What is the main benefit of Ruthenium in these spark plugs?

Ruthenium is a precious metal alloy used in the center electrode that offers industry-leading durability. It allows for a finer electrode tip, which concentrates spark energy for better ignitability and a more complete fuel burn.

What does the DFE design mean for my engine?

DFE stands for Double Fine Electrode. This design helps concentrate the spark, leading to improved performance across a wider range of air-fuel ratios, whether your engine is running rich or lean. It contributes to smoother idling and quicker throttle response.

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

These spark plugs feature trivalent metal plating, which provides superior anti-corrosion and anti-seizing properties. While this plating helps significantly, it's always a good practice to refer to your vehicle's service manual or consult a professional for specific installation recommendations regarding anti-seize compound.

NGK Ruthenium HX Spark Plug LFR6BHX Box of 4

Name: NGK Ruthenium HX Spark Plug - Box of 4 (LFR6BHX)
Brand: NGK
Price: 51.84 USD
Availability: InStock

NGK Ruthenium HX Spark Plug - Box of 4 (LFR6BHX)

$51.84

Only 3 left in stock

NGK Ruthenium HX Spark Plug - Box of 4 (LFR6BHX). Offers improved performance and longer life for modern engines.

Key Features

Fits a wide range of vehicles including Subaru Impreza, Volvo C30, and Dodge Challenger.
Features a 0.4mm Ruthenium alloy fine wire center electrode and 0.4mm platinum fine wire ground electrode for high ignitability.
Patented DFE (Double Fine Electrode) design concentrates spark energy for improved performance.
Pure alumina silicate ceramic insulator provides superior strength and better heat transfer.
Trivalent metal plating offers superior anti-corrosion and anti-seizing properties.
Corrugated ribs on the insulator help prevent flashover.

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Will this fit your vehicle?

Product Details

If you're looking to get the most out of your modern vehicle's ignition system, these NGK Ruthenium HX spark plugs are a solid option. They're designed for newer engines that demand high ignitability, offering a more complete fuel burn. This can translate into a quicker throttle response, a smoother idle, and better cold starts, making your daily drive more enjoyable.

What sets these plugs apart is NGK's patented Ruthenium technology. The center electrode is a 0.4mm Ruthenium alloy fine wire, paired with a 0.4mm platinum fine wire ground electrode. This Double Fine Electrode (DFE) design concentrates spark energy, which helps ignite a wider range of air-fuel mixtures, improving performance whether your engine is running a bit rich or lean. The pure alumina silicate ceramic insulator offers superior strength and helps with heat transfer, while the trivalent metal plating resists corrosion and seizing, making installation and removal easier. These plugs fit a wide range of vehicles, including models like the Subaru Impreza, Volvo C30, and Dodge Challenger.

NGK also includes features like corrugated ribs on the insulator to prevent flashover and a copper core to aid in heat removal. These plugs are recommended for modern vehicles using OE PSPE type spark plugs, or for anyone seeking an aftermarket plug with the latest OE technology for improved durability and performance.