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Champion 409 RF9YC Custom Fairlane 18mm Thread Copper Plus Resistor Spark Plug
- 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.
- Manufacturer: Champion
- Model Number: 409
- Part Number: RF9YC
- Also Known As: WR5, 4226, BF22, 83TS, 8RF42
- For use with:
- Custom
- Fairlane
- Shelby Cobra
- Country Sedan
- Mustang
- Ranch Wagon
- And many more.