Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 646-11631-01 STD Viewer:1282 OEM No. : 646-11631-01-STD For YAMAHA Outboard 2 HP You May Also Be Interested In Piston Kit 6G0-11631-00 STD Piston Kit 6F5-11636-00 0.50 Bearing 93332-00001-00 Bearing 93310-418V1-00