ACDelco GM Original Equipment 41-109 Iridium Spark Plug
ACDelco GM Original Equipment 41-109 Iridium Spark Plug
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ACDelco

ACDelco GM Original Equipment 41-109 Iridium Spark Plug

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Key item features

  • Advanced Iridium: Utilizes iridium, the latest spark plug technology, serving as an exact replacement for original vehicle components.
  • Durable Composition: Iridium composition offers a high melting point and significant strength, contributing to excellent wear resistance and durability.
  • Optimized Performance: Iridium provides superior engine idle stability, dependable cold starting, rapid acceleration, and smooth operation.
  • Integrated Suppressor: Features a three-piece fired-in suppressor seal that meters spark energy for extended electrode life, prevents combustion leakage, and blocks radio frequencies affecting vehicle electronics.
  • Precision Welds: Laser-welded iridium plugs ensure precise welds, minimize excess debris and wear rate, thereby enhancing overall durability.
  • Broad Compatibility: Fits a wide range of Chevrolet, GMC, Buick, and Cadillac models from 2010-2023, primarily with 3.0 L and 3.6 L 6-cylinder engines.
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Current price is $11.95
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Customer ratings & reviews

4.7 out of 5 stars
stars33 ratings20 reviews
How item rating is calculated
  1. 5 stars85% (28)
  2. 4 stars6% (2)
  3. 3 stars3% (1)
  4. 2 stars3% (1)
  5. 1 star3% (1)
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Showing 1-3 of 20 reviews

Oct 6, 2025
GWYNNE
Top Reviewer
5 out of 5 stars review

Verified Purchase

AC Delco Sparks 41-109 iridium

received these spark plugs on time and really fast. they were already pregapped. The construction of these spark plugs were exactly as mentioned. they were very easy to install. My vehicle runs exactly how it's made to run after installing these plugs. I noticed that the speed of my vehicle is very fast now.

Incentivized Review
Helpful?4J64OEP9DMDI33587425
Oct 21, 2025
Tina
5 out of 5 stars review

Verified Purchase

These plugs really make your motor run smooth. High performance plug. If you want your car to have power, gas mileage and all around good performance it is important that you use good quality products. You can't go wrong with these.

Incentivized Review
Helpful?4J64OEP9DMDI33587425
Nov 4, 2025
anonymous
5 out of 5 stars review

Verified Purchase

Ac Delco 41-109

Exact same plug as the dealer but at a fraction of the cost

Helpful?4J64OEP9DMDI33587425