Autolite Copper Spark Plug 303
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Autolite Copper Spark Plug 303

Autolite
516667
Part # 303
SKU # 516667

$289

PRODUCT SPECIFICATIONS

Part #303
SKU #516667
Weight0.15lbs
Ground Electrode DesignTapered
Seat StyleGasket
Gap - Factory Preset0.8 mm = 0.032 in
Metal TypeCopper
Electrical Terminal TypeRemovable Nut
Resistance (Ω)4000
Reach (in)0.374
Center Electrode DesignStandard / Regular
Insulator TypeProjected
Center Electrode Core MaterialCopper
Thread Size14 mm x 1.25
Drive Size13/16 in
Ground Electrode ConfigurationSingle
Center Electrode Tip MaterialNickel
Insulator MaterialCeramic
Ground Electrode Core MaterialNickel Alloy
Ground Electrode Tip MaterialNickel
Package Quantity1
ResistorYes
Part #
303
SKU #
516667
Weight
0.15lbs
Ground Electrode Design
Tapered
Seat Style
Gasket
Gap - Factory Preset
0.8 mm = 0.032 in
Metal Type
Copper
Electrical Terminal Type
Removable Nut
Resistance (Ω)
4000

PRODUCT DESCRIPTION

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration, Autolite Copper Core spark plugs are designed to meet or exceed design requirements. Consider upgrading to Autolite platinum, double platinum or iridium XP plugs for improved engine performance. Copper Core plugs are the industry standard.

  • checkmarkCopper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
  • checkmarkMulti-rib insulator reduces danger of "flash-over
  • checkmarkOne-piece terminal post adds strength
  • checkmarkResistor reduces radio frequency interference (RFI) and electrode erosion
  • checkmarkCold-formed steel shell precision rolled threads
  • checkmarkFull Copper Core electrode provides better performance in all conditions

Autolite has over 100 years of engineering experience and has sold over 11 billion plugs. Guaranteed to deliver quick starts, good fuel economy and smooth acceleration, Autolite Copper Core spark plugs are designed to meet or exceed design requirements. Consider upgrading to Autolite platinum, double platinum or iridium XP plugs for improved engine performance. Copper Core plugs are the industry standard.

  • checkmarkCopper-glass seal bonds insulator, terminal post center electrode together; assures full required voltage at spark gap; gas-tight seal (100% leak proof)
  • checkmarkMulti-rib insulator reduces danger of "flash-over
  • checkmarkOne-piece terminal post adds strength
  • checkmarkResistor reduces radio frequency interference (RFI) and electrode erosion
  • checkmarkCold-formed steel shell precision rolled threads
  • checkmarkFull Copper Core electrode provides better performance in all conditions