What makes the iridium center electrode so durable?

Iridium is an extremely hard metal with a very high melting point. This allows the center electrode to be made much finer while still withstanding the heat and electrical stress of combustion, leading to improved durability and a more consistent spark.

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

These NGK spark plugs feature trivalent metal plating for superior anti-corrosion and anti-seizing properties. While this plating helps, it's always a good practice to refer to the manufacturer's installation instructions for any specific recommendations regarding anti-seize compound during installation.

How many spark plugs do I need for my Honda CR-Z?

Your Honda CR-Z uses four spark plugs. This box contains four NGK Laser Iridium spark plugs, providing the correct quantity for a complete replacement.

NGK Laser Iridium Spark Plug (DIFR6D13)

Name: NGK Laser Iridium Spark Plug (DIFR6D13)
Brand: NGK
SKU: ngk-ngk-laser-iridium-spark-plug-difr6d13-pa-ng94167
Price: 18.08 USD
Availability: InStock

$18.08

In Stock

Fits 2011-2016 Honda CR-Z. NGK Laser Iridium spark plugs offer improved durability and a stable spark for optimal engine performance.

Key Features

Fits 2011-2016 Honda CR-Z.
Iridium-tipped center electrode offers six times the durability of platinum for a long-lasting, stable spark.
Pure alumina silicate ceramic insulator provides superior strength and better heat transfer.
Trivalent metal plating resists corrosion and seizing.
Raised platinum pad on the ground electrode ensures even wear in distributorless ignition systems.
Copper core aids in heat removal.

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Product Details

The iridium-tipped center electrode on these NGK Laser Iridium spark plugs is six times harder than platinum, offering significantly improved durability and a consistently stable spark. This makes them a solid choice for your 2011-2016 Honda CR-Z, especially if you're looking for a replacement that meets or exceeds original equipment standards.

NGK builds these plugs with a pure alumina silicate ceramic insulator that helps with heat transfer, preventing the plug from overheating. They also feature trivalent metal plating, which gives them good resistance to corrosion and makes them less likely to seize up during installation or removal. For distributorless ignition systems, the raised platinum pad on the ground electrode helps ensure even wear and maintains a strong spark over time.

This set includes four spark plugs, which is what your CR-Z needs. The copper core aids in heat removal, and triple seals are used to prevent any leaks. These are designed as an OE equivalent, meaning they're made to perform just like the plugs your car came with from the factory.