Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 647-11610-20 0.50 Viewer:808 OEM No. : 647-11610-20-0.50 For YAMAHA Outboard 8 HP You May Also Be Interested In Piston Kit 64D-11636-00 0.50 Piston Ring 61N-11603-00-00 STD Float 369-03231-0/369032310M Piston Ring 12140-93140-025 0.25