NGK Iridium Spark Plug Box of 4 (IZTR5B11)

This product includes a box of four NGK Iridium spark plugs, part number 1465. These are designed as direct OE replacements, meaning they are built to the same specifications as the plugs your vehicle came with from the factory. They feature a fine wire iridium center electrode, which is known for its durability and ability to maintain a consistent, stable spark. This is important for ensuring your engine runs smoothly and efficiently.

The iridium alloy used in the center electrode has a very high melting point, making it well-suited for modern, high-performance engines. NGK also incorporates a pure alumina silicate ceramic insulator, which offers good strength and helps manage heat transfer. For improved resistance to corrosion and seizing, the plugs have a trivalent metal plating. Many of these plugs also include a platinum pad on the ground electrode, which helps them wear evenly in distributorless ignition systems.

These NGK spark plugs fit a wide range of vehicles, including models like the Chevrolet Silverado, Cadillac Escalade, and Buick LaCrosse. They are a solid option if you're looking for a long-lasting, reliable spark plug that meets original equipment standards.