It looks like we don't have any community posts for this product right now — Got relevant content to contribute?
About Autolite Copper Core Spark Plug
Autolite Copper Core Spark Plug
Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100 percent leak proof)
Multi-rib insulator reduces danger of flash-over
One-piece terminal post adds strength
Resistor reduces radio frequency interference (RFI) and electrode erosion
Cold-formed steel shell precision rolled threads
Full copper core electrode provides better performance in all conditions.