Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 689-11636-60 0.50 Viewer:866 OEM No. : 689-11636-60-0.50 For YAMAHA Outboard 25, 30 HP You May Also Be Interested In Piston Kit 6E0-11631-00-98 STD Piston Kit 679-11635-00 0.25 Gasket, Head Cover 6E9-11193-A0-00 O-Ring 93210-60M99-00