Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 662-11631-01 STD Viewer:1418 OEM No. : 662-11631-01-STD For YAMAHA Outboard 9.9, 15 HP You May Also Be Interested In Piston Kit 689-11635-60 0.25 Piston Ring 656-11610-22 0.50 Piston Kit 64D-11645-00 0.25 Battery Cable 6H3-82105-00-00 Watch Our Product Videos