NGK94122-1 NGK Ruthenium HX Spark Plug -LFR6AHX-S-

NGK ruthenium HX is designed for newer engines which demand high ignitability. Double Fine Electrode (DFE) design promotes spark energy concentration and ignites a wider range of air-fuel ratios, offering improved performance in rich or lean engine conditions. 0.4 mm Ruthenium alloy fine wire center electrode and 0.8 mm platinum fine wire ground electrode. Trivalent metal platinum provides superior anti-corrosion and anti-seizing properties. Corrugated ribs prevent flashover. Pure alumina silicate ceramic insulator provides superior strength and better heat transfer. Copper core aids in heat removal.

Shell Thread Diameter: 14 mm
Shell Thread Pitch: 1.25 mm
Shell Seat Type: Gasket
Shell Reach: 26.5 mm(1.04 in)
Shell Hex Size: 5/8 in(16 mm)
Shell Terminal Type: Solid
Shell Overall Height: ISO
Shell Gap: 0.043 in(1.1 mm)
Center Electrode Material: Ruthenium
Center Electrode Type: Fine Wire
Center Electrode Size: 0.6 mm
Center Electrode Projection: Projected
Ground Electrode Material: Platinum
Ground Electrode Type: Fine Wire
Ground Electrode Shape: Taper Cut
Ground Electrode Quantity: 1
Resistor: Yes
Resistor Value: 5 kohm
Heat Range: 6
Torque Specs: Cast Iron: 18-25.3 lb-ft, Aluminum: 18-21.6 lb-ft
Longevity: 60-120 kmile
Fitment: Automotive
Warranty: 60 days