| Model # | Bore & Stroke | Cylinders | HP | RPM | Current Use |
|---|---|---|---|---|---|
| DSL-3, DMM-3, DSM-3 | 8 x 10 | 3 | 50-120 | 400-700 | |
| DSL-4, DMM-4, DSM-4 | 8 x 10 | 4 | 90-160 | 400-700 | |
| DSL-6, DMM-6, DSM-6, DMM-36, DSM-36 |
8 x 10 | 6 | 100-400 | 400-750 | fireboat Governor Alfred E. Smith |
| DSX-4 | 101/2 x 12 | 4 | 120-210 | 300-514 | |
| DSX-6 | 101/2 x 12 | 6 | 180-510 | 300-850 | |
| DSX-8 | 101/2 x 12 | 8 | 120-210 | 240-680 | |
| DSW-4 | 10 x 13 | 4 | 120-185 | 300-450 | |
| DSW-6, DMW-6 | 10 x 13 | 6 | 170-260 | 300-450 | tugboat Sound Vista Antique Gas & Steam Engine Museum |
| DMG-6 DMG-26 DMG-36 |
12 x 15 | 6 | 273-1041 | 250-600 | tugboat Angeles fish packer Barron Island tugboat Briana Marin fish packer Cape Scott tugboat J.S. Polhemus tugboat John Knox fireboat John D. McKean fireboat Mighty tugboat Oil King tugboat Oswell Foss yacht USS Potomac (port) yacht USS Potomac (starboard) tugboat Tagish |
| DMG-8, DMG-28, DMG-38 |
12 x 15 | 8 | 500-700 | 400-600 | tugboat Chief tugboat El Captain Reino Mattila tugboat Sea Lion VI |
| DSG-6, DSG-36 | 12 x 15 | 6 | 273-1041 | 250-600 | |
| DSG-8, DSG-38 | 12 x 15 | 8 | 364-1388 | 250-600 | |
| DSQ-5 | 16 x 20 | 5 | 375-625 | 200-327 | |
| DMQ-6, DMQ-26, DMQ-36 DSQ-6, DSQ-36 |
16 x 20 | 6 | 450-1481 | 200-600 | |
| DSQ-7 | 16 x 20 | 7 | 525-1125 | 200-420 | |
| DMQ-8, DSQ-8, DMQ-28, DMQ-38, DSQ-38 |
16 x 20 | 8 | 600-1290 | 200-420 |
tugboat Dominion tugboat Edward H tugboat Jericho Chief tugboat Lake Superior tugboat Maris Pearl tugboat Nash tugboat Red Cloud tugboat Sakarissa tugboat Sea Lark |
| DSQ-9 | 16 x 20 | 9 | 675-1450 | 200-420 | |
| DSQ-10 | 16 x 20 | 10 | 750-1600 | 200-420 | |
| R5-V16 | 16 | 17,000 | TS Golden Bear (3) |