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Autolite 3924 - Autolite Copper Core Spark Plugs

  • Spark Plug, Copper Core, Gasket Seat, 14mm Thread, .750 in. Reach, Projected Tip, Resistor, Each
  • Application Specific
  • Estimated Ship Date: Today
 
BrandAutolite
Manufacturer's Part Number3924
Part TypeSpark Plugs
Product LineAutolite Copper Core Spark Plugs
Summit Racing Part NumberFRM-3924
 
Shorty Spark PlugNo
ResistorYes
Manufacturer Heat Range4
Electrode Core MaterialCopper
Electrode Tip MaterialCopper
Insulator TypeProjected
Spark Plug Thread Size14mm
Spark Plug Reach0.750 in.
Spark Plug Seat StyleGasket
Wrench Diameter5/8 in.
Ground Strap QuantityOne
QuantitySold individually.
 

These Autolite copper core spark plugs feature a cold-formed steel shell with precision-rolled threads, a full copper core electrode to provide better performance, and a one-piece terminal post to add strength. Autolite copper core spark plugs use a copper-glass seal that bonds the insulator and terminal post center electrode together. This ensures full voltage at the spark gap and a 100 percent leakproof, gas-tight seal. Autolite features an extensive application guide to cover just about everything with an internal combustion engine. Keep your engine running smoothly and reliably, simply by switching to some new Autolite copper core spark plugs.