Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 6G0-11635-00 0.25 Viewer:883 OEM No. : 6G0-11635-00-0.25 For YAMAHA Outboard 20, 25 HP You May Also Be Interested In Piston Ring 688-11610-20 0.50 Piston Kit 6G0-11636-00 0.50 Drive Shaft - L 6B4-45501-10 Oil Seal 309-00121-0/309001210M