Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6F5-11610-10/6F6-11610-10 0.25 Viewer:878 OEM No. : 6F5-11610-10/6F6-11610-10-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Ring 61U-11601-20 0.50 Piston Ring 6R5-11603-00-00 STD Sleeve, Drive Shaft 688-45536-01-00 Gasket, Upper Oil Seal Housing 11413-94400-000/11413-94411-000