High-performance MASUMA Auto Iridium Spark Plug for Toyota, Mitsubishi, and Suzuki vehicles. Precision-engineered with platinum-iridium alloy center electrode for superior conductivity and extended lifespan. Laser-welded fine-wire tip ensures consistent spark delivery, improving fuel efficiency and engine responsiveness. Triple gasket sealing prevents gas leakage under extreme pressure. Ideal for high-temperature applications in turbocharged or performance-tuned engines. Direct OEM replacement with exact heat range specifications. Factory pre-gapped for hassle-free installation. Optimized for both city driving and long-distance highway performance. Bulk purchase available for auto repair shops and wholesale distributors. Ships globally with competitive wholesale pricing.