Champion 583 RHM83N Industrial Spark Plug

Champion’s four-prong ground electrode insert significantly increases the spark surface area for extended plug life, without the cost of precious metals. Requires lower voltage than platinum plugs. Shielded 3/4-20 connector for hazardous location use.

• Shell
• Thread Diameter18mm
• Thread Pitch1.5mm
• Seat TypeGasket
• Reach12.7mm (1/2")
• Hex Size7/8" (22mm)
• Terminal TypeShielded
• Gap.016" (0.4mm)

• Center Electrode
• MaterialNickel
• TypeOversized
• Size3.8mm
• ProjectionNon-Projected

• Ground Electrode
• MaterialNickel
• TypeMulti-Ground
• Quantity4

• Specifications
• ResistorYes
• Resistor TypeSAC9
• Heat Range83
• FeaturesShielded 3/4-20 Connector
• Torque SpecsCast Iron: 32-38 lb. ft. Aluminum: 28-34 lb. ft.

• Part Information
• BrandChampion
• Replacement GasketA-678

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