Autolite 4164 Copper Resistor Spark Plug
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<b>[Product Information]</b><br>
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<li>Full copper core electrode with necked down tip for improved ignitibility provides better performance in all conditions</li>
<li>Cold-formed steel shell and precision rolled threads, with anti-corrosive nickel plated shell</li>
<li>Gas-tight seal (100 percent leak-proof) and reduced RFI (radio frequency interference)</li>
<li>One-piece terminal post for added strength and multi-rib insulator reduces danger of "flash-over"</li>
<li>Copper-glass, resistive seal bonds insulator, terminal post, and center electrode together ensures full required voltage at spark gap</li>
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