Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 6G0-11631-00 STD Viewer:909 OEM No. : 6G0-11631-00-STD For YAMAHA Outboard 20, 25 HP You May Also Be Interested In Piston Kit 6J8-11636-02-00 0.50 Piston Kit 6H4-11636-09 0.50 Gasket 27-822189/822189 Bearing 09263-18011-000