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⚡ Ignite your drive with precision-engineered power!
The ACDelco GM Original Equipment 41-108 Iridium Spark Plug is a premium, vehicle-specific replacement part engineered by GM to deliver superior engine performance, durability, and reliability. Featuring a fine-wire iridium electrode for efficient ignition and carbon deposit reduction, it ensures smooth idling, quick starts, and long-lasting operation backed by a 7-year unlimited mile warranty.
| ASIN | B0016HNOFY |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #24,120 in Automotive ( See Top 100 in Automotive ) #138 in Automotive Replacement Spark Plugs |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Compatible with Vehicle Type | Car |
| Core Material | Iridium |
| Customer Reviews | 4.6 out of 5 stars 1,053 Reviews |
| Included Components | Spark Plug |
| Item Type Name | Iridium Plugs - GM,Iridium Plugs - GM |
| Item Weight | 22.68 g |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12681658 |
| Manufacturer Warranty Description | 7 Year / Unlimited Mile Limited Warranty on parts sold on or after 04/01/18. (Parts Only) Please see ACDelco.com for more details. |
| Thread Size | 0.551 inches |
| Top Material Type | Nickel |
| UPC | 808709617174 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Car |
A**R
Spark Plug runs well in SUV.
Quality spark plug that is running well in engine.
A**H
Good value
Seem to working fine
R**A
All five perfectly gapped.
If this is the OEM plug for your car I can tell you that after 68,000 miles of service on a stock engine the gap between the center electrode and the grounding electrode grew about .0015" for this plug. The outgoing plugs had a gap that I would call a sloppy .034" since a .035 feeler gauge would not pass with out undue force. The new plugs received fro Amazon were all gaped at a perfect to my hand and feeler gauge .033". The factory install plugs were not coated in anti-seize and uninstalled nice and easy, all requiring the same 550 in-lbs to break and were smooth to spin out by hand via extension shaft and plug socket after being broken of seat. Excellent plugs and really the only thing you should be running in your LNF. I am pretty confident these plugs are a true blue 100K+ mile life cycle item. I bought one extra because I knew the shipping department was going to haphazardly into the box with the new spark plug socket set I ordered at the same time and didn't want to delay my plug change because of the predictable, they have done similar things to me before. Fortunately, although one plug came out of its box and had a socket sitting on it, ACDelco included a plastic tube sleeve to protect the threads, electrodes, and ceramic and their .5¢ protector in the packaging saved me and Amazon from having to process a return despite Amazon's continued consistency in variable packing quality, consideration.
M**B
Works as advertised.
Installed in a 2014 GMC Terrain: is same as OEM spark plugs. Lubricated threads installed and so far, no issues. Installed 3 days ago, drove around some so the system can acclimate. Now, everything is working better than before install.
J**N
Excelente cervicios. 👌 que 🤔
No las instale hoy pero la marca es buena y es la que exige mi chevrolet Equinox. Acdelco. Son totalmente nuevas y se ben originales. El envío estaba para mañana jueves y las resibi hoy miércoles 1 de octubre 25. Muy buen cervicio por parte del vendedor, y la entrega por AMAZON 👍 👏 😉 👌. GRACIAS
A**X
Exactly matched GM part number required for Buick Verano 2.4 2013
Exactly matched GM part number required for Buick Verano 2.4 2013, fit really well and work as expected.
P**L
Work great
There oem, work great
J**.
Good plugs
Worked good, always use factory replacement plugs
Trustpilot
2 weeks ago
1 month ago