Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 679-11636-00 0.50 Viewer:814 OEM No. : 679-11636-00-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 61N-11636-00 0.50 Piston Kit 6K5-11631-03 STD Fuel Filter 35-16494/16494 Washer 12-161402/161402