ACDelco Professional 41-110 (12621258) Iridium Spark Plug (Pack of 1)

Ordered spark plugs for my truck and looks like the last set I put in. Looks like OEM parts and great price. Shipping was fast. Now if it can warm up a little so I can replace them but looks like more cold weather. Great seller here

Best plugs for ls motors

This is my second set of these, the last I ran about 80k on them. No problems, just time to change.

These are the original spark plugs as GM installed when this truck was being built. The motor was designed to use these exact plugs and using cheaper brands is only going to give you grief when you have to change them out again in a couple of years. The original set installed on my truck lasted ove 100,000 miles without ever giving me any trouble. I expect this set to go as long as the originals. It doesn't pay to cheap out on something that you rely on in your daily life.

After 143,913 miles I finally needed to replace the original plugs and I replaced them with the same OEM plugs. I've found (in most cases) that the OEM parts are the better way to go, especially when it come to spark plugs and oil filters. They always fit and do the job. These spark plugs were installed in a 2013 Chevy Silverado with a 5.3L engine for those who might want to know. Just a note! These spark plugs are supposed to be properly gapped at the factory and should NOT be re-gapped as it is said that they could be damaged in doing so. Spark plug gap for a 2013 Chevrolet Silverado with a 5.3L engine is .040. Always consult ones service manual or owners manual for your application.

As of the time of this review, these plugs are Sold and Shipped by Amazon, and are genuine AC Delco. I am trained to spot differences (lighter rolled etching, font dye, core color, hex machining, etc). These 41-110 plugs are actually made by Denso and they are the same AC Delco plug our trucks came with from the factory (they are a rebadged Denso #ZTJ16R10 plug packaged for AC Delco). GM does supersede these plugs with the AC Delco 41-162 plugs, which are made by NGK (those are a rebadged NGK #IZTR5B11 plug), but either one will suffice (I'd pick whichever is cheaper).

This may be the best deal I ever got on Amazon, quality products at a fantastic price! I need to check more of your products out! They fit in my gen 5 Camaro, runs like a dream.

2010 GMC Sierra 1500, 5.3 original owner @110k I replaced the factory plugs #41-110 with 8 new #41-110 from Amazon. All new plugs were gapped @ .040 and were pristine. and identical. Originals still looked good, and didn't show any misfires. I Could have ran them much longer. Price was right.

Las instale en mi silverado y trabajo perfectamente

OEM plugs discontinued and superceded by these.

Very happy . 100%verified gm oem original part.

منتج اصلي وسعره جيد

Of course. As close to OEM as you can get, these iridium plugs always work great.