BORUM BOATS INC HIN Decoder
Hull Identification Numbers beginning with MNJ were assigned by the US Coast Guard to BORUM BOATS INC of JACKSONVILLE, FL. 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
MNJ
Location
JACKSONVILLE, FL
In business
since 1988
Status
Out of business (1991)
BORUM BOATS INC hulls (1988–1991) 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
The optional $19.99 Boat History Report adds stolen-boat, salvage/auction, incident, and USCG documentation checks — one-time, no subscription (typical boat-history services charge $25+).
BORUM BOATS INC HIN FAQ
What does a BORUM BOATS INC HIN look like?
It starts with the three characters "MNJ" — the Manufacturer Identification Code the US Coast Guard assigned to BORUM BOATS INC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. BORUM BOATS INC hulls (1988–1991) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is BORUM BOATS INC still in business?
USCG records list BORUM BOATS INC 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 BORUM BOATS INC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. BORUM BOATS INC hulls (1988–1991) 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 FL
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "BORUM BOATS INC HIN Decoder," carwhere.com/hin-decoder/mnj, last verified 2026-06-12.