⚡ Ignite your drive with precision and power!
The ACDelco GM Original Equipment 41-103 Iridium Spark Plug features a high-performance iridium core and a 1mm electrode gap for superior ignition efficiency, smoother engine idle, and faster acceleration. Its one-piece suppressor seal blocks radio frequency interference, protecting vehicle electronics while extending spark plug life. Designed for vans, cars, and trucks, this OEM-quality spark plug ensures reliable, factory-grade performance and durability.
| Brand | GM Parts |
| Core Material | Iridium |
| Gap Size | 1 Millimeters |
| Thread Size | 1(mm) |
| Top Material Type | Iridium |
| Vehicle Service Type | Van, Car, Truck |
| UPC | 808709616122 |
| OEM Part Number | 12625058 |
| Manufacturer | ACDelco |
| Model | 12681663 |
| Item Weight | 1.44 ounces |
| Product Dimensions | 6.7 x 3.9 x 1 inches |
| Country of Origin | USA |
| Item model number | 41-103 |
| Is Discontinued By Manufacturer | Yes |
| Exterior | Chrome |
| Manufacturer Part Number | 41-103 |
J**O
good spark plugs
It fits perfectly in my 2008 Chevrolet Colorado truck, good quality !!!!
W**S
Better gas mileage
My gas mileage has improved
R**N
Genuine AC Delco plugs
I know how to tell if these are counterfeit. These are genuine for sure, and made my engine come alive again. The dislike- AC Delco's packaging was horrible! Normally Delco puts a tip protector on these, these had nothing, just loose boxes, no individual tip protectors. These thankfully were gapped properly, so no chance of removing, or scuffing the Iridium while adjusting the gap. Had the fine Amazon driver accidently dropped the package, it would have destroyed the tips. Do better Delco!
C**N
These AC Delco 41-103 Iridium are the correct replacement part for the 41-981 discontinued platinum
2004 GMC Envoy XUV . I tried to go cheaper but i ended up having to get these as the correct replacemet part. This is somewhat complicated due to the original plug 41-981 Platinum plug was discontinued and replaced with these 41-103 plug was hard to get to so i think whatever mechanic did the first tune up left the original in there. So theres alot of plugs that wont fit right that will say they are correct wont fire or are not the correct quality and the first plugs i ordered did not even fire. So In Short In This Case I Would not try to go cheap and Go With These AC Delco plugs they fired immeditely and correctly.
V**S
Great price Great plugs
These are the OE replacements for a 02 Chevy Trailblazer Ext. Performed a tune up and these plugs are great. They’re already gapped however I always check the gap! My wife’s SUV runs great!
P**L
Always check the gap!
I bought 6 of these and the mfg says to NOT set the gap on iridium plugs. They're set at the factory. BS. After installing them and trusting they were gapped correctly at the factory, I had a random misfire. Turns out one plug gap was so bad it was almost closed. Otherwise, the car runs great and gets better mpg over the old plugs.
M**A
OEM Replacement for the Win
Great quality from original equipment manufacturer. I always look for AC Delco parts 1st to guarantee that I’m getting the best part for my Chevrolets. Easy to install and improved the rough start issue I was having. If I have to replace one, I go ahead and replace them all at once for the best results.
T**E
Quality
Like they come pre set no need to check the gap, makes it a quick switch when you do them yourself.
Trustpilot
1 day ago
1 month ago
