- YM Series
- 3YM20 : 21 HP Summer 2004 - present
- 104511-78780 3YM20 starting serial #E00304
104511-78780 3YM20 starting serial #E00304
Raw water pump belt starting serial #E00304 for the 3YM20
We stock all of the standard Yanmar repair parts. If you don’t see what you’re looking for, please inquire about special ordering what you need. Parts that have to be special ordered may be subject to a restricted return policy. All prices & part numbers are subject to change. We Ship UPS ground, overnight, and second day air for your convenience.