Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 688-11631-02 STD Viewer:1036 OEM No. : 688-11631-02-STD For YAMAHA Outboard 55, 85 HP You May Also Be Interested In Piston Kit 6F6-11636-00 0.05 Piston Ring 688-11604-A0-00 0.25 Key 28-803749/803749 Bush 43711-97E00-000