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FAQ'S
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Autolite Copper Resistor Spark Plug
AUTL66
- Copper-glass seal bonds insulator, terminal post, and center electrode together to provide a tight seal that is 100 percent leak-proof
- Cold-formed steel shell and precision rolled threads, with one-piece terminal post to add strength
- Multi-rib insulator reduces danger of "flash-over"
- Resistor reduces radio frequency interference (RFI) and electrode erosion
- Full copper core electrode provides better performance in all conditions
