Copper Spark Plug
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Autolite Copper Spark Plug

Part No. 5125 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:.460 in
Resistor:Suppressor
Seat Type:Tapered
Thread Diameter:18 mm
Tip Configuration:Power
Wrench Diameter:13/16 in

REVIEW SNAPSHOT®

by PowerReviews
AutoliteCopper Spark Plug
 
4.7

(based on 3 reviews)

Ratings Distribution

  • 5 Stars

     

    (2)

  • 4 Stars

     

    (1)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (3)
  • Increases power (3)

Cons

No Cons

Best Uses

  • Replacement (3)

Reviewed by 3 customers

Displaying reviews 1-3

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5.0

Great Replacement

By 

from Rolesville, NC

About Me Casual Driver

See all my reviews

Ask me a question

Verified Buyer
3 or more reviews submitted

Pros

  • Improves Engine Efficiency
  • Increases Power
  • Perfect For F150 49

Cons

    Best Uses

    • F150 49 Engine
    • Replacement

    Comments about Autolite Copper Spark Plug:

    Perfect replacement for Ford F150 4.9 engine.

    Comment on this reviewHelp Icon

     
    5.0

    Great Part! Great Seller!

    By 

    from Hudson,MI.

    About Me Mechanic, Truck Enthusiast

    See all my reviews

    Verified Buyer
    Helpful Reviewer

    Pros

    • Durable
    • Easy To Install
    • Improves Engine Efficiency
    • Increases Power

    Cons

      Best Uses

      • Everyday Driving
      • Performance Driving
      • Racing
      • Replacement
      • Restoration

      Comments about Autolite Copper Spark Plug:

      These are great plugs for the Ford 4.9L inline 6.They last a long time and are very reasonable.They are not good for some of the new very hot ignition systems,for that you need a double platinum or iridium plug,which they also carry.They are great for the 300c.i.d. Ford inline 6 because they don't use excessive power and have a very long life.I depend on my truck for several 800 mile trips per year and I know I can count on these spark plugs.I usually change them every 2 yrs just as preventative maintenance,never because one failed.

      Comment on this reviewHelp Icon

       
      4.0

      Autolite always a trusted name.

      By 

      from Southern NJ

      About Me Casual Driver

      See all my reviews

      Verified Buyer
      3 or more reviews submitted

      Pros

      • Durable
      • Easy To Install
      • Improves Engine Efficiency
      • Increases Power

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Autolite Copper Spark Plug:

        Plugs seated and went in without any problem. Always have used this brand and will continue. Dont forget your anti sieze.

        Comment on this reviewHelp Icon

        Displaying reviews 1-3

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