Autolite 65 Spark Plug. Fits Big Twin 1975-1999 & S&S Engines with 16mm Spark Plug Thread.

Copper Core Spark Plug

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Autolite Number: XS65

Traditional nickel electrodes. Copper core improves resistance to fouling. Power tip extends further into the combustion chamber to aid in self-cleaning, reducing fouling at low rpms and pre-ignition at high speeds.efficiency and horsepower.

* Replaces OEM # 32311-83