WILMETTE BOAT WORKS HIN Decoder
Hull Identification Numbers beginning with WUL were assigned by the US Coast Guard to WILMETTE BOAT WORKS of GLENVIEW, IL. 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
WUL
Location
GLENVIEW, IL
In business
since 1983
Status
Out of business (1987)
WILMETTE BOAT WORKS built hulls across both HIN eras (1983–1987): 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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WILMETTE BOAT WORKS HIN FAQ
What does a WILMETTE BOAT WORKS HIN look like?
It starts with the three characters "WUL" — the Manufacturer Identification Code the US Coast Guard assigned to WILMETTE BOAT WORKS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. WILMETTE BOAT WORKS built hulls across both HIN eras (1983–1987): 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 WILMETTE BOAT WORKS still in business?
USCG records list WILMETTE BOAT WORKS 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 WILMETTE BOAT WORKS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. WILMETTE BOAT WORKS built hulls across both HIN eras (1983–1987): 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 IL
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "WILMETTE BOAT WORKS HIN Decoder," carwhere.com/hin-decoder/wul, last verified 2026-06-12.