Denso 4163 U31FER-ZU9 Platinum U-Groove Spark Plug

SKU #U31FER-ZU9
ITEM #DEN4163
BRAND DENSO

Item has been discontinued. This product may be used as a replacement:

Denso 4182 U31FER9 Nickel Spark Plug

SKU #U31FER9

ITEM #DEN4182

  • Description
    Denso platinum spark plugs provide superior resistance to erosion and corrosion, enabling extended operation. Taper cut, U-Groove ground electrode design gives the flame a groove to grow in, resulting in less flame dissipation and a larger flame front for a more complete combustion. This translates to better fuel efficiency and improved throttle response. Machine rolled threads prevent seizing or cross threading during installation and removal. 100% pre-fired to assure the highest quality possible. Purified alumina powder insulator provides exceptional strength and thermal conductivity. Five rib insulator prevents flashover. Copper-glass seal bonds center electrode and insulator for a gas-tight seal.
  • Product Specifications
    • Shell
    • Thread Diameter10mm
    • Thread Pitch1.0mm
    • Seat TypeGasket
    • Reach19mm (3/4")
    • Hex Size5/8" (16mm)
    • Gap.035" (0.9mm)
    • Center Electrode
    • MaterialPlatinum
    • TypeFine Wire
    • Size0.7mm
    • Ground Electrode
    • MaterialNickel
    • TypeU-Groove
    • ShapeTaper Cut
    • Quantity1
    • Specifications
    • ResistorYes
    • Heat Range31
    • Torque SpecsCast Iron: 7-11 lb. ft. Aluminum: 7-11 lb. ft.
    • Part Information
    • BrandDenso
    • Warranty12 Months
    • Longevity20-30k Miles
  • 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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