Guaranteed to deliver quick starts, good fuel economy and smooth acceleration.
Autolite® Copper Core plugs are your industry standard.
|Copper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% 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|