NGK (SILFR6A) Laser Iridium Spark Plugs Subaru - WRX 2008-2014, Forester XT 2009-2013, Legacy GT 2005-2009 (Qty 4)

Fitment Information:

2009-2013 Subaru Forester

2008-2014 Subaru WRX

2013-2018 Subaru WRX STI

2005-2009 Legacy GT

2005-2009 Subaru Outback

2008-2009 Subaru Tribeca

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
• 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

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