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⚡ Ignite your drive with GM’s iridium spark—where precision meets power!
The ACDelco GM Original Equipment 41-156 Iridium Spark Plug is a vehicle-specific, OEM-backed ignition component featuring a high-strength iridium core for superior durability and performance. Engineered and validated by GM, it ensures stable idling, quick starts, and smooth acceleration while incorporating a suppressor seal to prevent combustion leaks and electronic interference. Perfect for Chevrolet, Buick, GMC, and Cadillac vehicles seeking reliable, factory-grade replacement parts.
| ASIN | B071HPXS56 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #33,586 in Automotive ( See Top 100 in Automotive ) #199 in Automotive Replacement Spark Plugs |
| Brand | ACDelco |
| Core Material | Iridium |
| Customer Reviews | 4.4 4.4 out of 5 stars (567) |
| Date First Available | May 12, 2017 |
| Exterior | Machined |
| Global Trade Identification Number | 40808709663247 |
| Item Weight | 5 ounces |
| Item model number | 41-156 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 41-156 |
| Model | GM Original Equipment |
| OEM Part Number | 12683541 |
| Product Dimensions | 3.7 x 3.2 x 0.8 inches |
| Thread Size | M14x1.25 |
| Top Material Type | iridium |
| UPC | 808709663249 |
| Vehicle Service Type | Motorcycle |
S**R
Good Part
Fits perfect strong factory grade product and great price.
B**L
Works
This is the original equipment used. They work as intended.
T**S
Excellent Choice
Excellent quality in new condition, with unsurmountable value. The appearance is clean and 100% OEM. The sparkplugs are authentic. Also, great customer response time, and delivery arrived several days ahead of schedule—which is a definite plus!
D**L
Buy the best
Iridium A/C spark plugs are worth the extra price you pay.
I**S
Spark plugs like good, but they where open in the pakage
The spark plugs where loose in the package. They are not supposed to do that since they are pre gaped and can lose the gap by having them lose. The spark plugs where original and seemed like very good quality. How ever I could not use them. If they had put all 4 in a box it would have helped.
A**Y
What you need….
….for your 2021 1.5l Chevy Malibu. Easy to install and you don’t need the gap them.
S**I
As Advertised
OEM as it should be.
S**K
Great part
Perfect fit. Works flawlessly.
M**T
You can never go wrong with the OEM plugs for your vehicle! I’m always super happy with Delco plugs.
R**R
Perfect as it is stocked
P**.
These do not fit a 2019 chevy equinox to small. I ordered 4 and received one.
T**L
I ordered 4 spark plugs 41-156. I received 3, 41-156 and 1 C87 plug wrapped up in a plastic bag. Totally unacceptable. Took car in to have plugs installed and 1 wrong plug. Hadcto search for another plug. The 1st order of spark plugs were not the right ones for my car. Not a happy customer!!! Terry Boegel
Trustpilot
4 days ago
1 week ago