- Fits 1999-2004 4.6L/5.4L DOHC 4V
- Factory replacement
The housing and installation of our Ford Blaster Coil-on-Plugs are the same as the factory, but that's where the similarity ends. Inside the MSD red housing, engineers spec'd better material to assemble the primary and secondary windings. The Coil-on-Plug design puts the spark energy right out of the coil and across the plug gap to improve the combustion and output of the engine.