DOWNRIVER DESIGN CO HIN Decoder
Hull Identification Numbers beginning with FSW were assigned by the US Coast Guard to DOWNRIVER DESIGN CO of IRWIN, ID. The company is recorded as out of business since 2017 — 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
FSW
Location
IRWIN, ID
In business
since 2007
Status
Out of business (2017)
DOWNRIVER DESIGN CO hulls (2007–2017) 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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DOWNRIVER DESIGN CO HIN FAQ
What does a DOWNRIVER DESIGN CO HIN look like?
It starts with the three characters "FSW" — the Manufacturer Identification Code the US Coast Guard assigned to DOWNRIVER DESIGN CO — followed by a 5-character hull serial and a 4-character date code, 12 characters total. DOWNRIVER DESIGN CO hulls (2007–2017) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is DOWNRIVER DESIGN CO still in business?
USCG records list DOWNRIVER DESIGN CO as out of business since 2017. 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 DOWNRIVER DESIGN CO HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. DOWNRIVER DESIGN CO hulls (2007–2017) 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 ID
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "DOWNRIVER DESIGN CO HIN Decoder," carwhere.com/hin-decoder/fsw, last verified 2026-06-12.