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Bosch W4AS Silver Spark Plug

SKU #W4AS
ITEM #BOSW4AS
BRAND BOSCH

  • Interference Suppression Resistor

This item has been discontinued.
  • Description
    Bosch silver spark plugs are engineered to improve performance in any sport or racing application. Specifically engineered for colder racing applications, particularly those that run at full throttle, and not for traditional automotive use as they would quickly foul out. Silver enhanced center electrode conducts electricity better than copper or nickel. Silver has a lower melting point than nickel, so these plugs are engineered for high performance, not long life, and have a shorter life span.
  • Product Specifications
    • Shell
    • Thread Diameter14mm
    • Thread Pitch1.25mm
    • Seat TypeGasket
    • Reach12.7mm (1/2")
    • Hex Size13/16" (21mm)
    • Terminal TypeRemovable Nut
    • Center Electrode
    • MaterialSilver
    • TypeFine Wire
    • Size1.5mm
    • ProjectionNon-Projected
    • Ground Electrode
    • MaterialNickel
    • TypeStandard
    • ShapeTaper Cut
    • Quantity1
    • Specifications
    • ResistorNo
    • Heat Range4
    • Torque SpecsCast Iron: 15-29 lb. ft. Aluminum: 15-22 lb. ft.
    • Part Information
    • BrandBosch
    • WarrantySatisfaction Guarantee
  • Fitment

    Verify Fitment

    Automotive

    Sorry, no automotive applications are associated with this part.

    Powersports

    Sorry, no powersports applications are associated with this part.

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