Sundown Boat Works — HIN at a glance
| Manufacturer | Sundown Boat Works |
|---|---|
| Also known as | Sha-Mar Boat MFG (Oob 78) |
| City | Gold Beach |
| State | Oregon |
| Country | United States |
| MIC code | SDU |
| HIN format | USCG (12 characters) |
| Status | Active |
| Boat types | Open motorboat |
Decode a Sundown Boat Works HIN
Paste any HIN starting with SDU — we'll decode the serial number, build month, build year and model year instantly.
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About the USCG HIN format
Sundown Boat Works is registered with the US Coast Guard and stamps a standard 12-character Hull Identification Number on every vessel produced for the US market. The format breaks down as:
SDU NNNNN M Y YY └┬┘ └──┬──┘ │ │ └┬┘ │ │ │ │ └─ Model year (last two digits) │ │ │ └──── Production year (last digit, 1972 standard) │ │ └────── Production month (A=Jan, B=Feb ... L=Dec, skipping I) │ └──────────── Hull serial number (alphanumeric) └─────────────── MIC: Manufacturer Identifier Code (SDU)
Federal regulation 33 CFR § 181 requires every US-built or imported recreational vessel to display this HIN permanently on the upper starboard side of the transom, and a duplicate HIN in a hidden location inside the hull.
Other Oregon boat manufacturers
- Outback Fabrication (
AAM) - The American Dream Trailer Company LLC (
ADT) - Aluminations (
ALN) - Quality Equipment Sales (
APQ) - Almar (Dba) (
AUC) - Alumaweld Boats (
AWB) - Applegate Boatworks (
AXX) - Bess Boat (
BBE) - Backwoods Boats And Fabrication LLC (
BBF) - Boice Built Boats INC (
BBU) - Breaker Dory INC (
BDI) - Koffler Boats INC (
BKA)
Frequently asked questions
What is the MIC code for Sundown Boat Works?
Sundown Boat Works is assigned USCG Manufacturer Identifier Code (MIC) SDU. All Sundown Boat Works boat HINs begin with these three characters.
How long is a Sundown Boat Works HIN?
Sundown Boat Works uses the US HIN format: 12 characters total. The first 3 are the MIC, followed by 5 serial-number characters, 1-letter month, 1-digit year, and 2-digit model year.
Is Sundown Boat Works still in business?
Sundown Boat Works is currently listed as active in the US Coast Guard MIC database (last published October 2019). Even out-of-business manufacturers' HINs remain valid identifiers for the boats they built.