Shop by Brand Yamaha OutboardCylinder Head Back Cylinder Head Cover 6B4-11111-00-1S Viewer:298 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 6H3-11111-01-1S Cylinder Head 6E7-11111-01-1S Gasket, Cylinder Head 27-13709T/13709T O-Ring 25-36318/36318