NGK Spark Plug IFR6J-11 (7658)

NGK single iridium plugs were designed specifically for the performance enthusiast. Fine wire centre 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.

Features:

- 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.

Specifications:

S hell

- Thread Diameter: 14mm
- Thread Pitch: 1.25mm
- Seat Type: Gasket
- Reach: 19mm (3/4")
- Hex Size: 5/8" (16mm)
- Terminal Type: Solid
- Overall Height: ISO
- Gap:.043" (1.1mm)

Centre Electrode

- MaterialIridium
- TypeFine Wire
- Size1.0mm
- ProjectionProjected

Ground Electrode

- Material: Platinum
- Type: Standard

Specifications

- Res istor: Yes
- Resistor Value: 5k Ohm
- Heat Range: 6
- Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminium: 18-21.6 lb. ft.