What makes the iridium center electrode special?

The iridium alloy used for the fine wire center electrode has a very high melting point and is significantly harder than platinum. This allows for a smaller, more durable electrode that produces a consistent and stable spark, which is beneficial for modern engines.

Are these spark plugs sold individually?

No, these NGK Laser Iridium spark plugs are sold and packaged as a box of four. This is convenient for vehicles that require four spark plugs per engine.

What is the benefit of the platinum pad on the ground electrode?

The platinum fine wire tip on the ground electrode helps ensure even wear over time, particularly in distributorless ignition systems. This contributes to maintaining consistent spark performance throughout the plug's service life.

NGK Spark Plugs SILZKBR8D8S 97506 - Multi-Fit

Name: NGK Laser Iridium Spark Plug Box of 4 (SILZKBR8D8S)
Brand: NGK
Price: 18.42 USD
Availability: InStock

NGK Laser Iridium Spark Plug Box of 4 (SILZKBR8D8S)

$18.42

In Stock

NGK Laser Iridium spark plugs (box of 4). Features fine wire iridium center electrode for a stable spark and improved performance.

Key Features

This product includes a box of 4 NGK Laser Iridium spark plugs.
The fine wire center electrode is made from an iridium alloy, offering high durability and a stable spark.
A platinum pad on the ground electrode promotes even wear in distributorless ignition systems.
Pure alumina silicate ceramic insulator provides superior strength and heat transfer.
Trivalent metal plating offers excellent resistance to corrosion and seizing.
A copper core aids in heat removal from the spark plug.

Secure CheckoutFast Shipping631-982-0042

Will this fit your vehicle?

Product Details

This is a box of four NGK Laser Iridium spark plugs, part number SILZKBR8D8S. These are designed as direct OE replacements, meaning they match the original equipment specifications for a wide range of vehicles. The fine wire center electrode, made from an iridium alloy, offers excellent durability and helps ensure a consistent, stable spark. This advanced design is well-suited for today's modern engines.

The construction includes a pure alumina silicate ceramic insulator for strength and heat transfer, along with trivalent metal plating to resist corrosion and seizing. A copper core is integrated to help manage heat, and triple seals are used to prevent any leaks. These features work together to provide reliable starting and optimal performance over the plug's lifespan. The platinum pad on the ground electrode helps with even wear, especially in distributorless ignition systems.

NGK recommends these plugs for vehicles that originally came with OE iridium alloy spark plugs. They are a solid option for maintaining your vehicle's ignition system performance and longevity.