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⚡ Ignite your drive with GM’s iridium edge — performance you can feel, reliability you can trust!
The ACDelco GM Original Equipment 41-993 Iridium Spark Plug features a fine-wire iridium electrode designed for superior engine idle stability, quick acceleration, and reliable cold starts. Its one-piece suppressor seal blocks radio frequency interference, protecting vehicle electronics while extending electrode life by preventing combustion leakage. Engineered and validated by GM for Chevrolet, Buick, GMC, and Cadillac vehicles, it comes with a 7-year unlimited mile warranty, ensuring long-lasting performance and peace of mind.
| ASIN | B08PVHV939 |
| Automotive Fit Type | Vehicle Specific Fit |
| Best Sellers Rank | #663,571 in Automotive ( See Top 100 in Automotive ) #3,652 in Automotive Replacement Spark Plugs |
| Brand | ACDelco |
| Brand Name | ACDelco |
| Compatible with Vehicle Type | Car |
| Core Material | Iridium |
| Customer Reviews | 4.6 out of 5 stars 190 Reviews |
| Included Components | Spark Plug |
| Item Type Name | Iridium Plugs - GM,Iridium Plugs - GM |
| Item Weight | 0.09 Pounds |
| Manufacturer | ACDelco |
| Manufacturer Part Number | 12681665 |
| Manufacturer 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. |
| Model Number | 41-993 |
| Number of Items | 4 |
| Thread Size | RM |
| Top Material Type | Iridium |
| UPC | 808709617198 |
| Unit Count | 1.0 Count |
| Vehicle Service Type | Car |
C**K
Reliable spark plugs
Excellent iridium spark plugs. I trust these plugs as i have not had any issues with them.
E**L
ACDelco Spark Plugs GM Silverado 2001
Excellent Spark plugs for the Silverado. Even on startup and several miles now on the road the power has been more noticeable. Sometimes I forget when I hit the gas, but I quickly Get a reminded with the push back in the seat. Yeah, awesome plugs. That was the only thing I changed that day so that's how I'm judging the plugs!
Z**P
For GM they're best.
I only use AC Delco Plugs for my GM. They work great.
L**.
Use correct part number for best performance
Really like this item for my Chevrolet S10 V6 vortec engine these AC Delco 41-993 spark plugs are an upgrade part number for this particular make & model vehicle and wouldn't use any other part number that your manual calls for as it makes a difference in the power of your vehicle as well as how it runs. Getting products that's supposed to actually match your engine for it to run its best and maximum performance is the best way to go if not, you will not get the best quality out of your vehicle and it will run terrible if you choose to get something different cuz it's cheaper and just because it will work. I say you get what you pay for that falls on you when you could just simply get the correct part number that it actually calls for. That's what I suggest. Definitely do that please. These work in my vehicle better than any other spark plug I've put in there
G**D
Very good parts 2200 miles no issues
Very good sparkplugs 2200 miles no problems
K**M
Can't go wrong with ACD
150K+ 2000 v6 s10 was hesitating, backfiring, misfiring, idling & running rough. Mechanic said there was one bad plug. Did a complete tuneup will all AC Delco parts, now is smooth & quiet like a new truck.
G**W
Iridium Spark Plug
Great plugs at a good price. Wouldnt use anything else on our GM vehicle.
J**S
Good quality
Pre gapped and good to go!
Trustpilot
1 month ago
2 weeks ago