NGK 5068 IFR8H-11 Laser Iridium Spark Plug fits Honda CRF450R CRF450X

5068 / IFR8H11 - NGK Spark Plug with Solid Terminal

NGK single iridium 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

Shell

• 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: .043" (1.1mm)

Center Electrode

• Material: Iridium


• Type: Fine Wire


• Size: 1.0mm


• Projection: Projected

Ground Electrode

• Material: Platinum


• Type: Standard


• Shape: Taper Cut

Specifications

• Resistor: Yes


• Resistor Value: 5k Ohm


• Heat Range: 8


• Torque Specs:
  
  
  
  • Cast Iron: 18–25.3 lb-ft
  
  
  • Aluminum: 18–21.6 lb-ft
  
  
  
  

• Mfg Part No: 5068 IFR8H11
• Related Part No: 5068 IFR8H11