4 Pack Genuine NGK 97220 Laser Iridium High Ignitability Spark Plug DILZKAR7H11H

NGK single iridium 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

Center Electrode Core Material: Copper
Center Electrode Design: Fine Wire
Center Electrode Tip Material: Iridium
Electrical Terminal Type: Non-Removable Nut
Grade Type: Performance
Ground Configuration: J-Gap
Ground Electrode Core Material: Nickel
Ground Electrode Quantity: 1
Ground Electrode Tip Design: Dual Fine Electrode (DFE) - High Ignitability
Ground Electrode Tip Material: Platinum
Hex Size: 14mm
Insulator Material: Ceramic
Manufacturer Heat Range: 7
Pre-Gap Size: 1.1 mm
Pre-Gap Size: .044 in
Resistor Type: Yes
Seat Type: Flat
Thread Size: M12 - 1.25
Thread Type Standard: Metric
Washer Type: Crush
Washer(s) Included: Yes