What makes iridium spark plugs last longer?

Iridium is a very hard metal with an extremely high melting point, six times harder than platinum. This allows for a finer wire center electrode, which requires less voltage to fire and creates a more consistent spark, while also resisting wear for extended longevity.

Do these spark plugs come with anti-seize on the threads?

These spark plugs feature trivalent metal plating for superior anti-corrosion and anti-seizing properties. It is still recommended to check the manufacturer's installation instructions for any specific torque or anti-seize requirements for your vehicle.

How many spark plugs are included in this box?

This is a box of four (4) NGK Laser Iridium spark plugs. This quantity is suitable for most vehicles that use this specific plug type as original equipment.

NGK Laser Iridium Spark Plug DILFR7K9G 91961

Name: NGK Laser Iridium Spark Plug DFE Box of 4 (DILFR7K9G)
Brand: NGK
Price: 17.26 USD
Availability: InStock

NGK Laser Iridium Spark Plug DFE Box of 4 (DILFR7K9G)

$17.26

In Stock

NGK Laser Iridium spark plugs (4-pack) for various Lexus models. Features a fine wire iridium center electrode for consistent spark and long life.

Key Features

Fits various Lexus GS, IS, NX, and RC models.
Features a fine wire iridium center electrode for durability and a stable spark.
Pure alumina silicate ceramic insulator provides superior strength and heat transfer.
Trivalent metal plating offers excellent corrosion and anti-seizing resistance.
Platinum pad on the ground electrode promotes even wear in distributorless ignition systems.
98 percent pure copper core aids in heat removal and reliable starts.

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Will this fit your vehicle?

Product Details

These NGK Laser Iridium spark plugs are a direct replacement for your vehicle's original plugs, designed to offer a great balance of performance and how long they last. They're built with a fine wire iridium center electrode, which has an extremely high melting point and ensures a stable spark, even in today's high-tech engines. This makes them a solid option for many Lexus models, including the GS, IS, NX, and RC series.

The pure alumina silicate ceramic insulator helps with heat transfer, keeping the plug from overheating, while the trivalent metal plating on the exterior helps prevent corrosion and seizing. You'll also find a platinum pad on the ground electrode, which helps with even wear, especially in distributorless ignition systems. The 98 percent pure copper core is also key to managing heat and ensuring reliable starts.

This set comes with four spark plugs, which is what most vehicles with this type of plug will need. They are designed to be a direct OE equivalent, meaning they fit right in place of your original equipment spark plugs.