What is the main advantage of iridium spark plugs over standard plugs?

Iridium is a much harder and more durable metal than platinum or nickel alloys. This allows for a finer center electrode, which requires less voltage to ignite and creates a stronger, more consistent spark. This leads to improved acceleration, better fuel efficiency, and longer plug life.

Do these spark plugs come with anti-seize pre-applied?

These NGK Iridium IX spark plugs feature trivalent metal plating on the body, which provides superior anti-corrosion and anti-seizing properties. While this plating helps, it's always a good practice to apply a small amount of anti-seize compound to the threads during installation for easier removal in the future.

What does the tapered cut ground electrode do?

The tapered cut on the ground electrode is a design feature that helps improve the plug's ability to ignite the air-fuel mixture. This can lead to easier starting, a smoother idle, and a more responsive throttle feel.

NGK Iridium IX Spark Plug Box of 4 (XR5IX)

Name: NGK Iridium IX Spark Plug Box of 4 (XR5IX)
Brand: NGK
Price: 8.32 USD
Availability: InStock

$8.32

In Stock

NGK Iridium IX Spark Plug Box of 4 (XR5IX). Offers improved acceleration and fuel efficiency.

Key Features

Fits a wide range of vehicle makes and models.
Features a fine iridium center electrode for durable and consistent spark.
Trivalent metal plating offers superior anti-corrosion and anti-seizing properties.
Designed for improved acceleration, high fuel efficiency, and durability.
Tapered cut ground electrode aids in improved starting, idling, and throttle response.
Comes as a box of 4 spark plugs.

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Will this fit your vehicle?

Product Details

When you're looking to get the most out of your engine, especially if it's been modified or you're aiming for better overall performance, upgrading your spark plugs is a smart move. These NGK Iridium IX spark plugs are designed to handle the demands of higher-performance engines, offering a significant step up from standard nickel alloy plugs. They are built to provide a strong, consistent spark that helps your engine run more efficiently and respond better.

The key to these plugs is the fine iridium center electrode. Iridium is a very hard metal with a high melting point, making it ideal for today's hotter-running engines. This design helps ensure a durable and consistent spark, which translates to better acceleration, improved fuel economy, and a smoother idle. The tapered ground electrode also plays a role, helping to improve starting and throttle response. Plus, the trivalent metal plating on the plug body helps prevent corrosion and makes them easier to remove down the road.

This box contains four NGK Iridium IX spark plugs, part number 7355. They fit a wide range of vehicles, from classic muscle cars to modern performance applications. If you're looking for a spark plug that offers improved performance and durability, these NGK plugs are a solid option.