Champion 537 RH12 Nickel Spark Plug

Conventional spark plug with nickel alloy electrodes. Copper core center electrode allows for increased conductivity and heat control.

• Shell
• Thread Diameter14mm
• Thread Pitch1.25mm
• Seat TypeGasket
• Reach11mm (7/16")
• Hex Size13/16" (21mm)
• Terminal TypeSolid
• Gap.030" (0.75mm)

• Center Electrode
• MaterialNickel
• TypeStandard
• Size2.5mm
• ProjectionNon-Projected

• Ground Electrode
• MaterialNickel
• TypeStandard
• Quantity1

• Specifications
• ResistorYes
• Resistor TypeSAC9
• Heat Range12
• Torque SpecsCast Iron: 26-30 lb. ft. Aluminum: 18-22 lb. ft.

• Part Information
• BrandChampion
• Warranty2 Years
• Longevity20K Miles

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