NGK LTR7IX-11 6510 Iridium IX Spark Plug for Focus RS/ST


NGK-6510 (LTR7IX-11)


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NGK LTR7IX-11 Iridium IX spark plugs for the Focus RS and ST models. These are one step colder than stock with a heat range of 7, great for higher boost builds. Plugs are sold individually. Price is for one plug, please adjust quantity as needed.

Vehicle Fitment:
2016-2018 Ford Focus RS
2013-2018 Ford Focus ST

Part Number: LTR7IX-11
Stock Number: 6510
Heat Range: 7
Thread Size: 14mm

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More Info:
NGK IX Iridium Series plugs were designed specifically for the performance enthusiast.
  • Fine wire center electrode ensures high durability and a consistently stable spark
  • Iridium alloy has an extremely high melting point, perfect for today's high-tech, high performance engines
  • 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
Thread Size: 14mm
Thread Pitch: 1.25mm
Seat Type: Tapered
Resistor Value: 5K Ohm
Reach: 25mm (1")
Hex Size: 5/8" (16mm)
Terminal Type: Solid
Overall Height: ISO
Gap: .043" (1.1mm)

Center Electrode:
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Projected

Ground Electrode:
Material: Nickel
Type: Standard
Shape: Taper Cut
Quantity: 1

Torque Specs:
Cast Iron: 10.8-18 lb. ft.
Aluminum: 7.2-14.5 lb. ft.

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