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

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
WakeParts normalized boat taxonomy — retrieved 2026-07-24T00:00:00Z · WakeParts · source
UNECE Recommendation 28 — retrieved 2026-07-24T00:00:00Z · United Nations Economic Commission for Europe · source

Brand ladder

Caterpillar inc.

1,398 part identities · 75 engine_model vs 177 catalogue avg

Mercury Marine

895 part identities · 2,664 engine_model vs 177 catalogue avg

MTU Detroit Diesel, Inc.

568 part identities · 212 engine_model vs 177 catalogue avg

Yamaha Motor Company LTD.

479 part identities · 1,370 engine_model vs 177 catalogue avg

Honda Motor Co., Ltd.

476 part identities · 44 engine_model vs 177 catalogue avg

AB Volvo penta

467 part identities · 258 engine_model vs 177 catalogue avg

Cummins Inc.

463 part identities · 63 engine_model vs 177 catalogue avg

YANMAR CO.,LTD.

355 part identities · 191 engine_model vs 177 catalogue avg

All qualifying brands · Search · On-demand report

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.