The Champion 810 Spark Plug (RA8HC) is an OEM-style copper-core plug built for Harley-Davidson motorcycles, offering consistent ignition, excellent heat transfer, and strong performance in air-cooled V-twin engines.

Features & Benefits:

🔧 Copper core enhances spark efficiency and thermal conductivity 🔧 Resistor design reduces RFI interference and improves performance 🔧 Built to handle vibration and extreme engine heat 🔧 Designed for compatibility with Harley-Davidson V-twin engines

Specifications:

Brand & Part Number: Champion 810 RA8HC Material: Copper Thread Size: 12mm Reach: 19mm (0.75 in.) Hex Size: 5/8 in. (16mm) Seat Type: Gasket Resistor: Yes Gap: 0.040 in. (1.0mm)

Choose Champion RA8HC for smooth starts, consistent power, and dependable performance in your Harley-Davidson—order now!