Copper Spark Plug
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Copper Spark Plug
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Autolite Copper Spark Plug

Part No. 3923 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:5/8 in

REVIEW SNAPSHOT®

by PowerReviews
AutoliteCopper Spark Plug
 
4.2

(based on 5 reviews)

Ratings Distribution

  • 5 Stars

     

    (4)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (1)

80%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (3)

Cons

No Cons

Best Uses

  • Everyday driving (4)
  • Replacement (3)
    • Reviewer Profile:
    • Auto enthusiast (3)

Reviewed by 5 customers

Displaying reviews 1-5

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5.0

Perfect for my BMW R1100s motorcycle.

By 

from Stockton, NJ.

About Me Casual Driver

Verified Buyer

Pros

  • Durable

Cons

    Best Uses

    • Everyday Driving

    Comments about Autolite Copper Spark Plug:

    These work great as the Primary spark plug in my 2004 BMW R1100s. I have used other brands as well and these work just as well as anything else. I have 2 plugs per cylinder and use another brand as the secondary plug. The other brand in combination with the Autolite work very well.

    (2 of 4 customers found this review helpful)

     
    5.0

    great for the price

    By 

    from louisville kentucky

    About Me Casual Driver, Mechanic

    See all my reviews

    3 or more reviews submitted

    Pros

    • Improves Engine Efficiency
    • Increases Power

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about Autolite Copper Spark Plug:

      worked great!

      (2 of 4 customers found this review helpful)

       
      5.0

      Best plug for your Neon

      By 

      from Palm Coast Fl

      About Me Auto Enthusiast, Mechanic

      Pros

      • Better than OEM
      • Does The Job
      • Improves Engine Efficiency
      • Increases Power
      • Lowest Cost

      Cons

      • none

      Best Uses

      • Everyday Driving
      • Performance Driving
      • Racing
      • Replacement

      Comments about Autolite Copper Spark Plug:

      These plugs do the job for stock or performance. Somebody gave them a bad rating because they 'only' lasted 40,000 miles. You are supposed to change them at 30,000 miles so that is actually a positive review. Change the stars to 5. You can't beat them for a street driven Neon.

      (2 of 4 customers found this review helpful)

       
      5.0

      good cheap plug

      By 

      from Joliet Il

      About Me Auto Enthusiast

      Pros

      • Durable
      • Easy To Install
      • Improves Engine Efficiency

      Cons

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about Autolite Copper Spark Plug:

        My schedule recommends changing out plugs every 30 thousand miles. These autolights cheapos are fantastic. NGK were the ones installed at factory and Autolights far exceed there performance. I know they exceeded fuel milage since I bought this vehicle brand new and now with autolights get 2-3 miles more then original in city driving per gallon. Highway about 3 miles more then NGK

        (2 of 18 customers found this review helpful)

         
        1.0

        Not very good

        By 

        from Denver, CO

        About Me Auto Enthusiast

        See all my reviews

        3 or more reviews submitted

        Pros

        • Inexpensive

        Cons

        • Fails Quickly

        Best Uses

        • I Wouldn't Use

        Comments about Autolite Copper Spark Plug:

        These lasted less than 3 years and less than 40,000 miles used with the Autolite 97066 Spark Plug Wires. I bought the "Professional Grade" thinking they would last but they failed quickly.

        Displaying reviews 1-5

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