NGK - The Ignition Specialist

Most standard iridium plugs will not meet OEM service interval mileage recommendations if used in today’s engines, which can include turbos and superchargers. These elements, in addition to direct injection and high operating temperatures, can shorten a plug’s life span. Using standard iridium plugs can also reduce performance and efficiency and increase emissions.
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Get Better Service Life & Performance with High Ignitability

High ignitability spark plugs have specific ground electrode configurations that are designed to produce a wider flame kernel that burns fuel more efficiently (not hotter). These tips are also composed of precious metal material that withstands intense engine environments. NGK is the only spark plug manufacturer to produce all three designs below:
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Square Platinum Electrode Spark Plugs
Dual Fine Electrode Spark Plugs
Projected Square Platinum Electrode Spark Plugs
Not only meeting OEM service interval mileage recommendations thanks to its longer service life, high ignitability tips also provide:
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a more complete burn of fuel
smoother idling
quicker throttle response
better cold starts

Our High Ignitability Spark Plugs

Photo of Laser Iridium and Laser Platinum premium spark plugs

Laser Iridium & Laser Platinum

The upgraded, OE replacement spark plug. Fine-tipped center electrode with dual precious metals and high ignitability ground electrode designs. The choice plug of leading OEMs for its outstanding longevity.

Shop NGK Laser Iridium and Laser Platinum Spark Plugs

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More Quality Spark Plug Solutions

Image of Iridium IX Spark Plugs

Iridium IX

The aftermarket solution for high performance and modified engines with superior anti-fouling capability. Fine-tipped center electrode of iridium alloy with unique tapered ground electrode.

Shop NGK Iridium IX® Spark Plugs

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Image of G-Power Spark Plugs

G-Power

Faster starts, quicker acceleration, improved fuel economy, and lower emissions. Fine-tipped center electrode of platinum alloy with tapered ground electrode. Get better performance at a value.

Shop NGK G-Power® Spark Plugs

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Image of V-Power and Standard Nickel/Copper Spark Plugs

V-Power and Standard Nickel/Copper

The economical and reliable OE replacement plug best suited for older vehicles. Standard, v-shaped nickel center electrodes with standard ground electrodes, and copper core.

Shop NGK V-Power® and Standard Nickel/Copper Spark Plugs

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Watch: Spark Plug Service Intervals

How often do spark plugs need to be changed? Here we discuss the importance of looking into recommended service intervals.

Pro Tip: Check your owner's manual for your OEM vehicle recommended service intervals or the NGK Catalog.

Join the Shop Squad Community

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A Space for Technicians

The Shop Squad was created to support technicians and shops who want to keep their edge and stay ahead in the auto repair industry through education, resources, and an opportunity to share dialogue and insights.


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With over 80 years of automotive expertise, we are driven by extreme dedication to performance and quality. From OEM to aftermarket, our people push the boundaries of innovation to bring the latest technologies to market under the NGK and NTK brands.
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