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The NGK Ruthenium HX 94279 Spark Plug (FR6AHX-S) delivers advanced ignition performance with a fine-wire ruthenium alloy electrode, designed for enhanced durability, superior combustion, and extended service life in modern turbocharged and direct-injection engines.
🔧 Ruthenium tip offers extreme wear resistance and spark stability
🔧 Fine-wire design improves ignitability and throttle response
🔧 Trivalent plating protects against corrosion and thread galling
🔧 Engineered to meet or exceed OE performance standards
Brand & Part Number: NGK 94279 FR6AHX-S
Material: Ruthenium
Thread Size: 14mm
Reach: 25mm (0.98 in.)
Hex Size: 5/8 in. (16mm)
Seat Type: Gasket
Resistor: Yes
Gap: 0.040 in. (1.0mm)
Upgrade to NGK FR6AHX-S for cutting-edge ignition reliability, fuel efficiency, and long plug life—order now!