For riding mowers & larger outdoor power equipment, resistor type to suppress radio interference. Replaces original equipment spark plug RC12YC, Stock #71-1.
- Champion Copper Plus
- Dependable performance as the OE replacement spark plug
- Provides long life with the copper core center electrode
- Allow accurate control of heat range
- Optimize performance and longevity
- RFI & EMI suppression to not interfere with modern ignition systems
