Set of 4 NGK R-2556G-9 Spark Plugs

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SKU:
R-2556G-9-4
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Set of 4 NGK R-2556G-9 Spark Plugs
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Info

SKU:R-2556G-9-4

Info

SKU:
R-2556G-9-4

Description

NGK Racing Series plugs are engineered to withstand the harshest engine conditions.

At a NGK Heat Range 9 equivalent, these plugs will ensure there is less heat when you are making more power. We highly recommend this plug when running our Tunes!

Here is a good article on Spark Plug basics by NGK.

Fine wire iridium tipped center electrode and platinum tipped ground electrode improve ignitability, increase durability and enhance anti fouling capabilities. Special insulator nose configurations improve throttle response. 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
  • Thread Diameter12mm
  • Thread Pitch1.25mm
  • Seat TypeGasket
  • Reach26.5mm (1.04")
  • Hex Size5/8" (16mm)
  • Terminal TypeSolid
  • Gap.028" (0.7mm)
Center Electrode
  • MaterialIridium
  • TypeFine Wire
  • Size0.6mm
  • ProjectionRecessed
Ground Electrode
  • MaterialPlatinum
  • TypeSlant
  • Quantity1
Specifications
  • ResistorYes
  • Resistor Value5k Ohm
  • Heat Range9
  • Torque SpecsCast Iron: 10.8-18 lb. ft. Aluminum: 10.8-14.5 lb. ft.
Part Information
  • BrandNGK/NTK
  • Warranty60 Days

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