
New Arrival Latest Design Car Parts Ignition System 9723 Silzk7rb11 Spark Plug. Long Service Life: 4X longer service life compared to standard copper spark plugs. Premium Iridium Material: Iridium center electrode delivers maximum life and strong ignition. High Purity Insulator: Made of 95% pure alumina, highly resistant to heat shock. Corrosion Resistance: Nickel-plated housing and copper core electrode prevent oxidation. OEM/ODM Acceptance: Customization available for thread size and other specifications. ISO9001 Certified: Product meets international quality standards with strict factory testing. Easy Installation: Original size design ensures strict alignment with car standard processing. Stable Performance: Multi-ribs insulator eliminates flashover for reliable spark.