NGK (ILFR6B) Laser Iridium Long Life Stock Heat Spark Plugs STI 2004-2007 / Legacy GT 2005-2009 (Qty 4) | 6481

Fitment Information:

2004-2007 Subaru STI

2005-2009 Subaru Legacy GT

Features:

• Sold as a set of 4 spark plugs
• Engineered Specifically for OE Applications
• 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
• Longevity: 100k Miles
• 60 Days manufacturer Warranty

Shell
Spark Plug Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Flat
Reach: 26.5mm (1.04")
Wrench Diameter: 5/8" (16mm)
Terminal Type: Solid
Gap: .031" (0.8mm)

Center Electrode
Electrode Tip Material: Iridium
Electrode Core Material: Copper

Ground Electrode
Material: Nickel
Type: Standard
Shape: Taper Cut

Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Manufacturer Heat Range: 6
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.

NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.