What makes iridium spark plugs better than platinum?

Iridium is a much harder metal than platinum, meaning the fine wire center electrode can be made smaller and lasts longer. This allows for a more consistent spark and better ignitability, especially in high-temperature engines.

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

These NGK IX Iridium spark plugs feature trivalent metal plating which helps prevent corrosion and seizing. It is still recommended to check manufacturer guidelines for specific installation procedures, which may include applying anti-seize compound.

How many spark plugs are in this set?

This product is a set of four (4) NGK IX Iridium spark plugs. This is the standard quantity for most 4-cylinder engines.

NGK IX Iridium Spark Plug

Name: NGK IX Iridium Spark Plug
Brand: NGK
SKU: ngk-ngk-ix-iridium-spark-plug-pa-ng93501
Price: 8.03 USD
Availability: InStock

$8.03

In Stock

NGK IX Iridium Spark Plug (Set of 4). Offers improved throttle response and durability for many vehicles.

Key Features

Fits a wide range of vehicles including Acura, Honda, Infiniti, Lexus, Mazda, Nissan, Pontiac, and Scion models.
Features a fine iridium tip for a durable and consistent spark, leading to improved acceleration and fuel efficiency.
Tapered cut ground electrode helps with easier starting, smoother idling, and better throttle response.
Trivalent metal plating provides superior resistance to corrosion and seizing.
Designed for modified or high-performance applications, or as an upgrade over OE nickel alloy spark plugs.
Includes a set of 4 spark plugs.

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Product Details

If you're looking to get the most out of your engine, especially if it's been modified or you're aiming for better performance, upgrading your spark plugs is a smart move. These NGK IX Iridium spark plugs are built with a fine iridium tip, which helps ensure a consistent spark. This translates to better acceleration, improved fuel efficiency, and longer life compared to standard plugs. They're designed to handle the higher temperatures found in today's engines, making them a solid choice for many different makes and models.

The iridium alloy used in the center electrode is notably durable, offering six times the hardness of platinum. This means you can expect reliable performance over time. The tapered ground electrode also plays a role, contributing to easier starting, smoother idling, and a more responsive throttle. Plus, the trivalent metal plating on the plug body helps prevent corrosion and seizing, which makes them easier to remove down the road.

This set includes four spark plugs, which is the correct amount for most 4-cylinder engines. They're a popular upgrade for drivers who want a noticeable improvement in how their engine runs, whether it's for daily driving or more spirited use.