Autolite 4055 Nickel Spark Plug

Traditional nickel electrodes. Copper core improves resistance to fouling. Power tip extends further into the combustion chamber to aid in self-cleaning, reducing fouling at low rpms and pre-ignition at high speeds.

• Shell
• Thread Diameter14mm
• Thread Pitch1.25mm
• Seat TypeGasket
• Reach19mm (3/4")
• Hex Size13/16" (21mm)
• Terminal TypeRemovable Nut
• Gap.024" (0.6mm)

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

• Ground Electrode
• MaterialNickel
• TypeStandard
• Quantity1

• Specifications
• ResistorNo
• Heat Range7
• Torque SpecsCast Iron: 26-29 lb. ft. Aluminum: 15-22 lb. ft.

• Part Information
• BrandAutolite
• Warranty2 Years
• Longevity30k Miles

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