

⚡ Ignite your drive with GM’s iridium precision spark plugs!
The ACDelco GM Original Equipment 41-156 Iridium Spark Plug is a premium, vehicle-specific ignition component engineered with iridium for exceptional durability and performance. Backed by General Motors, it ensures exact OEM fit, superior cold start reliability, smooth acceleration, and advanced suppression of electronic interference—making it the smart upgrade for GM vehicle owners who demand lasting quality and flawless engine operation.







| ASIN | B071HPXS56 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #13,362 in Automotive ( See Top 100 in Automotive ) #56 in Automotive Replacement Spark Plugs |
| Brand | ACDelco |
| Core Material | Iridium |
| Customer Reviews | 4.4 4.4 out of 5 stars (573) |
| Date First Available | May 12, 2017 |
| Exterior | Machined |
| Global Trade Identification Number | 40808709663247 |
| Item Weight | 1.13 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**S
👍🏽
Quality product, fast shipping and satisfied customer!
B**L
Works
This is the original equipment used. They work as intended.
M**L
Best price
Amazon price $12.50 each excellent price. Very easy to install and they come pre gapped
V**Z
bien
Hello, I only received 3 spark plugs. Could you please send me the other one? Thank you very much.
D**O
Ceramic insulator shattered
3 out of the 4 spark plugs had the ceramic insulator shatter when installing and I returned them only for the seller to charge back the 3 broken ones. I then spoke with Amazon support and got my money back then the seller charged me again??? Super low quality stuff, idk if it’s from being shipped through Amazon but I am a certified technician and have never seen spark plugs just shatter from installation. Had to be very careful removing the spark plugs from fear of the shattered ceramic insulator pieces falling into the cylinder’s. If I could give these 0 stars I would.
E**G
New OEM recommended replacement.
OEM recommended part.
S**R
Good Part
Fits perfect strong factory grade product and great price.
D**L
Buy the best
Iridium A/C spark plugs are worth the extra price you pay.
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 month ago