Copper Core Resistor Spark Plug
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Autolite Copper Core Resistor Spark Plug

Part No. 5224 Warranty Details  

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Designed to help deliver quick starts, good fuel economy and smooth acceleration.

Product Features:
  • Copper core electrode and nickel chromium alloy side electrode offer enhanced heat dissipation and durability
  • Resistor reduces radio frequency interference (RFI) and electrode erosion
  • Copper-glass seal bonds insulator, terminal post center electrode together; helps ensure full required voltage at spark gap; gas-tight seal
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Electrode Tip Material:Resistor
Manufacturer Heat Range:D11
Spark Plug Reach:3/4 in
Spark Plug Seat Type:Gasket
Spark Plug Thread Size:14 mm
Tip Configuration:Special Power
Wrench Diameter:5/8


by PowerReviews
AutoliteCopper Core Resistor Spark Plug

(based on 1 review)

Ratings Distribution

  • 5 Stars



  • 4 Stars



  • 3 Stars



  • 2 Stars



  • 1 Stars



Reviewed by 1 customer

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(6 of 16 customers found this review helpful)




from chicago

Verified Buyer
Helpful Reviewer


  • Easy To Install
  • Improves Engine Efficiency


    Best Uses

    • Replacement

    Comments about Autolite Copper Core Resistor Spark Plug:

    you get what you pay for. next time i am going to buy the premium spark plugs. my engine starts up a bit faster in the morning now though

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