Click on the grey headings to sort table by column.
Names struck out designate an engine's original provenance prior to removal for display.
| Model | Serial | Engine | Bore | Stroke | Cyl's | HP | RPM | Owner | Type | Currently | State |
|---|---|---|---|---|---|---|---|---|---|---|---|
| 6-10 | 7342 | Catalyst | 8 | 10 | 6 | 120 | 450 | Pacific Catalyst II Inc | research vessel | charter | Washington |
| 3-115 | 7372 | 9 | 11.5 | 3 | 80 | 360 | unknown | fishboat | derelict | Washington | |
| 2-125 | Wakefield Cannery | 9 | 12-1/2 | 2 | 60 | 400 | unknown | marine | derelict | Alaska | |
| 3-125 | 7153 | 9 | 12-1/2 | 3 | 90 | 400 | Kodiak Maritime Historical Society | generator | museum display | Alaska | |
| 4-125 | 7274 | Waterfall #4 | 9 | 12-1/2 | 4 | 120 | 400 | Waterfall Resort | generator | generator | Alaska |
| 6-125 | 9 | 12-1/2 | 6 | 180 | 400 | PSATMA | generator | museum display | Washington | ||
| 6-125 | 7167 | Simpson Yarder | 9 | 12-1/2 | 6 | 180 | 400 | Roots Of Motive Power | logging yarder | display | California |
| 6-125 | 7254 | West Fork Yarder | 9 | 12-1/2 | 6 | 180 | 400 | Timber Heritage Association | logging yarder | display | California |
| 6-125 | 7524 | new WIW | 9 | 12-1/2 | 6 | 180 | 400 | Northwest Marine Propulsion Museum | propulsion | display | Washington |
| 3-13 | 7202 | David B | 10-1/4 | 13-1/2 | 3 | 120 | 360 | Northwest Navigation Co | cannery tender | charter | Washington |
| 6-15 | 7594 | Ruby XIV | 11-1/2 | 15 | 6 | 300 | 327 | Northwest Marine Propulsion Museum | tugboat | museum vessel | Washington |
| 4-13 | 7426 | Fearless | 10-1/4 | 13-1/2 | 4 | 160 | 360 | Western Towboat | tugboat | towing | Washington |
| 4-125 | San Juan | 10 | 12-1/2 | 4 | 135 | 360 | Bruce Abernathy & Rex Gresham | cannery tender | fishboat & yacht | California | |
| 6-13 | 7520 | Katahdin | 10-1/4 | 13-1/2 | 6 | 240 | 360 | Doug Leen | tugboat | yacht | Alaska |
| 4-160 | 7162 | 10-3/4 | 16 | 4 | 150 | 280 | Waimea Sugar Mill Camp | generator | museum display | Hawaii | |
| 6-160 | 7495 | Donald Robert | 12-3/4 | 16 | 6 | 465 | 400 | Buzz Dana | tugboat | yacht | Washington |
| 6-24 | 7347 | Arthur Foss | 18 | 24 | 6 | 700 | 180 | Northwest Seaport | tugboat | museum vessel | Washington |