COASTLINE BOAT BLDRS HIN Decoder — MIC XAV
Hull Identification Numbers beginning with XAV were assigned by the US Coast Guard to COASTLINE BOAT BLDRS of PERRINE, FL. The company is recorded as out of business since 1981 — 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
XAV
Location
PERRINE, FL
In business
—
Status
Out of business (1981)
COASTLINE BOAT BLDRS hulls (1972–1981) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
How a COASTLINE BOAT BLDRS HIN breaks down
A current-format (1984–present) Hull Identification Number is 12 characters. Using the example XAV45678D424 (illustrative):
| Characters | Segment | In example | What it identifies |
|---|---|---|---|
| 1–3 | Manufacturer (MIC) | XAV | Identifies COASTLINE BOAT BLDRS, assigned by the US Coast Guard. |
| 4–8 | Hull serial number | 45678 | COASTLINE BOAT BLDRS's own production number for the specific hull (the letters I, O, Q are never used). |
| 9 | Certification month | D | Month built — A=January … L=December (D = April). |
| 10 | Certification year | 4 | Last digit of the certification year. |
| 11–12 | Model year | 24 | The boat’s model year. |
Free · no account · the HIN is on the transom, upper starboard (right) corner
Buying this COASTLINE BOAT BLDRS? Check it before you pay.
COASTLINE BOAT BLDRS is recorded out of business (1981) — which affects recalls, parts support, and resale. The $9.99 Boat Report adds the full CPSC marine-recall check, a HIN consistency check, a verify-before-you-buy checklist, and the USCG builder record for this hull — one downloadable report, one-time, no subscription. See what's included
COASTLINE BOAT BLDRS HIN FAQ
What does a COASTLINE BOAT BLDRS HIN look like?
It starts with the three characters "XAV" — the Manufacturer Identification Code the US Coast Guard assigned to COASTLINE BOAT BLDRS — followed by a 5-character hull serial and a 4-character date code, 12 characters total. COASTLINE BOAT BLDRS hulls (1972–1981) predate the current HIN format — expect the legacy straight-year (MMYY) or model-year (M + year + month letter) date codes used 1972–1984.
Is COASTLINE BOAT BLDRS still in business?
USCG records list COASTLINE BOAT BLDRS as out of business since 1981. 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 COASTLINE BOAT BLDRS HIN?
On current-format HINs the last two characters are the model year and the 9th–10th encode the certification month and year. COASTLINE BOAT BLDRS hulls (1972–1981) 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.
Where is the HIN on a COASTLINE BOAT BLDRS boat?
On the outside upper-starboard (right) corner of the transom, within two inches of the top — required by 33 CFR 181.29. Since August 1984 an identical duplicate HIN is also molded into an unexposed interior location as an anti-theft measure. Both should match the title, registration, and insurance card exactly.
Is the "XAV" MIC the same as a COASTLINE BOAT BLDRS serial number?
No. "XAV" is the Manufacturer Identification Code — characters 1–3 of the HIN — that identifies COASTLINE BOAT BLDRS. The hull serial number is characters 4–8: COASTLINE BOAT BLDRS's own production number for that specific boat (the letters I, O, and Q are never used). The full 12-character HIN combines the MIC, the serial, and the date code.
Can a COASTLINE BOAT BLDRS HIN tell me the exact model?
Not on its own. A HIN encodes the builder, hull serial, certification month/year, and model year — not the model name or length. Match the decoded year and serial against COASTLINE BOAT BLDRS records, the title, or a marine survey to confirm the exact model and configuration.
Other builders in FL
Sources: verified against the USCG Manufacturer Identification Code database (refreshed monthly) · HIN format per 33 CFR Part 181, Subpart C. Reviewed by Sam Reynolds, Lead Researcher, CarWhere. Cite this page: CarWhere, "COASTLINE BOAT BLDRS HIN Decoder," carwhere.com/hin-decoder/xav, last verified 2026-06-15.