NGK 6481 - Laser Iridium Spark Plug ILFR6B - 09-10 Subaru Impreza, 06-14 WRX & 04-18 STI
Laser Iridium® spark plugs provide superior ignitability and long service life. Smallest tip diameter available Iridium / Platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions
- Laser welded Iridium center electrode tip
- Platinum disc welded to backside of ground electrode provides long life
- Trivalent Metal Plating for superior anti-corrosion and anti-seizing
- Faster starts and quicker acceleration
- Better fuel economy and lower emissions
- Best OEM Iridium spark plug available
- Original Equipment Manufacturer approved design
NGK Laser Iridium spark plugs provide superior ignitability and long service life.
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.
- 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
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Thread Size: 14mm
- Thread Pitch: 1.25mm
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Seat Type: Gasket
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Resistor Value: 5K Ohm
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Reach: 26.5mm (1.04")
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Hex Size: 5/8" (16mm)
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Terminal Type: Solid
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Overall Height: ISO
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Gap: .031" (0.8mm)
Center Electrode
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Material: Iridium
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Type: Fine Wire
- Size: 0.6mm
- Projection: Projected
Ground Electrode
- Material: Platinum
- Type: Standard
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Quantity: 1
Specifications
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Warranty: 1 Year
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Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
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Brand: NGK
- Heat Range: 6
- Longevity: 100k Miles
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Resistor: Yes
Fitment
2004-2018 Subaru STI H4 2.5L FI EJ257 Gas 16v DOHC
2006-2014 Subaru WRX H4 2.5L FI EJ255 Gas 16v DOHC
2009-2010 Subaru Impreza H4 2.5L FI EJ255 Gas 16v DOHC
