MAXUM MARINE HIN Decoder
Hull Identification Numbers beginning with MXY were assigned by the US Coast Guard to MAXUM MARINE of LAKE FOREST, IL. The builder is listed in the USCG MIC database. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
MXY
Location
LAKE FOREST, IL
In business
since 1999
Status
Listed active in USCG records
Parent company
BRUNSWICK FAMILY BOAT CO INC
MAXUM MARINE hulls (1999–present) 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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MAXUM MARINE HIN FAQ
What does a MAXUM MARINE HIN look like?
It starts with the three characters "MXY" — the Manufacturer Identification Code the US Coast Guard assigned to MAXUM MARINE — followed by a 5-character hull serial and a 4-character date code, 12 characters total. MAXUM MARINE hulls (1999–present) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is MAXUM MARINE still in business?
USCG records list MAXUM MARINE of LAKE FOREST, IL in the MIC database (registered 1999), associated with BRUNSWICK FAMILY BOAT CO INC.
How do I decode the year on a MAXUM MARINE HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. MAXUM MARINE hulls (1999–present) 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 IL
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "MAXUM MARINE HIN Decoder," carwhere.com/hin-decoder/mxy, last verified 2026-06-12.