CONSTANT CAMBER BT WKS HIN Decoder
Hull Identification Numbers beginning with KKW were assigned by the US Coast Guard to CONSTANT CAMBER BT WKS of FERNDALE, WA. The company is recorded as out of business since 1984 — 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
KKW
Location
FERNDALE, WA
In business
since 1980
Status
Out of business (1984)
CONSTANT CAMBER BT WKS hulls (1980–1984) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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CONSTANT CAMBER BT WKS HIN FAQ
What does a CONSTANT CAMBER BT WKS HIN look like?
It starts with the three characters "KKW" — the Manufacturer Identification Code the US Coast Guard assigned to CONSTANT CAMBER BT WKS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. CONSTANT CAMBER BT WKS hulls (1980–1984) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Is CONSTANT CAMBER BT WKS still in business?
USCG records list CONSTANT CAMBER BT WKS as out of business since 1984. 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 CONSTANT CAMBER BT WKS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. CONSTANT CAMBER BT WKS hulls (1980–1984) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984. 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, "CONSTANT CAMBER BT WKS HIN Decoder," carwhere.com/hin-decoder/kkw, last verified 2026-06-12.