Shop by Brand Yamaha OutboardCylinder Head Back Cylinder Head Cover 6B4-11111-00-1S Viewer:340 OEM No.: 6B4-11111-00-1S For YAMAHA outboard 9.9, 13.5, 15 HP & 2 Stroke You May Also Be Interested In Cylinder Head 6E7-11111-01-1S Cylinder Head Cover 6B4-11111-00-1S Piston Kit 6D0-11642-00 STD Gasket 626-45113-00