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NGK 3657 Laser Iridium Spark Plug IZFR5K11 NGK 3657 Laser Iridium Spark Plug IZFR5K11 NGK Laser Iridium ® spark plugs provide superior ignitability and long service life. The smallest tip diameter available Iridium / Platinum surfaces ensure a slow wear rate providing stable idle, superior anti-fouling, improved fuel efficiency, and lower emissions. Features & Benefits Laser Welded Iridium Center Electrode Tip Platinum Disc Welded To Backside Of Ground Electrode Provides Long Life Trivalent Metal Plating Provides Superior Anti-Corrosion And Anti-Seizing Properties Faster Starts And Quicker Acceleration Better Fuel Economy And Lower Emissions Best OEM Iridium Spark Plug Available No Supplier Warranty Attributes Resistor: Yes Electrode Type: Taper Cut Electrode Core Material: Iridium Electrode Tip Material: Platinum Insulator Type: Extended Projection Thread Size (IN): 0.551 Inch Quantity: Single Reach: 3/4 Inch Seat Type: Gasket Wrench Diameter: 5/8 Inch
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NGK 3657 Laser Iridium Spark Plug IZFR5K11
Part Number : 3657
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NGK 3657 Laser Iridium Spark Plug IZFR5K11
NGK 3657 Laser Iridium Spark Plug IZFR5K11
NGK 3657 Laser Iridium Spark Plug IZFR5K11
NGK 3657 Laser Iridium Spark Plug IZFR5K11
$19.57 $14.09
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Laser Iridium ® spark plugs provide superior ignitability and long service life. The smallest tip diameter available Iridium / Platinum surfaces ensure a slow wear rate providing stable idle, superior anti-fouling, improved fuel efficiency, and lower emissions.

Features & Benefits

  • Laser Welded Iridium Center Electrode Tip
  • Platinum Disc Welded To Backside Of Ground Electrode Provides Long Life
  • Trivalent Metal Plating Provides Superior Anti-Corrosion And Anti-Seizing Properties
  • Faster Starts And Quicker Acceleration
  • Better Fuel Economy And Lower Emissions
  • Best OEM Iridium Spark Plug Available
  • No Supplier Warranty

Attributes

  • Resistor: Yes
  • Electrode Type: Taper Cut
  • Electrode Core Material: Iridium
  • Electrode Tip Material: Platinum
  • Insulator Type: Extended Projection
  • Thread Size (IN): 0.551 Inch
  • Quantity: Single
  • Reach: 3/4 Inch
  • Seat Type: Gasket
  • Wrench Diameter: 5/8 Inch

Laser Iridium ® spark plugs provide superior ignitability and long service life. The smallest tip diameter available Iridium / Platinum surfaces ensure a slow wear rate providing stable idle, superior anti-fouling, improved fuel efficiency, and lower emissions.

Features & Benefits

  • Laser Welded Iridium Center Electrode Tip
  • Platinum Disc Welded To Backside Of Ground Electrode Provides Long Life
  • Trivalent Metal Plating Provides Superior Anti-Corrosion And Anti-Seizing Properties
  • Faster Starts And Quicker Acceleration
  • Better Fuel Economy And Lower Emissions
  • Best OEM Iridium Spark Plug Available
  • No Supplier Warranty

Attributes

  • Resistor: Yes
  • Electrode Type: Taper Cut
  • Electrode Core Material: Iridium
  • Electrode Tip Material: Platinum
  • Insulator Type: Extended Projection
  • Thread Size (IN): 0.551 Inch
  • Quantity: Single
  • Reach: 3/4 Inch
  • Seat Type: Gasket
  • Wrench Diameter: 5/8 Inch