NGK Iridium Spark Plugs Box of 4 (BKR9EIX)

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

Shell:

Thread Size: 14mm

Thread Pitch: 1.25mm

Seat Type: Gasket

Resistor Value: 5K Ohm

Reach: 19mm (3/4")

Hex Size: 5/8" (16mm)

Terminal Type: Solid

Overall Height: ISO

Gap: .031" (0.8mm)

Center Electrode:

Material: Iridium

Type: Fine Wire

Size: 0.6mm

Projection: Projected

Ground Electrode:

Material: Nickel

Type: Standard

Shape: Taper Cut

Quantity: 4

Torque Specs:

Cast Iron: 18-25.3 lb. ft.

Aluminum: 18-21.6 lb. ft.