NGK Spark Plug IZFR5G

Regular price $15.68
Sale price $15.68 Regular price
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NGK Laser Iridium spark plugs provide superior ignitability and long service life. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.
  • 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 Diameter:  14mm
  • Thread Pitch:  1.25mm
  • Seat Type:  Gasket
  • Reach:  19mm (3/4")
  • Hex Size:  5/8" (16mm)
  • Terminal Type:  Solid
  • Overall Height:  ISO
  • Gap:  .031" (0.8mm)
  • Center Electrode
  • Material:  Iridium
  • Type:  Fine Wire
  • Size:  0.6mm
  • Projection:  Extended Projection
  • Ground Electrode
  • Material:  Platinum
  • Type:  Standard
  • Shape:  Taper Cut
  • Quantity:  1
  • Specifications
  • Resistor:  Yes
  • Resistor Value:  5k Ohm
  • Heat Range:  5
  • Torque Specs:  Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.