Marine engine parts identity register

Workshop drawing of EPA marine certification part numbers, collapsed to one identity per brand and part number. Public-domain certification data, not an aftermarket catalogue.

EPA
DWG A1
sheet 1

EPA rows

94,237

no change vs previous snapshot

Collapsed PN (string-sum)

11,317

no change vs previous snapshot

Brands on the ladder (≥ 50 PN)

Catalogue avg engine_model

177

See the subject

Start with the engine identity

The manufacturer and complete model designation on an identification plate are useful starting points for finding the right record. Keep model, engine family and serial number distinct: a similar name is not proof that a part fits.

Outboard motor identification plate showing manufacturer, model and rated power. — Example identification plate on a Tohatsu MFS9.8A3 outboard motor; the serial number is obscured in the source photograph. Image: PtiBzh · CC0. Resized and converted to WebP.

Ingest / pull dates (not “as of today”). Snapshot date 2026-07-24. Deploy-time hub snapshot generated 2026-08-24T13:34:00Z.

Wikidata boat manufacturers — retrieved 2026-07-24 · Wikimedia Foundation and contributors · source
EPA Marine CI models and parts archive — retrieved 2026-07-24 · U.S. Environmental Protection Agency · source
EPA Marine SI models and parts archive — retrieved 2026-07-24 · U.S. Environmental Protection Agency · source
EPA current marine engine certification data — retrieved 2026-07-24 · U.S. Environmental Protection Agency · source
Federal manufacturer identification directory — retrieved 2026-07-24 · U.S. Coast Guard · source
Manufacturer manuals and parts catalogs — retrieved 2026-07-24 · Individual boat and engine manufacturers · source
Live eBay listings — retrieved 2026-07-24 · eBay · source
Sea Ray model specifications — retrieved 2026-07-24T00:00:00Z · Sea Ray · source
Bayliner model specifications — retrieved 2026-07-24T00:00:00Z · Bayliner · source
Boston Whaler model specifications — retrieved 2026-07-24T00:00:00Z · Boston Whaler · source
Wikidata boat-type entities — retrieved 2026-07-24T00:00:00Z · Wikimedia Foundation and Wikidata contributors · source
Merchant Vessels of the United States — retrieved 2026-07-24T00:00:00Z · United States Coast Guard · source
Marine Parts Directory normalized boat taxonomy — retrieved 2026-07-24T00:00:00Z · Marine Parts Directory · source
UNECE Recommendation 28 — retrieved 2026-07-24T00:00:00Z · United Nations Economic Commission for Europe · source

EPA files are a certification archive, not an aftermarket catalogue. No prices. No invented fitment. Rights fail closed via data_sources.usage_mode. No maps. No SKU sitemap farm.

Data last collected: 24 July 2026 · Data last rechecked: 28 August 2026 at 18:04 UTC

Marine engine parts identity register

Start with the engine identity

Brand ladder

Caterpillar inc.

Mercury Marine

MTU Detroit Diesel, Inc.

Yamaha Motor Company LTD.

Honda Motor Co., Ltd.

AB Volvo penta

Cummins Inc.

YANMAR CO.,LTD.

Candidate parts evidence layers