⚡ Ignite your drive with GM’s iridium edge — performance you can feel!
The ACDelco GM Original Equipment 41-109 Iridium Spark Plug features a fine-wire iridium electrode that enhances engine idle stability, accelerates cold starts, and burns away carbon deposits for consistent performance. Its suppressor seal blocks radio frequency interference, protecting sensitive vehicle electronics. Designed and tested by GM engineers, this spark plug offers a precise OEM fit backed by a 7-year unlimited mile warranty, ensuring durability and reliability for Chevrolet, Buick, GMC, and Cadillac vehicles.
| Brand | ACDelco |
| Core Material | Iridium |
| Thread Size | M14x1.25 |
| Top Material Type | Iridium |
| Vehicle Service Type | Car |
| UPC | 808709616368 |
| OEM Part Number | 12622561 |
| Manufacturer | ACDelco |
| Part Number | 12681660 |
| Item Weight | 1.76 ounces |
| Product Dimensions | 3.7 x 3.1 x 0.9 inches |
| Item model number | 41-109 |
| Is Discontinued By Manufacturer | Yes |
| Size | 1 Count (Pack of 1) |
| Item Package Quantity | 1 |
| Included Components | Spark Plug |
| Batteries Included? | No |
| Batteries Required? | No |
| 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. |
A**Z
Fit 2012 V6 Camaro
Plugs were a one to one fit to replace the oem plugs in my 2012 v6 Camaro. I checked the gap on all six that I put in and only one of them was off enough to worry about adjusting it. Got them installed, started my car up, and it seemed to be running good. Seemed to be a genuine ACdelco replacement part that was good quality.
G**G
Spark plugs
Fast ship and very reasonably priced
S**T
perfect match
the originals were still in and working at 130,000 miles. so nothing but the same for my car.
T**R
Perfect OEM
OEM 2012 Buick Lacrosse 3.6LDidn’t fix my issue but spark plugs weren’t ever done acdelco came out acdelco went in!
B**J
Good Plug
Gapped correctly (0.040 out of the box. No issues installing.
D**N
Spark plugs
They work as they should
V**S
Good
Fixed engine misfire. Make sure your gap is correct. 2014 chevy impala limited lt 3.6l. Replaced all six. Don't buy them off of ebay there not real a/c Delco there knock offs. These are legit.
J**S
Long lasting
The AC Delco plugs I removed were 11 years old and 141K miles. The old plugs still had an accurate gap and were working fine.
Trustpilot
4 days ago
2 months ago
