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Picture of Autolite AP403 Platinum Spark Plug
Picture of Autolite AP403 Platinum Spark Plug
Picture of Autolite AP403 Platinum Spark Plug
Picture of Autolite AP403 Platinum Spark Plug
Picture of Autolite AP403 Platinum Spark Plug

Autolite AP403 Platinum Spark Plug

SKU #AP403
ITEM #AUTAP403
BRAND AUTOLITE
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  • Removable Terminal Nut
  • Standard Packaging
This item has been discontinued.
  • Description

    Platinum tipped center electrode delivers precision firing, reduced gap erosion, increased durability, and improved fuel efficiency over the life of the plug. Copper core improves resistance to fouling.

  • Product Specifications
    • Shell
    • Thread Diameter14mm
    • Thread Pitch1.25mm
    • Seat TypeGasket
    • Reach19mm (3/4")
    • Hex Size13/16" (21mm)
    • Terminal TypeRemovable Nut
    • Gap.035" (0.9mm)
    • Center Electrode
    • MaterialPlatinum
    • TypeNecked Down
    • ProjectionNon-Projected
    • Ground Electrode
    • MaterialNickel
    • TypeStandard
    • Quantity1
    • Specifications
    • ResistorYes
    • Resistor Value5k Ohm
    • Heat Range7
    • Torque SpecsCast Iron: 26-29 lb. ft. Aluminum: 15-22 lb. ft.
    • Part Information
    • BrandAutolite
    • Warranty4 Years
    • Longevity50k Miles
  • Fitment

    Verify Fitment

    Automotive

    Sorry, no automotive applications are associated with this part.

    Powersports

    Sorry, no powersports applications are associated with this part.

    Non-Automotive

    Sorry, no non-automotive applications are associated with this part.