STEILACOOM MARINE SVC, INC HIN Decoder
Hull Identification Numbers beginning with TEZ were assigned by the US Coast Guard to STEILACOOM MARINE SVC, INC of STEILACOOM, WA. The builder is listed in the USCG MIC database. Enter the full 12-character HIN below for build date, model year, and serial — free, no account.
MIC
TEZ
Location
STEILACOOM, WA
In business
since 1984
Status
Listed active in USCG records
STEILACOOM MARINE SVC, INC built hulls across both HIN eras (1984–present): 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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STEILACOOM MARINE SVC, INC HIN FAQ
What does a STEILACOOM MARINE SVC, INC HIN look like?
It starts with the three characters "TEZ" — the Manufacturer Identification Code the US Coast Guard assigned to STEILACOOM MARINE SVC, INC — followed by a 5-character hull serial and a 4-character date code, 12 characters total. STEILACOOM MARINE SVC, INC built hulls across both HIN eras (1984–present): 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 STEILACOOM MARINE SVC, INC still in business?
USCG records list STEILACOOM MARINE SVC, INC of STEILACOOM, WA in the MIC database (registered 1984).
How do I decode the year on a STEILACOOM MARINE SVC, INC HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. STEILACOOM MARINE SVC, INC built hulls across both HIN eras (1984–present): 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 WA
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "STEILACOOM MARINE SVC, INC HIN Decoder," carwhere.com/hin-decoder/tez, last verified 2026-06-12.