Bosch Copper with Nickel Spark Plugs feature a yttrium enhanced nickel-copper center electrode for a longer lasting service life compared to standard copper plugs. Additional features include a copper core that provides better heat transfer for resistance to pre-ignition, metal glass fused resistor that maximizes interference suppression, ribbed insulator design that prevents misfire due to current leakage, and nickel plated rolled threads that provide superior resistance to deterioration. Nickel plated threads eliminate the need for anti-seize, ensuring easy installation and removal. Engineered to meet or exceed Original Equipment specifications for nickel-copper core spark plugs.
Bosch Automotive