8 Spark Plugs & Coils FORD Motorcraft OEM # SP546 PZT14F DG511 5.4 V8

This offer is for a set of (8) FORD - MOTORCRAFT Spark Plugs SP546 & 8. Please check Compatibility chart above to make sure your vehicle is listed. For all 2008 models, these will only fit cars with Black Coil boots.

The Finewire Platinum spark plug was designed to improve electrode wear beyond the capability of the Single Platinum spark plug. The quantity of platinum is 2 to 3 times greater than the Single Platinum plug and its thin cylindrical shape serve to reduce the required firing voltage.

This results in diminished erosion of the platinum and robustness against fouling. Alternate/OEM Part Number(s): PZT14F, PZT1F, PZT2F, PZT2FF4, SP421, SP462, SP507, SP515. More Information for Spectra Premium Coils.

Spectra Premium ignition coils are designed and produced under a strict TS16949 quality control process. 100% copper base in both primary and secondary windings. Windings insulated by high voltage enamel coating. Long cycle thermal shock tested. COP (Coil On Plug Ignition). Coil Wire Terminal Attachment Type. Alternate/OEM Part Number(s): 3L3Z12029BA.

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