Copper Spark Plug
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Copper Spark Plug
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Autolite Copper Spark Plug

Part No. 63 Warranty Details  

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Autolite Copper Spark Plugs are guaranteed to deliver quick starts, good fuel economy and smooth acceleration.

Product Features:
  • Copper cored center electrode for higher thermal conductivity
  • Specially engineered high nickel alloy center and ground electrode for extended life
  • High alumina ceramic for high dielectric strength
  • Leak proof, heat fused internal seal for durability
  • Multi-rib insulator prevents flash-over
  • 2 year limited warranty
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Electrode Tip Material:Resistor
Reach:3/4 in
Resistor:Suppressor
Seat Type:Gasket
Thread Diameter:14 mm
Tip Configuration:Power
Wrench Diameter:13/16 in

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1 Question | 1 Answer
Displaying question 1
  • Q:

    What does the heat range spec of D12 mean for the Autolite 63 spark plug? I'm not familiar with a heat range starting with a letter. Is it a heat range of 12? What does the D indicate?
    Asked on 8/4/2014 by Tom

    1 answer

    • CUSTOMER CARE

      A:

      I'd be happy to help you with that! Every manufacturer specifies the heat range rating however they prefer. There is not a standardized measurement system in place for the plug heat range unfortunately. I located a heat range chart from Autolite using Google. The letter signifies the type of plug it is; in this case 'D' is a power tip plug. This plug looks to be a mid temp plug. If you Google "autolite heat range" you will find the heat range chart as well as a conversion chart from other brand's heat ranges to Autolite's.

      Answered on 8/6/2014 by Anonymous
Displaying question 1

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