Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 646-11631-01 STD Viewer:1297 OEM No. : 646-11631-01-STD For YAMAHA Outboard 2 HP You May Also Be Interested In Piston Kit 6G0-11636-00 0.50 Piston Kit 682-11635-00 0.25 Shim Set 15-884328A01/884328A01 Drive Shaft- UL 350-64303-0/350643030M