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Autolite 25 - Autolite Copper Core Spark Plugs

  • Spark Plug, Copper Core, Tapered Seat, 14mm Thread, .460 in. Reach, Projected Tip, Resistor, Each
  • Application Specific
  • Estimated Ship Date: Today
 
BrandAutolite
Manufacturer's Part Number25
Part TypeSpark Plugs
Product LineAutolite Copper Core Spark Plugs
Summit Racing Part NumberFRM-25
 
Shorty Spark PlugNo
ResistorYes
Manufacturer Heat Range5
Electrode Core MaterialCopper
Electrode Tip MaterialCopper
Insulator TypeProjected
Spark Plug Thread Size14mm
Spark Plug Reach0.460 in.
Spark Plug Seat StyleTapered
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.