NGK Ruthenium HX High Ignitability Spark Plugs (Box of 4) FR6AHX-S Select 1997-2016 (5.9L)

Fits select 1997-2016 Acura, Audi, BMW, Chevrolet, and Dodge (5.9L).

NGK Ruthenium HX spark plugs utilize patented ruthenium technology to provide superior ignitability and service life for modern high-performance engines. Engineered to surpass traditional iridium and platinum designs, these plugs are specifically suited for vehicles originally equipped with DFE (Double Fine Electrode) and PSPE (Projected Square Platinum Electrode) tip configurations. The high-ignitability design ensures a more complete fuel burn, resulting in crisper throttle response, a smoother idle, and more reliable cold-weather starts.

• Advanced Tip Technology: Features a 0.4mm Ruthenium alloy fine wire center electrode and a 0.8mm platinum fine wire ground electrode for maximum spark concentration.
• Extreme Durability: Ruthenium provides industry-leading resistance to wear and oxidation under high-heat conditions.
• Robust Construction: Pure alumina silicate ceramic insulator offers superior dielectric strength and thermal transfer.
• Service Features: Trivalent metal plating provides excellent anti-corrosion and anti-seizing properties, while corrugated ribs prevent electrical flashover.
• Heat Dissipation: Integrated copper core assists in rapid heat removal to prevent pre-ignition.
• Manufacturer Part Number: FR6AHX-S