Champion 121 RV8C Bel Air Biscayne Brookwood Caprice Copper Resistor Spark Plug

  • Sale
  • Regular price $5.95
  • 5 available


  • Copper Resistor Spark Plug
  • Shell
    • Thread Size: 14mm
    • Seat Type: Tapered
    • Resistor: Yes
    • Resistor Type: SAC9
    • Reach: 11.6mm (.460")
    • Hex Size: 5/8" (16mm)
    • Terminal Type: Solid
    • Gap: .039" (1.0mm)
  • Conventional Spark Plug with Nickel Alloy Electrodes. 
  • Copper Core Center Electrode Allows for Increased Conductivity and Heat Control.
  • Manufacturer: Champion
  • Model Number: 121 
  • Part Number: RV8C
  • Also Known As: RF4, R43T, 4339492, R42T
  • For use with:
    • Bel Air
    • Biscayne
    • Brookwood
    • Caprice
    • Camaro
    • Chevelle
    • Corvette
    • And many more.