Shop by Brand Yamaha OutboardPiston/Piston Kit ; Piston Pin ; Piston Ring Back Piston Kit 6F6-11635-00 0.25 Viewer:871 OEM No. : 6F6-11635-00-0.25 For YAMAHA Outboard 40 HP You May Also Be Interested In Piston Pin 6H3-11633-00-00 Piston Kit 6J8-11635-02-00 0.25 Oil Filter 16510-61A31-000 Lockwasher 13-78968/78968