This offer is for a set of (8) FORD - MOTORCRAFT Spark Plugs SP546. Please check Compatibility chart above to make sure your vehicle is listed.To review the notes column for important details and/or restrictions pertaining to your vehicle's. Particular model and engine size. More Information for MOTORCRAFT SP546. The Finewire Platinum spark plug, 08u9 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. This item is in the category "eBay Motors\Parts & Accessories\Car & Truck Parts & Accessories\Ignition Systems & Components\Spark Plugs". The seller is "victorylaneparts" and is located in this country: US. This item can be shipped worldwide.