Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 688-11631-81 STD Viewer:1114 OEM No. : 688-11631-81-STD For YAMAHA Outboard 75 HP You May Also Be Interested In Piston Pin 6H3-11633-00-00 Piston Kit 676-11631-60 STD Inner Plate, Cartridge 670-44321-00-00 Pinion Gear 6E5-45551-00/6E5-45551-01/6E5-45551-02-00(13T)