Denso Platinum TT Spark Plug 4502
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Denso Platinum TT Spark Plug 4502

Part # 4502
SKU # 181881



Part #4502
SKU #181881
Ground Electrode DesignTwin Tip
Seat StyleGasket
Metal TypePlatinum
Gap - Factory Preset1.0 mm = 0.040 in
Electrical Terminal TypeNon-Removable Nut
Resistance (Ω)5
Center Electrode DesignFine Wire
Insulator TypeNon-Projected
Short StyleNo
Center Electrode Core MaterialCopper
Thread Size14 mm
Drive Size13/16 in
Ground Electrode ConfigurationSingle
Center Electrode Tip MaterialPlatinum
Ground Electrode Core MaterialNickel Alloy
Insulator MaterialCeramic
Ground Electrode Tip MaterialTitanium Alloy
Manufacturer Heat Range Number20
Package Quantity1


Twin-tip design enables faster flame propagation for more complete combustion.

  • checkmarkTwin-tip technology with 11 mm platinum center electrode and 11 mm titanium enhanced ground electrode
  • checkmarkImprove fuel economy, better acceleration and faster starts than all other single platinum plugs
  • checkmarkCopper-glass seal bonds the center electrode and insulator together for a gas-tight seal; maintains proper heat and excludes hot combustion gases
  • checkmarkPurified alumina powder insulator provides exceptional dielectric strength and thermal conductivity, allowing the material to stand up to extreme stress