Champion 809 Copper Plus Resistor Spark Plug

The Champion 809 Copper Plus spark plug delivers reliable ignition performance for a wide range of automotive applications. Engineered with a copper core center electrode, this spark plug provides precise heat range control to optimize engine performance and extend plug life.

Key Features:

• Copper core center electrode for superior heat dissipation and thermal conductivity
• Patented SAC-9 semi-conductor resistor provides maximum suppression of electromagnetic interference (EMI) and radio frequency interference (RFI)
• Patented Ultraseal corrosion-resistant coating on shell prevents rust and seizing
• 14mm thread diameter for broad compatibility
• Resistor design protects sensitive electronic components and reduces ignition system noise

Champion Copper Plus spark plugs are designed to meet or exceed OEM specifications, making them an excellent choice for reliable replacement and performance maintenance. The copper core construction ensures consistent firing and helps prevent misfires across various operating conditions.