Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 656-11631-60 STD Viewer:1420 OEM No. : 656-11631-60-STD For YAMAHA Outboard 20, 25 HP You May Also Be Interested In Piston Kit 64D-11636-00 0.50 Piston Pin 6F5-11633-00 Gear 6J9-45571-00-00(28T) Forward Gear 43-8129442/8129442(24T)