This genuine Yanmar V-belt is used to drive the impeller pump / raw water pump on selected Yanmar YM series engines.
A worn or slipping impeller pump belt can cause poor raw water circulation, overheating, belt noise or visible belt wear. Replace the belt during service or when signs of cracking, glazing or slipping are visible.
Always check the engine model and serial number before ordering.
Compatible engines
Yanmar 2YM15 Yanmar 3YM20
Important compatibility notes
Suitable for Yanmar 2YM15 from serial number E6836 . Suitable for Yanmar 3YM20 from serial number E13046 .
For engines with a lower serial number, use part number 104511-78780E instead.
Product data
Brand Yanmar
Condition New
Product type Service part
Part category Belts
Belt type V-belt
Part number 128990-77350E
Engine series YM series
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