Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6H4-11601-20 0.50 Viewer:901 OEM No. : 6H4-11601-20-0.50 For YAMAHA Outboard 40, 50 HP You May Also Be Interested In Piston Kit 6E7-11631-00-97 STD Piston Ring 63D-11605-00-00 0.50 Piston Ring 3G2-00014-0/3G2000140M 0.50 Handle Gear Shift 692-44120-21-00