NGK 4548 CR9EK Multi-Ground Spark Plug

• Multi-ground electrodes improve ignition capabilities and are less sensitive to increased voltage requirements due to gap growth. Designed to specific manufacturer ignition requirements, NGK's multi-ground plugs maintain all the features of their standard plugs, including:
  

  • Corrugated Ribs to Prevent Flashover
  • Pure alumina silicate ceramic insulator, providing superior strength and better heat transfer
  • Copper core to aid in heat removal
  • Triple seals to prevent leakage

   

  • Shell
  • Thread Diameter10mm
  • Thread Pitch1.0mm
  • Seat TypeGasket
  • Reach19mm (3/4")
  • Hex Size5/8" (16mm)
  • Terminal TypeThreaded Stud
  • Overall HeightISO
  • Gap.028" (0.7mm)

  • Center Electrode
  • MaterialNickel
  • TypeStandard
  • Size2.5mm
  • ProjectionProjected

  • Ground Electrode
  • MaterialNickel
  • TypeMulti-Ground
  • Quantity2

  • Specifications
  • ResistorYes
  • Resistor Value5k Ohm
  • Heat Range9
  • Torque SpecsCast Iron: 7.2-10.8 lb. ft. Aluminum: 7.2-8.7 lb. ft.

  • Part Information
  • BrandNGK/NTK
  • Warranty60 Days
  • Longevity50k Miles