Positive Battery Terminal Cover Cap is a direct fit for the following:

1998-2011 Ford Crown Victoria
1999-2010 Ford Explorer
1996-2007 Ford Taurus
1996-2004 Ford Mustang
1999-2003 Ford F-150
2004 Ford F-150 Heritage
1999 Ford F-250
1999-2003 Ford Ranger
1996-1997 Ford Thunderbird
1999-2002 Ford Expedition
1998-2011 Lincoln Town Car
1998-2002 Lincoln Navigator
1999-2011 Mercury Mountaineer
1998-2004 Mercury Grand Marquis
1996-2005 Mercury Sable
1996-1997 Mercury Cougar
2004 Mercury Marauder

Genuine Ford Part Number: XF1Z-14277-AA