
Direct Supply of High Quality Spark Plugs for All Types Ik20 5304. Extended Service Life: Offers 4X longer service life compared to standard copper spark plugs. Premium Iridium Material: Features iridium center electrode for maximum life and strong ignition. High Purity Insulator: Made of 95% pure alumina, highly resistant to heat shock and super-insulating. Corrosion Protection: Nickel-plated housing and copper core electrode prevent oxidation and corrosion. Precision Sealing: Inner sealing with conductivity glass ensures fine conductivity and gas-tight fit. OEM/ODM Acceptance: Customization accepted with flexible packaging options including neutral packing. Strict Quality Control: Undergoes multi-pass factory ignition tests to ensure every product is qualified. ISO9001 Certified: Manufactured with ISO9001 certification ensuring high quality standards.