Autolite AL-4164 Spark Plug for Twin Cam 99-17/Sportster 86-21 & S&S 124ci/Victory (Each)
Autolite AL-4164 Spark Plug for Twin Cam 99-17/Sportster 86-21 & S&S 124ci/Victory (Each) is backordered and will ship as soon as it is back in stock.
Copper Core Spark Plug
Sold Each
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.
* Replaces OEM # 31600105
* Replaces OEM # 31600106
* Replaces OEM # 32317-86
* Replaces OEM # 32362-04A
(Part Numbers: ROL-AL-4164)
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