NGK Iridium IX DPR8EIX-9 Spark Plug

NGK IX Iridium Series plugs were designed specifically for the performance enthusiast. Fine wire center electrode ensures high durability and a consistently stable spark. Iridium alloy has an extremely high melting point, perfect for today’s high-tech, high performance engines. Trivalent metal plating 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. Triple seals prevent leakage.

Resistor: Yes
Resistor Value: 5k Ohm
Heat Range: 8
Brand: NGK
Longevity: 50k Miles
Shell Thread Diameter: 12mm
Shell Thread Pitch: 1.25mm
Shell Seat Type: Gasket
Shell Reach: 19mm 
Shell Hex Size: 18mm
Terminal Type: Removable Nut
Center Electrode Material: Iridium
Center Electrode Type: Fine Wire
Center Electrode Size:0.6mm
Center Electrode Projection: Projected
Ground Electrode Material: Nickel
Ground Electrode Type: Standard
Ground Electrode Shape: Taper Cut
Ground Electrode Quantity: 1