Professional Iridium Spark Plug
Hover over the image to zoom in
Share this:

ACDelco Professional Iridium Spark Plug

Part No. 41-110 Warranty Details  
$7.99
Quantity  Add to Cart

See if this part fits a specific vehicle.

Check Vehicle Fit

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.
Back To Top
Electrode Core Material:Copper
Electrode Tip Material:Iridium
Resistor:Yes
Seat Type:Tapered
Thread Diameter:14 mm

REVIEW SNAPSHOT®

by PowerReviews
ACDelcoProfessional Iridium Spark Plug
 
4.8

(based on 102 reviews)

Ratings Distribution

  • 5 Stars

     

    (89)

  • 4 Stars

     

    (10)

  • 3 Stars

     

    (3)

  • 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)
    • Was this a gift?:
    • No (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 102 customers

Displaying reviews 1-10

Back to top

Previous | Next »

 
5.0

Would buy again

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Great product improved economy and preformance

 
5.0

I'd use again

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Correct plug for my application, number on plug varied from plug removed

 
5.0

good, but pricey

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

only thing not to like so far is the price

 
5.0

Great plugs

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Gap Preset to 0.30. Installed to my 2013 sierra 1500. Got my smooth idle back!

 
5.0

Worth the extra.

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Perfect. Works like a charm.

 
5.0

Great product

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Tune up on my 2009 GMC Truck,great product. I would buy this product again

 
5.0

I would buy this again.

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

great product.

 
5.0

Perfect Fit

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Used these on my 2007 Chevrolet Silverado, 4.8L, new body style. Applied anti-seize grease. Perfect fit.

 
5.0

I would buy this product again

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

Great plugs they were pre-gapped and ready to go, immediately i noticed power restored, better gas mileage and strong response, I'm definitely going back with these again! A.C.Delco don't play, this is what you want!!

 
5.0

Good plugs.

By 

from undisclosed

Verified Buyer

Comments about ACDelco Professional Iridium Spark Plug:

The plugs are what I took out so I bought the same ones.

Displaying reviews 1-10

Back to top

Previous | Next »

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.

16 Questions | 19 Answers
Displaying questions 1-10Previous | Next »
  • Q:

    How much horse power does this spark plug give me to a yukon denali 6.2
    Asked on 7/7/2017 by Jerry from Chicago,IL

    2 answers

    • A:

      This iridium spark plug will not boost horsepower on a stock engine but it will retain the smooth idle and run properly for your 6.2.
      Sent from Yahoo Mail for iPhone

      Answered on 7/7/2017 by jaredmarlar from undisclosed
    • A:

      Honestly sparkplugs rarely ever make horsepower. Their job is to fire the fuel mixture and not run so hot that they cause preignition or so cold that they foul. Buy the recommended heat range for your vehical unless you have modified the engine. NGK makes great plugs. I run them exclusively. Buy the part number recommended. 

      Answered on 7/7/2017 by marklohr321 from undisclosed
  • Q:

    I was told after the new TSB, that this is the plug to use in my 2003 Chevy Tahoe Z71 5.3L. Is this correct? Because it's saying incompatible, but the new gap is .40 and not .60. Are these the correct plugs?
    Asked on 1/10/2017 by Ranger187 from Mechanicsburg, PA

    1 answer

    • CUSTOMER CARE

      A:

      Hi Ranger187, thank you for bringing this to our attention! This ACDelco Professional Iridium Spark Plug - Part No. 41-110 is an exact fit for your 2003 Chevrolet Tahoe Z71 5.3L. We have forwarded this information to our content team to update the site. We appreciate your patience while this information is updated. The gap must be adjusted for the vehicle that the spark plug is intended for. Those with modified engines must remember that a modified engine with higher compression or forced induction will typically require a smaller gap settings.

      Answered on 1/11/2017 by Solomon from AAP
  • 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
Displaying questions 1-10Previous | Next »

Do you have a question about this product? 

Check out the specials in our monthly flyer.
 
 
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.