Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 676-11610-20 0.50 Viewer:820 OEM No. : 676-11610-20-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 6R5-11636-01 0.50 Piston Kit 6D0-11636-00 0.50 Fuel Filter 5GH-13440-00-00 Impeller 377178/0377178