Seller notes

Replacement NGK Spark Plugs for 1999+ Harley Davidsons Description NGK 3932 spark plugs are a great choice for your Harley Twin Cam or Sportster and are the OE-replacement for the stock 6R12 factory plug. Engineered to exceed OE designsMaximum durability and dependable performanceFits Twin Cam, all models & Sportster all models 1986/Later. Replaces HD 6R12, Harley 32317-86A Features & BenefitsAsk for NGK Standard spark plugs, OE approved and recommended for reliable performance for most automoti...

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