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The ACDelco 41-103 Professional Iridium Spark Plug is a high-performance ignition component engineered for optimal engine efficiency. Manufactured by ACDelco, a trusted name in automotive parts, this spark plug features advanced iridium technology, ensuring reliable and consistent ignition. The 41-103 is designed for precision and durability, delivering stable performance across a range of driving conditions. As a professional-grade spark plug, it offers easy installation and compatibility with various vehicle models, contributing to improved fuel efficiency and engine responsiveness. Upgrade your ignition system with confidence using the ACDelco 41-103 for a smoother and more efficient engine operation.