Guaranteed to deliver quick starts, good fuel economy and smooth acceleration. Autolite® copper core plugs are your industry standard. Gas-tight seal (100% leak proof). Cold formed steel shell precision rolled threads. Full copper core electrode provides better performance in all conditions. It s time to change your plugs!
- Copper-glass seal bonds insulator and terminal post center electrode together assure full required voltage at spark gap
- Dependable performance for import and domestic vehicles
- Resistor reduces radio frequency interference and electrode erosion
- Multi-rib insulator reduces danger of flashover