NGK (4548) CR9EK Standard Spark Plug， Pack of 1<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Solid copper core for greater spark， superior heat dissipation and conductivity</li><li>Longer insulator nose prevents fouling</li><li>Corrugated ribs on insulator prevents flashover</li><li>Dual ground electrodes for more consistent spark</li><li>Triple gasket seal eliminates combustion gas leakage and the zinc dipped shell prevents corrosion</li></ul></div><img src="http://ecx.images-amazon.com/images/I/31xkvVKkFIL.jpg" noproxy>