What makes iridium spark plugs different from standard plugs?

Iridium is a much harder metal than platinum and has a higher melting point. This allows for a finer center electrode, which requires less voltage to create a spark. This results in a stronger, more consistent spark for better performance and durability.

Do these spark plugs come with anti-seize lubricant?

These NGK Iridium IX spark plugs feature trivalent metal plating on the shell, which provides anti-corrosion and anti-seizing properties. While this plating helps, it's always a good idea to consult your vehicle's service manual for specific installation recommendations regarding anti-seize compound.

How many spark plugs are included in this box?

This product is a box of four (4) NGK Iridium IX spark plugs. This quantity is suitable for most 4-cylinder engines. If your vehicle has more cylinders, you will need to purchase additional boxes.

NGK Iridium IX Spark Plug (ZFR6AIX-11S)

Name: NGK Iridium IX Spark Plug (ZFR6AIX-11S)
Brand: NGK
SKU: ngk-ngk-iridium-ix-spark-plug-zfr6aix-11s-pa-ng97138
Price: 106.00 USD
Availability: InStock

$106.00

In Stock

NGK Iridium IX spark plugs offer improved acceleration and fuel efficiency. Box of 4.

Key Features

Fits a wide range of Acura and Honda vehicles.
Fine iridium tip ensures a durable and consistent spark for improved performance.
Trivalent metal plating offers superior resistance to corrosion and seizing.
Designed for outstanding acceleration, high fuel efficiency, and durability.
Provides improved starting, idling, and throttle response.
The iridium alloy's high melting point is ideal for today's high-temperature engines.

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Product Details

NGK is known for making reliable ignition components, and their Iridium IX spark plugs are a solid choice for anyone looking to get more out of their engine. These plugs are designed to provide a stronger spark, which can lead to better acceleration and improved fuel efficiency compared to standard plugs. They are a great option if you're looking to upgrade from OE nickel alloy plugs or if you're working on a modified vehicle.

The fine iridium tip on these plugs is incredibly durable, lasting much longer than platinum. This alloy has a very high melting point, making it well-suited for the high temperatures found in modern engines. You'll notice improved starting and idling, along with a more responsive throttle. Plus, the trivalent metal plating on the body helps prevent corrosion and seizing, making them easier to remove down the road.

This set includes four spark plugs, which is what most 4-cylinder engines will need. They fit a wide range of vehicles, including popular models like the Honda Accord, Civic, and CR-V, as well as several Acura models. If you're looking for a spark plug that offers consistent performance and durability, these NGK Iridium IX plugs are a great option.