NGK Iridium Spark Plug Box of 4 (DILKAR7B11)

You're getting a box of four NGK Laser Iridium spark plugs, part number 1406. These are designed as direct OE replacements, meaning they're built to the same standards as what came on your vehicle from the factory. They're a solid choice for a wide range of Nissan and Infiniti models, like the 2007-2008 Infiniti G35 or the 2009-2014 Nissan Maxima.

What makes these stand out is the iridium center electrode, which is much harder than platinum and helps ensure a consistent, strong spark over a longer period. This means better ignitability and a more stable spark, which can translate to smoother running and improved fuel efficiency. The pure alumina ceramic insulator helps manage heat effectively, and the trivalent metal plating on the body helps prevent corrosion and makes them easier to remove down the road.

These plugs also feature a platinum pad on the ground electrode, which helps them wear evenly, especially in modern distributorless ignition systems. If your vehicle originally came with iridium spark plugs, these NGK plugs are a direct replacement that will keep your engine running right.