Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 677-11631-00-97 STD Viewer:889 OEM No. : 677-11631-00-97-STD For YAMAHA Outboard 8 HP You May Also Be Interested In Piston Pin 663-11633-00-00 Piston Kit 689-11635-00 0.25 Gasket Kit 697-W0001-00-00/697-W0001-A0-00 Piston Ring 66T-11605-00 0.50