Iridium Spark Plugs; 8-Piece (13-19 6.0L Sierra 3500 HD)Find parts that fit my vehicle

Premium Spark Plugs. The Spark Plug Set delivers high-performance ignition components designed to optimize engine functionality. These plugs provide superior combustion efficiency, contributing to reliable engine starts and smoother operation. Their durable iridium tips help maintain excellent fuel economy and optimal performance over time.

Construction and Appearance. Built with iridium tips for enhanced durability, these spark plugs feature a built-in resistor to suppress electromagnetic interference with onboard electronics. Manufactured to precise heat range specifications, they ensure consistent and reliable performance. Finished with a clean, metallic exterior, they are engineered for both durability and visual quality.

Installation. Installation is straightforward with no additional modifications or drilling required. Suitable for both professional mechanics and experienced DIYers, these plugs fit directly into the existing spark plug wells for easy replacement.

Warranty. Backed by a limited lifetime warranty covering manufacturing defects during intended use. Application. Specifically designed to fit the 2013-2019 6.0L Sierra 3500 HD, ensuring compatibility with the ignition system requirements and avoiding fitment issues with other models or engine variations.

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