Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 6F5-11636-00 0.50 Viewer:892 OEM No. : 6F5-11636-00-0.50 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Kit 6E0-11631-00-98 STD Piston Pin 662-11633-00 Reverse Gear 6D9-45571-10-00 Gasket 27-853987/853987