Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 647-11610-20 0.50 Viewer:789 OEM No. : 647-11610-20-0.50 For YAMAHA Outboard 8 HP You May Also Be Interested In Piston Kit 6K5-11636-03 0.50 Piston Ring 6E5-11610-20 0.50 Coil Pulser 63V-85580-00-00/63V-85580-01-00 Gear Assembly, Starting 688-81807-12