Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 682-11635-00 0.25 Viewer:828 OEM No. : 682-11635-00-0.25 For YAMAHA Outboard 9.9, 15 HP You May Also Be Interested In Piston Kit 689-11635-00 0.25 Piston Pin 677-11633-00-00 Seal, Labyrinth 656-11515-00-00 Fuel Pipe Complete 6Y1-24306-53-00