( driverside )  Left Rocker Arm Cover Gasket is a direct fit for the following:

THESE ONLY FIT THE 9 BOLT VALVE COVERS 

2005-2014 Ford Expedition
2007-2010 Ford Explorer
2007-2010 Ford Explorer Sport Trac
2004-2010 Ford F-150
2005-2010 Ford F-250 Super Duty
2005-2010 Ford F-350 Super Duty
2005-2010 Ford F-450 Super Duty
2005-2010 Ford F-550 Super Duty
2007-2010 Ford Mustang
2010, 2006-2008 Lincoln Mark LT
2005-2014 Lincoln Navigator
2007-2010 Mercury Mountaineer

Genuine Ford Part Number: 7L1Z-6584-B