NGK 94705 LKR7BHX Ruthenium HX Plug

NGK Ruthenium HX is designed for newer engines which demand high ignitability. Projected Square Platinum Electrode (PSPE) design promotes spark energy concentration and ignites a wider range of air-fuel ratios, offering improved performance in rich or lean engine conditions. 0.4mm Ruthenium alloy fine wire center electrode and 0.8mm 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: 12mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Reach: 26.5mm (1.04")
Hex Size: 5/8" (16mm)
Terminal Type: Solid
Gap: .031" (0.8mm)

Center Electrode

Material: Ruthenium
Type: Fine Wire
Size: 0.6mm
Projection: Extended Projection

Ground Electrode

Material: Platinum
Type: Projected Square

Specifications

Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 7
Torque Specs: Cast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.

• Mfg Part No: 94705 LKR7BHX
• Related Part No: 94705 LKR7BHX