STOLL YACHT CONST HIN Decoder
Hull Identification Numbers beginning with SYN were assigned by the US Coast Guard to STOLL YACHT CONST of WILMINGTON, CA. The company is recorded as out of business since 1987 — 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
SYN
Location
WILMINGTON, CA
In business
since 1981
Status
Out of business (1987)
STOLL YACHT CONST built hulls across both HIN eras (1981–1987): 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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STOLL YACHT CONST HIN FAQ
What does a STOLL YACHT CONST HIN look like?
It starts with the three characters "SYN" — the Manufacturer Identification Code the US Coast Guard assigned to STOLL YACHT CONST — followed by a 5-character hull serial and a 4-character date code, 12 characters total. STOLL YACHT CONST built hulls across both HIN eras (1981–1987): 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 STOLL YACHT CONST still in business?
USCG records list STOLL YACHT CONST as out of business since 1987. 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 STOLL YACHT CONST HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. STOLL YACHT CONST built hulls across both HIN eras (1981–1987): 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 CA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "STOLL YACHT CONST HIN Decoder," carwhere.com/hin-decoder/syn, last verified 2026-06-12.