SEASWIRL BOATS HIN Decoder
Hull Identification Numbers beginning with GSS were assigned by the US Coast Guard to SEASWIRL BOATS of LITTLE FALLS, MN. The company is recorded as out of business since 2010 — 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
GSS
Location
LITTLE FALLS, MN
In business
since 2001
Status
Out of business (2010)
Parent company
LARSON BOATS LLC
SEASWIRL BOATS hulls (2001–2010) 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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SEASWIRL BOATS HIN FAQ
What does a SEASWIRL BOATS HIN look like?
It starts with the three characters "GSS" — the Manufacturer Identification Code the US Coast Guard assigned to SEASWIRL BOATS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. SEASWIRL BOATS hulls (2001–2010) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is SEASWIRL BOATS still in business?
USCG records list SEASWIRL BOATS as out of business since 2010 (associated with LARSON BOATS LLC). 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 SEASWIRL BOATS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. SEASWIRL BOATS hulls (2001–2010) 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 MN
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "SEASWIRL BOATS HIN Decoder," carwhere.com/hin-decoder/gss, last verified 2026-06-12.