Champion 409 RF9YC Custom Fairlane 18mm Thread Copper Plus Resistor Spark Plug

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  • Regular price $5.95
  • 1 available


  • 18mm Thread Copper Plus Resistor Spark Plug
  • Shell
    • Thread Size: 18mm
    • Seat Type: Tapered
    • Resistor: Yes
    • Resistor Type: SAC9
    • Reach: 11.6mm (.460")
    • Hex Size: 13/16" (21mm)
    • Terminal Type: Solid
    • Gap: .035" (0.9mm)
  • Conventional Spark Plug with Nickel Alloy Electrodes. 
  • Copper Core Center Electrode Allows for Increased Conductivity and Heat Control.
  • For use with:
    • Custom
    • Fairlane
    • Shelby Cobra
    • Country Sedan
    • Mustang
    • Ranch Wagon
    • And many more.
  • Manufacturer: Champion
  • Model Number: 409
  • Part Number: RF9YC
  • Also Known As: WR5, 4226, BF22, 83TS, 8RF42