Yanmar Engine - YM Series
Completely redesigned cylinder block and new combustion system. Indirect injection, fresh water cooled with heat exchanger, this new engine line complies with ETA Tier 2 and BSO Tier 2. Electric stop solenoid is standard. This series includes the following engines:
| Engine | HP | Years In Production | Comments |
| 2YM15 | 14 | Late 2004 - Present | US Built |
| 3YM20 | 22 | Summer 2004 - Present | US Built |
| 3YM30 | 30 | Summer 2004 - Present | US Built |