Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 656-11631-60 STD Viewer:1386 OEM No. : 656-11631-60-STD For YAMAHA Outboard 20, 25 HP You May Also Be Interested In Piston Ring 6G0-11610-10 0.25 Piston Pin 688-11633-00 Crank Pin 12211-94410-000 Coil Ignition 3M3-06048-2/3M3060482M