- OEM Yamaha piston 820-11636-00, 68mm (68.30mm) diameter, 18mm pin
- Top marked with 610K 6850
- No rings included—piston only
- High-quality replacement for vintage Bravo, Exciter, Enticer, Excel snowmobiles
- Ideal for engine rebuilds, restoration, or replacing worn pistons
- SKU: ST-1, 21PIC-1982
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