Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 676-11636-00 0.50 Viewer:847 OEM No. : 676-11636-00-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 688-11631-81 STD Piston Ring 688-11610-20 0.50 O-Ring 93211-04001-00 Coil Pulser 63V-85580-00-00/63V-85580-01-00