CV Performance
Improving the Performance of your Harley Motorcycle

Spark Plug Harley RA8HC 6R12

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Retail: $8.00
Price: $4.95
You Save: $3.05 (38.1%)
Availability: Out of Stock

    Champion Copper Plus® spark plugs are a great choice for your Harley Twin Cam or Sportster and are the OE-replacement for the stock 6R12 factory plug. 

    • The Champion copper plus spark plug features a copper core electrode that provides increased conductivity and heat control while delivering good overall wear characteristics
    • Provides longer life; Copper core center electrode allows for accurate control of the plug's heat range, optimizing the plug's performance and adding to the longevity of the spark plug
    • Engineered to exceed OE designs
    • Maximum durability and dependable performance
    • Fits Twin Cam, all models & Sportster all models 1986/Later. Replaces HD 6R12, Harley 32317-86A

    Spark plugs sold each.


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



    Note that appearance of all products are subject to change. 
    As a manufacturer and supplier we are unable to provide repair or service advice. Please consult a factory service manual or a qualified motorcycle technician when working on your motorcycle.