Bosch Automotive (7909) Copper with Nickel Spark Plug - Single
- Heavy-duty yttrium-enhanced copper core center electrode for superior reliability and increased resistance to spark erosion for a 50% longer performance life vs. even OE plugs.
- Tapered, v-profile nickel chromium ground electrodes improves cold start performance and increases fuel ignitability.
- Angular, five-ribbed insulator design prevents misfire due to current leakage.
- Nickel-plated rolled threads provides complete anti-seize and corrosion protection.
- Metal glass fused resistor maximizes interference suppression.