Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6F5-11610-20/6F6-11610-20-0.50 Viewer:815 OEM No. : 6F5-11610-20/6F6-11610-20-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 6R5-11645-01 0.25 Piston Pin 6K7-11633-00-00 Tilt Trim Motor 438786/0438786 Piston Kit 2704-821896A3/821896A 3 0.015