Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 688-11635-02 0.25 Viewer:907 OEM No. : 688-11635-02-0.25 For YAMAHA Outboard 55 HP You May Also Be Interested In Piston Kit 6R5-11635-01 0.25 Piston Kit 61A-11636-00/61A-11636-01 0.50 Propeller Shaft 676-45611-00 Oil Seal, S-Type 93101-11M44-00