Shop by Brand Yamaha OutboardCylinder Head Back Cylinder Head Cover 6B4-11111-00-1S Viewer:293 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 6H3-11111-01-1S Thermostat 6G8-12411-01-00 Piston Ring 39-96170A4/96170A 4 0.030