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.