The Harley-Davidson Gold Spark Plugs 10R12X 27794-08 are an essential upgrade for your motorcycle's performance. Featuring a gold palladium insert, these spark plugs offer extended life and improved resistance to corrosion. The special thread and shell coating ensure quick and easy removal from aluminium heads and provide exceptional resistance to corrosion. Each plug is sold separately, making it easy to purchase the exact quantity you need for your motorcycle.

One of the key benefits of these spark plugs is the tapered tip, which provides better spark exposure to the air/fuel mixture. This design allows the mixture to flow more easily through the gap area, promoting maximum combustibility and enhancing your motorcycle's performance. Additionally, the smaller diameter centre electrode wire and insulator tip improve fouling resistance, ensuring consistent and reliable spark ignition.

The copper-cored ground electrode runs cooler, contributing to extended plug life and optimal engine performance. With an anti-seize coating on the threads, these spark plugs are easy to install and remove, making maintenance hassle-free. Whether you're a motorcycle enthusiast or a professional rider, these spark plugs are designed to meet the high standards of Harley-Davidson quality and performance.

Gold palladium insert extends life and improves resistance to corrosion

Tapered tip provides better spark exposure to air/fuel mixture and allows the mixture to flow more easily through gap area for maximum combustibility

Fouling resistance is improved with smaller diameter centre electrode wire and insulator tip

Copper-cored ground electrode runs cooler for extended life

Anti-seize coating on threads

Each sold separately

10R12X