Autolite Copper Resistor Spark Plug Fits select: 1998-2003 FORD F150, 2001-2003 FORD RANGER

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration, Autolite Copper Core spark plugs are designed to meet or exceed OES design requirements. Consider upgrading to Autolite Platinum, Double Platinum or Iridium XP plugs for improved engine performance. Copper core plugs are the industry standard.

Autolite Copper Resistor Spark Plug Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof) Multi-rib insulator reduces danger of "flash-over" One-piece terminal post adds strength Resistor reduces radio frequency interference (RFI) and electrode erosion Electrode Tip Material : Resistor Reach : .708 In Resistor : Suppressor Seat Type : Tapered Thread Diameter : 14 mm Tip Configuration : Power Wrench Diameter : 5/8 In Fits Select: 1998-2003,2005-2008 FORD F150 6 Cyl 4.2 L 2001-2003,2006-2008 FORD RANGER 6 Cyl 4 L 2003-2004 FORD FOCUS 4 Cyl 2 L 2000-2002 FORD FOCUS 2004 FORD F-150 HERITAGE 6 Cyl 4.2 L 1988-1990,1997-2002 FORD ESCORT 2006-2007 FORD FREESTAR 6 Cyl 4.2 L 1998-2003 FORD ECONOLINE 6 Cyl 4.2 L 1986-1987,1991-1996 FORD ESCORT 4 Cyl 1.9 L 2006-2007 MERCURY MONTEREY 1997-1999 MERCURY TRACER 2001-2007 MAZDA B4000 1983-1985 FORD ESCORT 4 Cyl 1.6 L 1984 FORD RANGER 4 Cyl 2.3 L 1989-1995 FORD THUNDERBIRD 6 Cyl 3.8 L 1991-1996 MERCURY TRACER 4 Cyl 1.9 L 1986-1987 MERCURY LYNX 4 Cyl 1.9 L 1983-1985 MERCURY LYNX 4 Cyl 1.6 L 1989-1990 MERCURY COUGAR 6 Cyl 3.8 L and more - add your vehicle to our fit widget to check