Professional Iridium Spark Plug
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ACDelco Professional Iridium Spark Plug

Part No. 41-100 Warranty Details  

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ACDelco is a global leader in automotive replacement parts and related services and offers quality aftermarket products for most makes and models, including General Motors, Ford, Chrysler, Toyota and Honda, plus many original equipment service replacement parts. ACDelco products can be found in more than 100 countries located on six of the seven continents and are sourced globally to meet the needs of the local markets, including "maintenance" parts commonly replaced during the lifetime of a vehicle (e.g., batteries, oil filters, air filters, wiper blades, shocks and brakes), as well as "repair" parts (e.g., alternators, radiators, chassis and heating/cooling components). ACDelco offers more than 80,000 parts across 37 product lines.

ACDelco has over 100 years of experience in the automotive industry and is a brand of GM Customer Care and Aftersales, a division of General Motors. ACDelco employs a two- or three-tiered distribution model, utilizing a network of appointed wholesale distributors to service independent installers, ACDelco independent service centers, retail and fleet customers.

Product Features:

  • The kind of firepower you expect from ACDelco. The spark plug is what started it all for us, and with over 100 years of innovation behind each spark plug, you know they're going to be great. From the old to the new and even the non-automotive, ACDelco has a spark plug to fit just about whatever your need may be.
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Electrode Core Material:Copper
Electrode Tip Material:Iridium
Reach:0.708 in
Resistor:Yes
Seat Type:Tapered
Thread Diameter:14 mm

REVIEW SNAPSHOT®

by PowerReviews
ACDelcoProfessional Iridium Spark Plug
 
5.0

(based on 6 reviews)

Ratings Distribution

  • 5 Stars

     

    (6)

  • 4 Stars

     

    (0)

  • 3 Stars

     

    (0)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

100%

of respondents would recommend this to a friend.

Pros

  • Durable (4)

Cons

No Cons

Best Uses

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

Reviewed by 6 customers

Displaying reviews 1-6

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5.0

OEM factory replacement at a great price

By 

from Carrollton, Ohio

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Ask any GM tech and he'll tell you ACDelco plugs are all you want in your GM vehicle, quality is second to none.

  • Was this a gift?:
  • No

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5.0

I would buy again

By 

from Gary ,in

See all my reviews

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Great part does what its suppose to do

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(1 of 4 customers found this review helpful)

 
5.0

exact OEM replacement part - none better

By 

from USA

About Me Auto Enthusiast

Ask me a question

Verified Buyer

Pros

  • Durable

Cons

    Best Uses

    • Replacement

    Comments about ACDelco Professional Iridium Spark Plug:

    bought these because they had a rebate. Filed the rebate on-line (store didn't have rebate forms) and after 2 weeks find out the rebate form was rejected. Will be returning the plugs and waiting for them to go on sale again.

    Comment on this reviewHelp Icon

    (1 of 1 customers found this review helpful)

     
    5.0

    Well worth the extra cost

    By 

    from Columbus, Ohio

    About Me Casual Driver, Mechanic

    See all my reviews

    Ask me a question

    3 or more reviews submitted

    Pros

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

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about ACDelco Professional Iridium Spark Plug:

      I purchased six of these plugs for a 2006 Impala LS with a 3.5 engine. All plugs were found to be properly pre-gapped at .040. After installing these plugs and also replacing the plug wires and ignition coil, the idle was perfectly smooth and crisp at all speeds. It is wise to apply anti-seize compound to the threads when installing and do not over-torque when tightening.

      Comment on this reviewHelp Icon

      (1 of 1 customers found this review helpful)

       
      5.0

      great prouduct

      By 

      from jacksonville,fl

      About Me Auto Enthusiast, Mechanic

      See all my reviews

      Ask me a question

      Verified Buyer
      3 or more reviews submitted

      Pros

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

      Cons

        Best Uses

        • Everyday Driving
        • Replacement
        • Restoration

        Comments about ACDelco Professional Iridium Spark Plug:

        high quality OE product just what is needed to achieve a good and perfect tune-up to this GM 3.5 engine

        Comment on this reviewHelp Icon

        (1 of 1 customers found this review helpful)

         
        5.0

        I would buy this product again...

        By 

        from Ashburn, VA

        About Me Auto Enthusiast, Casual Driver, Retired ASE tech

        See all my reviews

        Ask me a question

        Verified Buyer
        3 or more reviews submitted

        Pros

        • Durable
        • Fronts easy to install

        Cons

        • No Improvement In Performance
        • Rears diff to install

        Best Uses

        • Everyday Driving
        • Replacement

        Comments about ACDelco Professional Iridium Spark Plug:

        Store only had one plug in stock, however I only needed one plug at the time...

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        Displaying reviews 1-6

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        Do you have questions about this product?

         

        Ask a question, get answers from real customers and in-house experts. For further assistance, please review your support options on our Contact Us page.

        3 Questions | 3 Answers
        Displaying questions 1-3
        • Q:

          Why are these plug gap at .40 and other brands for the same model gap at .60
          Asked on 4/26/2014 by tom

          1 answer

          • CUSTOMER CARE

            A:

            Hi Tom, glad to assist you! In order to check the gap difference, please provide us the part number for the spark plug that you are referring to and also provide us the year, make, model and engine size of your vehicle.

            Answered on 4/28/2014 by Steve from AAP
        • Q:

          ARE THESE PLUGS ALREADY PRE-GAPPED? IN THE OLD DAYS U NEEDED A FEELER GUAGE IN YOUR TOOL BOX,THOSE PLUGS WERE ALWAYS OUT OF WACK!
          Asked on 5/27/2013 by CHESSMAN from BROOKLYN NY

          1 answer

          • CUSTOMER CARE

            A:

            Yes, the ACDelco Spark Plug - Part No. 41-100 is pre-gapped at 0.040". For any further assistance please feel free to call us at: 1-877-238-2623 or visit the nearest Advance Auto Parts store and one of our Parts Pros will gladly assist you with any questions or concerns you may have.

            Answered on 5/27/2013 by John the Car-Doc from AAP
        • Q:

          I was just wondering what makes these better than the Bosch plugs.as there is about a three dollar difference in price for each plug'''I don't mind spending the extra money if it is a better plug also what wire set would you recommend for my 2006 Chevy impala3.5 l 6 Cy
          Asked on 3/19/2012 by Anonymous

          1 answer

          • CUSTOMER CARE

            A:

            There is not much difference between the ACDelco Spark Plug and Bosch Spark plugs. General recommendation is that Bosch runs better on Ford and ACDelco/Autolite on GM vehicles. Please check the Autolite Coil-On-Plug Set with Part No. 97131 which would be the ideal spark plug wire set.

            Answered on 3/22/2012 by John the Car-Doc from AAP
        Displaying questions 1-3

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