Champion 678 QL57 Racing Plug

Champion racing series plugs include all the features of their conventional plugs, but are built with extreme engine conditions and durability in mind. Nickel alloy ground electrode. Copper-cored nickel alloy center electrode allows for increased conductivity and heat control.

• Shell
• Thread Diameter14mm
• Thread Pitch1.25mm
• Seat TypeGasket
• Reach12.7mm (1/2")
• Hex Size13/16" (21mm)
• Terminal TypeSolid
• Gap.026" (0.65mm)

• Center Electrode
• MaterialNickel
• TypeFine Wire
• Size1.3mm
• ProjectionNon-Projected

• Ground Electrode
• MaterialNickel
• TypeStandard
• Quantity1

• Specifications
• ResistorYes
• Resistor TypeInductive
• Heat Range57
• Torque SpecsCast Iron: 26-30 lb. ft. Aluminum: 18-22 lb. ft.

• Part Information
• BrandChampion

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