COASTAL ALUMINUM WELD HIN Decoder
Hull Identification Numbers beginning with RRX were assigned by the US Coast Guard to COASTAL ALUMINUM WELD of ROSENBERG, TX. The company is recorded as out of business since 1991 — 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
RRX
Location
ROSENBERG, TX
In business
since 1987
Status
Out of business (1991)
COASTAL ALUMINUM WELD hulls (1987–1991) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Free · no account · the HIN is on the transom, upper starboard (right) corner
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COASTAL ALUMINUM WELD HIN FAQ
What does a COASTAL ALUMINUM WELD HIN look like?
It starts with the three characters "RRX" — the Manufacturer Identification Code the US Coast Guard assigned to COASTAL ALUMINUM WELD — followed by a 5-character hull serial and a 4-character date code, 12 characters total. COASTAL ALUMINUM WELD hulls (1987–1991) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits.
Is COASTAL ALUMINUM WELD still in business?
USCG records list COASTAL ALUMINUM WELD as out of business since 1991. 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 COASTAL ALUMINUM WELD HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. COASTAL ALUMINUM WELD hulls (1987–1991) all use the current HIN format: a month letter (A=January…L=December), a certification-year digit, then two model-year digits. Enter the full 12-character HIN above and the decoder works it out, including the legacy formats.
Other builders in TX
Sources: USCG Manufacturer Identification Code database (uscgboating.org, refreshed monthly) · HIN format per 33 CFR 181 subpart C. Cite this page: CarWhere, "COASTAL ALUMINUM WELD HIN Decoder," carwhere.com/hin-decoder/rrx, last verified 2026-06-12.