Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 689-11635-00 0.25 Viewer:920 OEM No. : 689-11635-00-0.25 For YAMAHA Outboard 30 HP You May Also Be Interested In Piston Kit 656-11631-60 STD Piston Kit 6J8-11631-02 STD Lower Unit Gasket Kit 6G5-W0001-21-00 Piston Pin 12151-97500-000