Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6F5-11610-20/6F6-11610-20-0.50 Viewer:792 OEM No. : 6F5-11610-20/6F6-11610-20-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Ring 6J1-11610-00-00 STD Piston Kit 6G5-11646-00 0.50 Gasket, Cylinder Head 328623/0328623 Bushing, Drive Shaft 6G1-45317-09-00