NGK LZTR6AIX-13 Iridium IX Spark Plug

NGK LZTR6AIX-13 Iridium IX Spark Plug

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Part Number: LZTR6AIX-13
Manufacturer: NGK
On Sale: $9.96

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Product Note:

Iridium IX Spark Plug


Center Electrode Core Material: Copper Core
Center Electrode Tip Material: Iridium
Gap Size: 0.052
Ground Configuration: Standard
Ground Electrode Core Material: Nickel Core
Ground Electrode Quantity: 1
Ground Electrode Tip Design: Taper Cut
Hex Size: 5/8in
Insulator Height: 55.00
Insulator Height: ISO
Manufacturer Heat Range: 6
Reach: 25mm
Reach: 25.00
Resistance: 5K Ohm
Seat Type: Tapered
Thread Diameter: 14
Thread Diameter: 0.551

Designed specifically for the performance enthusiast, NGK Iridium IX plugs offer super-efficient ignition, improved throttle response, and superior anti-fouling.


  • Fine Iridium tip ensures longevity.
  • Iridium alloy has an extremely high melting point, perfect for today’s high-tech performance engines.
  • “Trivalent Metal Plating” provides superior anti-corrosion and anti-seizing properties.
  • Outstanding acceleration, fuel efficiency, and durability.

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Year Make Model Trim Engine Vehicle Fit Notes






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