High-Performance Iridium Spark Plug for Chevrolet, Buick, Hummer & GMC
Premium iridium tip ensures ultra-durable performance, reducing wear and prolonging service life. Precision laser welding guarantees consistent ignition and optimal fuel efficiency. Specially engineered for Chevrolet, Buick, Hummer, and GMC models, delivering smoother acceleration and reduced misfires. Corrosion-resistant shell withstands extreme engine conditions. Ideal for high-mileage vehicles, enhancing combustion efficiency and lowering emissions. Direct replacement for OEM part #12621258, ensuring perfect fit and factory-grade reliability. Exclusive bulk pricing available—global wholesale supplier with unbeatable low costs. Stock up for fleet maintenance or resale with confidence.