



⚡ Ignite your drive with precision-engineered iridium power!
The ACDelco GM Original Equipment 41-122 Iridium Spark Plug delivers superior engine performance through a fine-wire iridium electrode that enhances idle stability, accelerates cold starts, and reduces carbon buildup. Featuring a one-piece suppressor seal, it minimizes radio frequency interference and combustion leakage, ensuring long-lasting reliability. Designed and tested by GM engineers for Chevrolet, Buick, GMC, and Cadillac vehicles, this spark plug meets rigorous OEM standards for quality and durability.







| ASIN | B00DU2530W |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #105,332 in Automotive ( See Top 100 in Automotive ) #664 in Automotive Replacement Spark Plugs |
| Brand | ACDelco |
| Core Material | Iridium |
| Customer Reviews | 4.4 4.4 out of 5 stars (297) |
| Date First Available | July 8, 2013 |
| Exterior | Machined |
| Is Discontinued By Manufacturer | Yes |
| Item Weight | 1.44 ounces |
| Item model number | 41-122 |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12681655 |
| Model | GM Original Equipment |
| OEM Part Number | 55585534 |
| Product Dimensions | 3.59 x 3.41 x 0.91 inches |
| Thread Size | 14mm |
| Top Material Type | Iridium |
| UPC | 808709616856 |
| Vehicle Service Type | Motorcycle |
J**A
They came quick and work just fine
Excellent product
A**X
Still runs nice
I have replaced old Bosch plugs with this; 1000 km and car is stable and i have no problems with it; Smooth and nice, fuel consumption has dropped; Happy with the price; You get 1 instead of 4 as in the photo; another problem is that if the packaging is dent, you will need to recheck the gap; otherwise nice plugs;
G**T
Perfect
$15 dollars cheaper then local dealership
L**S
These Spark Plugs work good for a 2014 Chevy Cruze
Since I replace my old spark plugs with these. My 2014 Chevy Cruze been driving so much better. Check engine went off in my gas mileage has improved. Highly recommend
R**C
Probably a fake and terrible packaging for shipping.
Terrible packaging. Was hanging out of a crushed package box and then just placed in an envelope. Product was made in Thailand which is probably a a knockoff. Google search indicated this.
O**E
Just what my 2011 Chevy Volt needed...
I got 4 of these to replace the 4 that were in my engine. My Volt had started misfiring and if you have ever had to commute more than 40 miles (each way) for work, then you will understand how traveling 38 miles on surface streets instead of the freeway can really put a damper on your time... these along with a replacement Coil pack (corrosion of the spring contacts inside the boots) and I was good to go again. Thanks for reading! Cheers!!
J**E
High quality
These are great spark plugs. Worked perfectly on my Chevy cruze.
K**H
not gapped correctly
every single one was gapped wrong (very carefully) regap all of the plugs you buy
A**R
top quality, reasonable price.
P**E
Excellent produit d'origine, fabrication NGK!
Trustpilot
3 weeks ago
2 weeks ago