Motorcraft

SP-520

Motorcraft SP-520 Spark Plug

EAN: 0031508562363

UPC: 031508562363

Spark Plugs

Finewire Double Platinum
Same part installed when the engine rolled off the assembly line
100,000-mile service interval
Iridium-enhanced center electrode for improved durability and wear resistance

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.

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