Champion 593 RD18Y Industrial Spark Plug

Copper-cored nickel center electrode with projected tip, J-gap design for optimum ignitability. Lower voltage requirement than precious metal plugs.

• Shell
• Thread Diameter18mm
• Thread Pitch1.5mm
• Seat TypeGasket
• Reach12.7mm (1/2")
• Hex Size7/8" (22mm)
• Terminal TypeSolid
• Gap.035" (0.9mm)

• Center Electrode
• MaterialNickel
• TypeOversized
• Size3.2mm
• ProjectionProjected

• Ground Electrode
• MaterialNickel
• TypeStandard
• Quantity1

• Specifications
• ResistorYes
• Resistor TypeSAC9
• Heat Range18
• Torque SpecsCast Iron: 32-38 lb. ft. Aluminum: 28-34 lb. ft.

• Part Information
• BrandChampion
• Replacement GasketA-678

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