Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6F5-11610-10/6F6-11610-10 0.25 Viewer:868 OEM No. : 6F5-11610-10/6F6-11610-10-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Ring 689-11610-10/689-11610-11 0.25 Piston Kit 69L-11646-00 0.50 Gear 6D9-45560-10-00(25T) Lower Unit Gasket Set 346-87321-6/346873216M