Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 647-11610-10 0.25 Viewer:788 OEM No. : 647-11610-10-0.25 For YAMAHA Outboard 8 HP You May Also Be Interested In Piston Ring 656-11610-22 0.50 Piston Kit 689-11631-60 STD Piston Kit 12110-95512-025 0.25 Gasket, Cylinder Head 11141-95600