Professional Iridium Spark Plug
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ACDelco Professional Iridium Spark Plug

Part No. 41-110 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.

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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
ACDelcoProfessional Iridium Spark Plug
 
4.8

(based on 78 reviews)

Ratings Distribution

  • 5 Stars

     

    (66)

  • 4 Stars

     

    (10)

  • 3 Stars

     

    (2)

  • 2 Stars

     

    (0)

  • 1 Stars

     

    (0)

97%

of respondents would recommend this to a friend.

Pros

  • Improves engine efficiency (51)
  • Easy to install (43)
  • Durable (40)
  • Increases power (39)
  • Lightweight (9)

Cons

  • No improvement in performance (3)

Best Uses

  • Everyday driving (62)
  • Replacement (45)
  • Performance driving (13)
  • Restoration (8)
  • Racing (3)
    • Car & Truck:
    • Auto enthusiast (7), Truck enthusiast (7), Casual driver (6)
    • Reviewer Profile:
    • Casual driver (28), Auto enthusiast (21), Truck enthusiast (19), Mechanic (13), Competitive driver (4)

Most Liked Positive Review

 

Correct plug for GM 5.3L LC9 V8

This is a direct factory replacement for the GM AC delco plug. If you have a 5.3L V8, I would check #1 and #7 for signs of oil fouling. If you have this...Read complete review

This is a direct factory replacement for the GM AC delco plug. If you have a 5.3L V8, I would check #1 and #7 for signs of oil fouling. If you have this - see GM about a Technical Service bulletin - your engine is likely using oil and you need new parts in the PCV system (rocker cover) and the dealer needs to drop the pan and install a splash shield. The problem is related to the AFM system that runs the engine on only 4 cylinders. The more you run in 4 cylinder mode, the more oil the engine uses. Eventually you will oil foul the plugs and misfire. 07-13 model years

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 78 customers

Displaying reviews 1-10

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5.0

Wonderful purchase

By 

from Billings, MT

About Me Competitive Driver

Verified Buyer

Pros

  • Improves Engine Efficiency

Cons

    Best Uses

    • Everyday Driving
    • Great Performance

    Comments about ACDelco Professional Iridium Spark Plug:

    Wonderful on-line purchase.

    Comment on this reviewHelp Icon(earn points)

     
    5.0

    2014 Chevy Sub LT 5.3

    By 

    from Lawrenceville, GA

    About Me Auto Enthusiast, Truck Enthusiast

    Verified Buyer

    Pros

    • Increases Power

    Cons

      Best Uses

      • Everyday Driving
      • Performance Driving
      • Replacement

      Comments about ACDelco Professional Iridium Spark Plug:

      This spark plus is the perfect fit for 2014 Chevy Suburban 5.3l

      Comment on this reviewHelp Icon(earn points)

       
      4.0

      Seems to a good product

      By 

      from Riverview fl

      Verified Buyer

      Comments about ACDelco Professional Iridium Spark Plug:

      Good product

      Comment on this reviewHelp Icon(earn points)

       
      5.0

      OEM Plugs

      By 

      from Culpeper, VA

      About Me Casual Driver

      Verified Buyer

      Pros

      • Durable

      Cons

        Best Uses

        • Everyday Driving

        Comments about ACDelco Professional Iridium Spark Plug:

        They are the OEM plug for my vehicle...what more needs to be said.

        Comment on this reviewHelp Icon(earn points)

         
        4.0

        New plugs

        By 

        from Valparaiso, IN

        About Me Auto Enthusiast

        Verified Buyer

        Pros

        • Easy To Install

        Cons

          Best Uses

          • Everyday Driving

          Comments about ACDelco Professional Iridium Spark Plug:

          Replaced well used plugs.

          Comment on this reviewHelp Icon(earn points)

           
          5.0

          GREAT plugs

          By 

          from COONASS sc

          Verified Buyer

          Comments about ACDelco Professional Iridium Spark Plug:

          GREAT plugs they old ones had 100,000 miles and just started to show wear.

          Comment on this reviewHelp Icon(earn points)

           
          5.0

          Great product

          By 

          from Indiana

          Verified Buyer

          Comments about ACDelco Professional Iridium Spark Plug:

          These original equipment spark plugs are the best choice for replacement, performance, and every day driving. They are a no compromise quality component. You can't go wrong choosing AC Delco.

          Comment on this reviewHelp Icon(earn points)

           
          5.0

          I would buyou this product again.

          By 

          from Houston

          Verified Buyer

          Comments about ACDelco Professional Iridium Spark Plug:

          Exact replacement

          Comment on this reviewHelp Icon(earn points)

          (4 of 4 customers found this review helpful)

           
          5.0

          good plugs

          By 

          from San Antonio, TX

          About Me Casual Driver

          Verified Buyer
          Helpful Reviewer

          Pros

          • Improves Engine Efficiency
          • Increases Power

          Cons

            Best Uses

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

            Comments about ACDelco Professional Iridium Spark Plug:

            These replaced the originals with 120k miles in an 07 Tahoe 5.3 AFM motor. Restored smoothness at idle and acceleration feels smoother and harder. Great plugs.

            Comment on this reviewHelp Icon(earn points)

            (10 of 12 customers found this review helpful)

             
            5.0

            Correct plug for GM 5.3L LC9 V8

            By 

            from Austin Texas

            About Me Mechanic

            Verified Buyer
            Helpful Reviewer

            Pros

            • Same As Factory Plug

            Cons

              Best Uses

              • Everyday Driving
              • Replacement

              Comments about ACDelco Professional Iridium Spark Plug:

              This is a direct factory replacement for the GM AC delco plug. If you have a 5.3L V8, I would check #1 and #7 for signs of oil fouling. If you have this - see GM about a Technical Service bulletin - your engine is likely using oil and you need new parts in the PCV system (rocker cover) and the dealer needs to drop the pan and install a splash shield. The problem is related to the AFM system that runs the engine on only 4 cylinders. The more you run in 4 cylinder mode, the more oil the engine uses. Eventually you will oil foul the plugs and misfire. 07-13 model years

              Comment on this reviewHelp Icon(earn points)

              Displaying reviews 1-10

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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. For further assistance, please review your support options on our Contact Us page.

              14 Questions | 16 Answers
              Displaying questions 1-10Previous | Next »
              • Q:

                Torque specs for 2009 GMC Yukon XL Denali?
                Asked on 3/7/2015 by Brian from Spartanburg, SC

                1 answer

                • CUSTOMER CARE

                  A:

                  Happy to answer your question Brian! The torque specs for these spark plugs will be 11 ft lb.

                  Answered on 3/8/2015 by Panda from AAP
              • 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 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
                • 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
              • 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 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
                • 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
              • 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
              Displaying questions 1-10Previous | Next »

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