POLYJOHN ENTERPRISES HIN Decoder
Hull Identification Numbers beginning with XQG were assigned by the US Coast Guard to POLYJOHN ENTERPRISES of WHITING, IN. The company is recorded as out of business since 2013 — 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
XQG
Location
WHITING, IN
In business
since 2002
Status
Out of business (2013)
Parent company
POLYJOHN ENTERPRISES
POLYJOHN ENTERPRISES hulls (2002–2013) 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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POLYJOHN ENTERPRISES HIN FAQ
What does a POLYJOHN ENTERPRISES HIN look like?
It starts with the three characters "XQG" — the Manufacturer Identification Code the US Coast Guard assigned to POLYJOHN ENTERPRISES — followed by a 5-character hull serial and a 4-character date code, 12 characters total. POLYJOHN ENTERPRISES hulls (2002–2013) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is POLYJOHN ENTERPRISES still in business?
USCG records list POLYJOHN ENTERPRISES as out of business since 2013 (associated with POLYJOHN ENTERPRISES). 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 POLYJOHN ENTERPRISES HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. POLYJOHN ENTERPRISES hulls (2002–2013) 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 IN
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "POLYJOHN ENTERPRISES HIN Decoder," carwhere.com/hin-decoder/xqg, last verified 2026-06-12.