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NGK ZKR7AI-8 / ZKR7AI8 / 92402 Laser Iridium Spark Plug Genuine NGK Component ( 92402 )With the smallest tip diameter available, OE Iridium spark plugs provide superior ignitability and long service life. The iridium/platinum surfaces ensure a slow wear rate, providing stable idle and superior anti-fouling. Laser-welded iridium center electrode tip Platinum disc welded to backside of ground electrode provides long life Trivalent metal plating for superior anti-corrosion and anti-seizing Faster starts and quicker acceleration Better fuel economy and lower emissions Best OEM Iridium spark plug available OEM-approved designBOX DIMENSIONSHeight (mm): 84Width (mm): 24Length (mm): 21We also offer an LPG alternative of this spark plug. For More Information click