Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 656-11631-60 STD Viewer:1609 OEM No. : 656-11631-60-STD For YAMAHA Outboard 20, 25 HP You May Also Be Interested In Piston Ring 647-11610-00-00 STD Piston Kit 61N-11635-00 0.25 Gasket, Upper Casing 6K5-45113-00/6K5-45113-A0 Gasket, Cylinder Head 3F3-01005-0/3F3010050M Watch Our Product Videos