4.0L SOHC Engine Valve Rocker Arm is a direct fit for the following:

1997-2007 Ford Explorer
2001-2003 Ford Explorer Sport
2001-2007 Ford Explorer Sport Trac
2005-2007 Ford Mustang
2001-2007 Ford Ranger

1998-2007 Mercury Mountaineer

With 4.0L Engine

Genuine Ford Part Number: YL2Z-6564-AA