NGK (7901) IJR7A9 Laser Iridium Spark Plug， Pack of 1<div style="text-align: left;"><strong>[Product Information]</strong><br><ul><li>Designed to operate over a much wider heat range than ordinary plugs</li><li>Resists carbon buildup and pre-ignition</li><li>High alumina ceramics for better heat transfer and electrical insulation</li><li>Solid copper core and nickel tipped electrode provide a longer plus life</li><li>Patented triple gasket sealing process eliminates the possibility of combustion gas leakage</li><li>Laser welded Iridium center electrode tip ensures high durability and greater spark</li><li>Platinum disc welded to backside of ground electrode provides long life</li></ul></div><img src="http://ecx.images-amazon.com/images/I/41JMU4lDm5L.jpg" noproxy><img src="http://ecx.images-amazon.com/images/I/41CCCjoCYtL.jpg" noproxy>