Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6F5-11610-10/6F6-11610-10 0.25 Viewer:880 OEM No. : 6F5-11610-10/6F6-11610-10-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 64D-11631-00 STD Piston Kit 682-11631-00 STD Roller, Wire 663-15752-00-00 Connecting Rod 12160-93902/12161-93902-000