NGK Laser Iridium Spark Plug Set 2006-2014 WRX / 2004-2021 STI

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

SHELL

Thread Diameter: 14mm

Thread Pitch: 1.25mm

Seat Type: Gasket

Reach: 26.5mm (1.04")

Hex Size: 5/8" (16mm)

Terminal Type: Solid

Overall Height: ISO

Gap: .024" (0.6mm)

CENTER ELECTRODE

Material: Iridium

Type: Fine Wire

Size: 0.6mm

Projection: Projected

GROUND ELECTRODE

Material: Platinum

Type: Standard

Shape: Taper Cut

Quantity: 1

SPECIFICATIONS

Resistor: Yes

Resistor Value: 5k Ohm

Heat Range: 7

Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.

Part Information

Brand: NGK/NTK

Warranty: 60 Days

Longevity: 100k Miles