Iridium and Platinum Spark Plugs; Set of 6 (14-21 4.3L Silverado 1500)Find parts that fit my vehicle

Dual-Metal Ignition Efficiency. The Iridium and Platinum Spark Plugs are engineered for high-performance ignition in demanding environments. Designed with an iridium tip and platinum core, these spark plugs ensure reliable starts, smoother combustion, and long-lasting durability for your Silverado 1500. Ideal for modern engines, they deliver consistent firing even under extreme temperatures and pressures.

Construction and Appearance. These spark plugs feature a fine-wire iridium center electrode for precise ignition and a platinum core that enhances conductivity and service life. The gap size ranges from 0.039 to 0.043 inches, optimized for efficient combustion. Each plug has a corrosion-resistant shell with a clean, OEM-style finish for a professional-grade appearance.

Installation. Installation is quick and easy with no special tools required. These spark plugs are direct-fit replacements and require only basic mechanical skills for proper installation.

Warranty. This product includes a two-year warranty, covering material and manufacturing defects.

Application. This Iridium and Platinum Spark Plugs set fits 2014 to 2021 4.3L Chevrolet Silverado 1500.

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