Autolite Spark Plug 4303/4 Copper 4-4303

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Autolite Spark Plug 4303/4 Copper 4-4303Spark Plug 4303/4 CopperFeatures: 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 Verify all cross reference listings before purchase Show more