Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 688-11631-02 STD Viewer:1014 OEM No. : 688-11631-02-STD For YAMAHA Outboard 55, 85 HP You May Also Be Interested In Piston Kit 69L-11635-00 0.25 Piston Kit 6R5-11646-01 0.50 Gasket, Upper Casing 6G8-45113-A0-00 Oil Seal 350-01215-0/350012150M/350-01215-1/350012151M