General Motors Original Equipment Iridium Spark Plug
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ACDelco General Motors Original Equipment Iridium Spark Plug

Part No. 41-110 Warranty  

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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.

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Electrode Core Material:Copper
Electrode Tip Material:Iridium
Resistor:Yes
Spark Plug Seat Type:Tapered
Spark Plug Thread Size:14

REVIEW SNAPSHOT®

by PowerReviews
ACDelcoGeneral Motors Original Equipment Iridium Spark Plug
 
4.8

(based on 52 reviews)

Ratings Distribution

  • 5 Stars

     

    (42)

  • 4 Stars

     

    (8)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

96%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (37)
  • Easy to install (35)
  • Durable (29)
  • Increases power (28)
  • Lightweight (6)

Cons

  • No improvement in performance (3)

Best Uses

  • Everyday driving (42)
  • Replacement (32)
  • Performance driving (7)
  • Restoration (5)
    • Car & Truck:
    • Auto enthusiast (7), Truck enthusiast (7), Casual driver (6)
    • Reviewer Profile:
    • Casual driver (19), Auto enthusiast (13), Truck enthusiast (12), Mechanic (9), Competitive driver (3)

Most Liked Positive Review

 

Great Sparkplugs

I bought these after having numerous problems with the overrated E3's I had in my LS1 Camaro. The car runs so much stronger and all the problems I experienced with the E3's disappeared...Read complete review

I bought these after having numerous problems with the overrated E3's I had in my LS1 Camaro. The car runs so much stronger and all the problems I experienced with the E3's disappeared when the AC Delco iridium plugs went in. Overall stick with these or NGK's for your LSx vehicle, they are the only ones myself and others have found that work best for these cars.

VS

Most Liked Negative Review

 

OK plugs but no rebate

The spark plugs did what they were supposed to do. However, there was a rebate advertized for them and the store on Market street gave me the rebate form but it was not the ...Read complete review

The spark plugs did what they were supposed to do. However, there was a rebate advertized for them and the store on Market street gave me the rebate form but it was not the right one and I missed out on the rebate of two dollars each. Needless to say i am not very happy with you guys.

Reviewed by 52 customers

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Displaying reviews 1-10

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(1 of 1 customers found this review helpful)

 
5.0

Scheduled Maintainance

By roadrunnr246

from upstate, NY

About Me Casual Driver

Verified Buyer
Level 1

Pros

  • Durable
  • Slight Mileage Increase

Cons

    Best Uses

    • Everyday Driving
    • Replacement

    Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

    Original plugs didn't look bad for 108K but replaced anyway. Wires were stuck fast--destroyed two during removal. Just buy them too or you may be making a second parts run.

    Comment on this review(earn points)

     
    5.0

    As Described

    By Scooterb63

    from North Port FL

    Verified Buyer
    Level 3

    Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

    As Described

    Comment on this review(earn points)

    (1 of 1 customers found this review helpful)

     
    5.0

    Ac plugs

    By Ajf

    from Raleigh

    About Me Auto Enthusiast, Casual Driver

    Verified Buyer
    Level 1

    Pros

    • Durable
    • Improves Engine Efficiency

    Cons

      Best Uses

      • Everyday Driving
      • Replacement

      Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

      Perfect replacement part for my 5.3 Chevrolet. Perfect gap right out-of-the-box. The identical part I took out had 150,000 miles on them and actually looked okay.

      Comment on this review(earn points)

       
      5.0

      Good stuff.

      By 66harley

      from Friendsville, TN.

      About Me Auto Enthusiast, Competitive Driver, Mechanic, Truck Enthusiast

      Verified Buyer
      Level 3

      Pros

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

      Cons

        Best Uses

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

        Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

        Replaced the OEM plugs in my 99 Silverado with the 5.3 engine at 86,000 miles. The original plug tips were gone and I was losing gas mileage plus I had a rough idle. These plugs restored my mileage and smooth engine. I haven`t had them in long, but the mileage is looking to be better than when the truck was new. I left the gap at .040 out of the box, since I read that the OEM gap of .060 was wrong for these plugs. Use anti-seize for the aluminum heads!

        Comment on this review(earn points)

         
        5.0

        AC Delco Plugs do the job

        By T- Man

        from Houtzdale,PA

        About Me Casual Driver

        Ask me a question

        Verified Buyer
        Level 2

        Pros

        • Easy To Install
        • Improves Engine Efficiency
        • Increases Power

        Cons

          Best Uses

          • Everyday Driving
          • Replacement

          Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

          Needed to replace plugs to improve performance.
          Highly rated spark plug. Advance Auto provides
          excellent service and great prices.

          Comment on this review(earn points)

          (1 of 1 customers found this review helpful)

           
          5.0

          ACDelco Iridium Spark Plugs

          By TJ

          from Lexington,SC

          About Me Casual Driver

          Verified Buyer
          Level 1

          Pros

          • Durable
          • Fuel Saving
          • Improves Engine Efficiency
          • Increases Power

          Cons

            Best Uses

            • Everyday Driving
            • Replacement

            Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

            Advance had the best deal on these iridium spark plugs. If your chosing spark plugs, your best bet is put in a set that will last the longest. It came down to Bosch or AC Delco, I'm partial to GM so it was AC Delco for me.

            Comment on this review(earn points)

             
            5.0

            Great Product

            By Lobo

            from Katy, TX.

            About Me Auto Enthusiast, Casual Driver, Truck Enthusiast

            Ask me a question

            Verified Buyer
            Level 3

            Pros

            • Improves Engine Efficiency
            • Increases Power
            • Regained Mpg
            • Runs Smoother

            Cons

              Best Uses

              • Everyday Driving
              • Replacement

              Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

              The last pair went 105K, hope I get the same performance with these.
              Becareful, they have a fine tip that you do not want to damage.

              Comment on this review(earn points)

               
              5.0

              GM OEM Spark Plugs

              By Randy

              from Grand Rapids, MI

              Verified Buyer
              Level 2

              Pros

              • Easy To Install

              Cons

              • Had To Set Gap

              Best Uses

              • Everyday Driving

              Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

              I thought the gaps were set at the factory but had to set the gap for each one.

              Comment on this review(earn points)

              (0 of 1 customers found this review helpful)

               
              5.0

              Spark Plug OEM Replacement

              By Marauder

              from PA

              About Me Casual Driver

              Verified Buyer
              Level 1

              Pros

              • Durable
              • Improves Engine Efficiency

              Cons

                Best Uses

                • Everyday Driving
                • Replacement

                Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

                Different part number than the plugs originally installed by Buick BUT exact fit and replacement. Looks were different but no problems installing and performance is superb. Don't hesitate to buy these.

                Comment on this review(earn points)

                (0 of 1 customers found this review helpful)

                 
                5.0

                I would buy this product again andagain

                By Car lover

                from Brooklyn New York

                About Me Auto Enthusiast, Mechanic

                Verified Buyer
                Level 1

                Pros

                • Improves Engine Efficiency
                • Increases Power

                Cons

                  Best Uses

                  • Everyday Driving
                  • Replacement

                  Comments about ACDelco General Motors Original Equipment Iridium Spark Plug:

                  this is a replacement product,that was really needed and was well over due,so they were just perfect,for the job,i could'nt ask for moore.

                  Comment on this review(earn points)

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                  Do you have questions about this product?(earn points for answers!)

                   

                  Ask a question, get answers from real customers and in-house experts. Or contact Customer Care by email or call 1-877-238-2623.

                  13 Questions | 15 Answers
                  Displaying questions 1-10Previous | Next »
                  • Q:

                    Does the construction of these acdelco iridium tipped plugs require a smaller gap than a standard plug. My 2004 gmc canyon calls for for a gap of .060 and these plugs came at .040 and are supposed to be specific to my vehicle. To gap or not to gap?
                    Asked on 1/23/2013 by Jared from Adamsville tn

                    1 answer

                    • CUSTOMER CARE

                      A:

                      For assisting you further on this ACDelco General Motors Original Equipment Iridium Spark Plug - part# 41-110, please provide the sub-model and engine size of your GMC Canyon. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

                      Answered on 1/23/2013 by Vincent from AAP
                  • Q:

                    i have a 1999 chevy silverado truck with a 5.3 engine. i bought these spark plugs for it. my manual says .060 and these are pre-gapped at .040. will these be alright gapped at .040? i bought them like six months ago and are just now fixing to put them in. i probaly can't take them back if they won't work.thank you
                    Asked on 12/2/2012 by Will from spartanburg s.c.

                    1 answer

                    • CUSTOMER CARE

                      A:

                      Yes, this ACDelco General Motors Original Equipment Iridium Spark Plug - part# 41-110 is an exact fit for your 1999 Chevrolet Silverado. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

                      Answered on 12/3/2012 by Vincent from AAP
                  • Q:

                    how many spark plugs included in the 6.99 price?
                    Asked on 9/19/2012 by Jer

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This ACDelco General Motors Original Equipment Iridium Spark Plug (Part No. 41-110) is sold individually. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                      Answered on 9/19/2012 by Steve from AAP
                  • Q:

                    this spark plug have any warranty?
                    Asked on 9/7/2012 by mapa from chicago hieghts, ill

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This ACDelco General Motors Original Equipment Iridium Spark Plug (Part No. 41-110) comes with 3 year replacement warranty if defective. For further assistance, please feel free to call us at 1-877-238-2623 or visit your nearest Advance Auto Parts store and one of our representatives would be more than happy to assist you.

                      Answered on 9/8/2012 by Steve from AAP
                  • Q:

                    I have a 2002 Yukon XL Spark plug 41-110 are they to be regap to 0.60 or leave them at 0.40
                    Asked on 7/14/2012 by RJ

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This ACDelco General Motors Original Equipment Iridium Spark Plug –part# 41-110 comes pre-gapped at 0.040" and is an exact fit for your 2002 GMC Yukon XL. It is not necessary to re-gap it to 0.60. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representative there would be more than happy to assist you.

                      Answered on 7/14/2012 by Vincent from AAP
                  • Q:

                    What is the thread size in mm for this plug?

                    thanks
                    Asked on 6/26/2012 by mike

                    1 answer

                    • CUSTOMER CARE

                      A:

                      The spark plug thread size of this ACDelco General Motors Original Equipment Iridium Spark Plug (Part# 41-110) is 14mm. For any further assistance, please visit your nearest Advance Auto store or call us directly at 1-877-ADVANCE (238-2623) and one of our representatives there would be more than happy to assist you.

                      Answered on 6/27/2012 by Ralph from AAP
                  • Q:

                    What is the recommended gap for these plugs and my vehicle?
                    Asked on 6/13/2012 by Dan from Naples, FL

                    2 answers

                    • CUSTOMER CARE

                      A:

                      This ACDelco General Motors Original Equipment Iridium Spark Plug (Part# 41-110) is pre-gapped at 0.040in. In order to assist you further, please provide your vehicle make, model and engine specification.

                      Answered on 6/16/2012 by Dennis from AAP
                    • CUSTOMER CARE

                      A:

                      This ACDelco General Motors Original Equipment Iridium Spark Plug Part number 41-110 is pre-gapped at 0.040. To know the exact fit application, please provide the year, make, model and engine size of the vehicle and we would be better able to assist you.

                      Answered on 6/16/2012 by Steve from AAP
                  • Q:

                    Would I need to gap these for a 2002 GMC Yukon 4.8L or do they come pre-gapped?
                    Asked on 3/19/2012 by Anonymous from US

                    2 answers

                    • CUSTOMER CARE

                      A:

                      Yes, this ACDelco General Motors Original Equipment Iridium Spark Plug Part number 41-110 is pre-gapped at 0.040.

                      Answered on 3/20/2012 by Steve from AAP
                    • CUSTOMER CARE

                      A:

                      Yes, this ACDelco General Motors Original Equipment Iridium Spark Plug with part# 41-110 fits your 2002 GMC Yukon and it comes pre-gapped at 0.040".

                      Answered on 3/20/2012 by Vincent from AAP
                  • Q:

                    Just ordered these plugs and I was wondering if they're set at .040, .060, or another gap. I recently read a GM service announcement that states iridium plugs for my 2000 GMC Sierra should be gaped at .060 and others to the regular .040. If my plugs come incorrectly gaped should I attempt to re-gap them, or switch out the awry plug(s) at my local retailer?
                    Asked on 1/1/2012 by Brambo from Pennsylvania

                    1 answer

                    • CUSTOMER CARE

                      A:

                      This ACDelco General Motors Original Equipment Iridium Spark Plug is a 0.040 Gap Iridium spark plug. As per AcDelco this is an ideal plug for the 2000 GMC Sierra vehicle. Or else provide the exact model(within Sierra), and engine size of your application and we will have this checked further.

                      Answered on 1/3/2012 by John the Car-Doc from AAP
                  • Q:

                    my 99 silverado owners manual says ac # 41-952 are these plugs a revised number?
                    Asked on 7/3/2011 by Anonymous

                    1 answer

                    • CUSTOMER CARE

                      A:

                      In order to best answer your question, our technicians would be more than happy to assist you if you could please call us at 1-877-ADVANCE (238-2623).

                      Answered on 7/6/2011 by Steve from AAP
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                  Disclaimer We strive to keep all information accurate and up-to-date; however, product availability, pricing, promotions and store hours are subject to change without notice. Please contact Customer Care if you have any questions or corrections.