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Autolite 3923

Spark Plug Resistor

Autolite 3923

417-3923

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Autolite 3923 Spark Plug Resistor $2.99
Spark Plug
  • Resistor
  • Hex: 5/8"
  • Reach: 3/4"
  • Seat: Gasket
  • Thread Diameter: 14mm
  • Tip: Power

  • Specifications:

    Center Electrode Core Material
    Copper
    Center Electrode Tip Material
    Copper
    Insulator Material
    Ceramic
    Center Electrode Design
    Standard / Regular
    Thread Size
    14mm X 1.25
    Seat Style
    Gasket
    Ground Electrode Tip Material
    Copper
    Manufacturer Heat Range Number
    320
    Insulator Type
    Mid Projection
    Drive Size
    5/8" (16mm)
    Resistor
    Resistor
    Gap- Factory Preset
    .044"/1.1mm
    Reach (in)
    3/4"
    Manufacturer's Part Number:
    3923

    Autolite copper core spark plugs are guaranteed to deliver quick starts, good fuel economy & smooth acceleration.

    Does Autolite 3923 fit your vehicle?

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    • EngineType: L4 ( 1.4 L / 85 )

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    3923 - Autolite Copper Core Spark Plugs is rated 5.0 out of 5 by 2.
    Rated 5 out of 5 by from Works perfectly in AFR heads. I used these in my 396 small block with AFR 180s. These are a couple of heat values cooler than the recommended starting plugs. The bases appear to be stainless rather than the black that is shown in the image.
    Date published: 2017-10-29
    Rated 5 out of 5 by from Great Plugs . Worked as designed used in an Evanrude 150 Outboard.
    Date published: 2016-05-31
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