Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11631-60 STD Viewer:926 OEM No. : 676-11631-60-STD For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Pin 6H3-11633-00-00 Piston Kit 6R5-11642-01 STD Thermostat 6E5-12411-30-00 Gear, Knee 682-42142-00-00/682-42142-01-00