New piston kit for a Yamaha SnoScoot. Piston is one size over stock. 0.25mm or 0.010" over stock bore.  This piston has been installed in many engines in the field without issue.

Please feel free to message with any questions, I am happy to provide exact piston measurements so you can buy with confidence!

Kit includes piston, rings, piston pin, and circlips. 

Standard Yamaha OE pn 3M8-11631-01-96  

3M8-11631-01-00 Yamaha OE 2nd over part number