Coil-on-plug units on the 2-valve modular Fords sit right on top of the plug and cook, and a failing one throws a misfire code on that cylinder. This is a single direct replacement coil for 1998-2014 4.6L and 5.4L applications, so you can replace just the bad one and keep going.

MSD 82425 Blaster Series Ignition Coil Features:

• Single coil, sold individually.
• Direct bolt-in replacement using factory mounting and connectors.
• Two male terminals, 12 volt operation.
• C.A.R.B. E.O. number D-40-42.
• Blue housing, also available in red and black.
• Mounting hardware not included.

Emissions Note:

This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) # D-40-42

CLICK THIS LINK FOR IMPORTANT CARB & EPA EMISSIONS INFORMATION ABOUT THIS PART