE NORTH DUX LLC hulls (2011–2012) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
How a TRUE NORTH DUX LLC HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example TND45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | TND | Identifies TRUE NORTH DUX LLC, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | TRUE NORTH DUX LLC's own production number for the specific hull (the letters I, O, Q are never used). |
| 9 | Certification month | D | Month built — A=January … L=December (D = April). |
| 10 | Certification year | 4 | Last digit of the certification year. |
| 11–12 | Model year | 24 | The boat’s model year. |
Free · no account · the HIN is on the transom, upper starboard (right) corner
Buying this TRUE NORTH DUX LLC? Check it before you pay.
TRUE NORTH DUX LLC is recorded out of business (2012) — which affects recalls, parts support, and resale. The $9.99 Boat Report adds the full CPSC marine-recall check, a HIN consistency check, a verify-before-you-buy checklist, and the USCG builder record for this hull — one downloadable report, one-time, no subscription. See what's included
TRUE NORTH DUX LLC HIN FAQ
What does a TRUE NORTH DUX LLC HIN look like?
It starts with the three characters "TND" — the Manufacturer Identification Code the US Coast Guard assigned to TRUE NORTH DUX LLC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. TRUE NORTH DUX LLC hulls (2011–2012) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is TRUE NORTH DUX LLC still in business?
USCG records list TRUE NORTH DUX LLC as out of business since 2012. 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 TRUE NORTH DUX LLC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. TRUE NORTH DUX LLC hulls (2011–2012) 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.
Where is the HIN on a TRUE NORTH DUX LLC boat?
On the outside upper-starboard (right) corner of the transom, within two inches of the top — required by 33 CFR 181.29. Since August 1984 an identical duplicate HIN is also molded into an unexposed interior location as an anti-theft measure. Both should match the title, registration, and insurance card exactly.
Is the "TND" MIC the same as a TRUE NORTH DUX LLC serial number?
No. "TND" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies TRUE NORTH DUX LLC. The hull serial number is characters 4–8: TRUE NORTH DUX LLC's own production number for that specific boat (the letters I, O, and Q are never used). The full 12-character HIN combines the MIC, the serial, and the date code.
Can a TRUE NORTH DUX LLC HIN tell me the exact model?
Not on its own. A HIN encodes the builder, hull serial, certification month/year, and model year — not the model name or length. Match the decoded year and serial against TRUE NORTH DUX LLC records, the title, or a marine survey to confirm the exact model and configuration.
Other builders in MI
Sources: verified against the USCG Manufacturer Identification Code database (refreshed monthly) · HIN format per 33 CFR Part 181, Subpart C. Reviewed by Sam Reynolds, Lead Researcher, CarWhere. Cite this page: CarWhere, "TRUE NORTH DUX LLC HIN Decoder," carwhere.com/hin-decoder/tnd, last verified 2026-06-15.