Description:

[Vehicle Fitment]: Compatible with Ford Mustang 1999 V8 4.6L (DOHC), For Mustang 2001 V8 4.6L (DOHC), Mustang 2003-2004 V8 4.6L; Compatible with Lincoln Blackwood 2002 V8 5.4L, Aviator 2003-2005 V8 4.6L, Continental 1998-2002 V8 4.6L, Mark VIII 1997-1998 V8 4.6L, Navigator 1999 V8 5.4L (DOHC), Navigator 2000-2004 V8 5.4L; Compatible with Mercury Marauder 2003-2004 V8 4.6L. [Reference Number]: UF-191, UF191, F7LZ12029AD, NGK5118, 3403. [Specifications]: Coil Terminal Quantity: 2; Terminal Type: Blade; Mount Type: Bolt On; Mounting Location: Valve Cover; Voltage: 12V; Spark Plug Material: Iridium. [Iridium spark plug]: Iridium is a type of refined alloy which is highly suitable to be used as the materials of the central electrode in a spark plug. It extends the life of the spark plug nearly threefold, ensures a more stable idle speed of the engine, and delivers a super performance to the engine with improved fuel efficiency, reduced emissions and faster starting up..