SUMERSET HOUSEBOATS HIN Decoder
Hull Identification Numbers beginning with SZJ were assigned by the US Coast Guard to SUMERSET HOUSEBOATS of SOMERSET, KY. The company is recorded as out of business since 2003 — 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
SZJ
Location
SOMERSET, KY
In business
since 1983
Status
Out of business (2003)
Parent company
ENVY HOUSEBOATS INC
SUMERSET HOUSEBOATS built hulls across both HIN eras (1983–2003): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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SUMERSET HOUSEBOATS HIN FAQ
What does a SUMERSET HOUSEBOATS HIN look like?
It starts with the three characters "SZJ" — the Manufacturer Identification Code the US Coast Guard assigned to SUMERSET HOUSEBOATS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. SUMERSET HOUSEBOATS built hulls across both HIN eras (1983–2003): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three.
Is SUMERSET HOUSEBOATS still in business?
USCG records list SUMERSET HOUSEBOATS as out of business since 2003 (associated with ENVY HOUSEBOATS INC). 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 SUMERSET HOUSEBOATS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. SUMERSET HOUSEBOATS built hulls across both HIN eras (1983–2003): boats before August 1984 carry legacy straight-year or model-year date codes; later hulls use the current month-letter format. The decoder handles all three. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in KY
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "SUMERSET HOUSEBOATS HIN Decoder," carwhere.com/hin-decoder/szj, last verified 2026-06-12.