NGK Iridium IX Spark Plug Box of 4 (BR6HIX)

The iridium alloy in these NGK Iridium IX spark plugs has an extremely high melting point, making it well-suited for today's higher-temperature engines. This particular plug, the BR6HIX, is designed with a fine iridium center electrode and a tapered cut ground electrode. This setup helps ensure a durable and consistent spark, which can lead to improved starting, smoother idling, and a more responsive throttle. These plugs are a solid option for modified or high-performance applications, or as an upgrade over standard nickel alloy plugs.

NGK uses a trivalent metal plating on these plugs, which offers good protection against corrosion and seizing, making installation and removal easier. The fine iridium tip is known for its durability, offering a consistent spark over a longer period compared to some other materials. This durability, combined with the improved ignitability, contributes to better acceleration, higher fuel efficiency, and overall longevity.

This NGK Iridium IX spark plug is sold individually, but comes in a box of 4 for convenience when you need a full set. They fit a wide range of vehicles, including many classic Volkswagen models, certain Arctic Cat snowmobiles, and various motorcycles and marine engines.