Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 61A-11645-00 0.25 Viewer:1292 OEM No. : 61A-11645-00-0.25 For YAMAHA Outboard 250 HP You May Also Be Interested In Piston Ring 6F5-11610-00-00/6F6-11610-00 STD Piston Kit 656-11631-60 STD Gasket, Thermostat 27-812867-1/812867 1 Zinc Anode 822157C2-ZN-MA