What makes Ruthenium different from standard spark plugs?

Ruthenium is a precious metal alloy that NGK uses for its center electrode. It's known for offering superior durability and ignitability compared to standard platinum or iridium electrodes, leading to longer life and more consistent performance.

What is the DFE design on these spark plugs?

DFE stands for Double Fine Electrode. This design concentrates the spark energy, which helps ignite a wider range of air-fuel ratios. This can result in improved performance whether your engine is running rich or lean.

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

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

NGK Ruthenium HX Spark Plug (FR7BHX-S)

Name: NGK Ruthenium HX Spark Plug (FR7BHX-S)
Brand: NGK
SKU: ngk-ngk-ruthenium-hx-spark-plug-fr7bhx-s-pa-ng92400
Price: 209.33 USD
Availability: InStock

$209.33

In Stock

NGK Ruthenium HX Spark Plug Box of 4 (FR7BHX-S). Features advanced Ruthenium technology for improved performance and longer life.

Key Features

Fits a wide range of vehicles including Acura RSX, Audi A4, and Honda Civic.
Features a 0.4mm Ruthenium alloy fine wire center electrode for improved durability and ignitability.
Includes a 0.8mm platinum fine wire ground electrode.
Pure alumina silicate ceramic insulator offers superior strength and heat transfer.
Trivalent metal plating provides excellent resistance to corrosion and seizing.
Corrugated ribs on the insulator help prevent flashover.

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Product Details

NGK's FR7BHX-S Ruthenium HX spark plugs are a solid option for many modern vehicles, offering an updated approach to ignition. These plugs are built with a patented Ruthenium alloy center electrode, which is known for its durability and ability to promote a strong spark. This advanced tip technology helps ensure a more complete fuel burn, which can lead to a quicker throttle response, a smoother idle, and easier cold starts. They are designed to meet the demands of newer engines that require high ignitability.

The Double Fine Electrode (DFE) design on these NGK plugs helps concentrate the spark energy, allowing them to ignite a wider range of air-fuel mixtures. This means they can perform well in both richer and leaner engine conditions. The plugs also feature a 0.8mm platinum fine wire ground electrode and a pure alumina silicate ceramic insulator for strength and heat transfer. For easier installation and to prevent corrosion and seizing, they come with a trivalent metal plating.

This box contains four spark plugs, suitable for many vehicles including models like the Honda Civic, Audi A4, and Chevrolet Cruze. The corrugated ribs on the insulator help prevent flashover, and the copper core aids in heat removal, contributing to overall performance and longevity.