Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Ring 6F5-11610-10/6F6-11610-10 0.25 Viewer:889 OEM No. : 6F5-11610-10/6F6-11610-10-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 6R5-11635-01 0.25 Piston 6L2-11635-00-00 0.25 Gasket Pump Case 17472-92D10 Bearing 9603-3-6204/960336204M