CV Performance
Improving the Performance of your Harley Motorcycle

Xtreme Sport Spark Plug XS4164

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Retail: $12.95
Price: $9.75
You Save: $3.20 (24.7%)
Availability: Discontinued notify me

    The Autolite Xtreme Sport® Spark Plug features a platinum finewire tip that helps with easy starting, reduces fouling of the spark plug, and ensures longer performance.

    Designed with iridium-enhanced 0.6mm finewire for improved ignitability, faster fuel combustion and a more focused ignition versus standard plugs. They also provide up to 26 percent quicker starts compared to that of standard plugs and as much as 21 percent less hydrocarbon emissions than standard plugs, which promotes better fuel efficiency and horsepower.

    Replaces HD 6R12, Harley 32317-86A on Twin Cam and Sportster models.

    Spark plugs sold each.


    Twin Cam 88/96/103 1999-present
    XL Sportster 883/1200 1986-present

    Pictured product appearance is subject to change.

    As a manufacturer and supplier we are unable to provide any repair or diagnostic advice. Please consult a factory service manual or qualified motorcycle technician.