★★★★★
June 6, 2026
Will be ordering future products
Fast shipping, plus so far great product. I installed new plugs wires and core packs drove 6 hours no problem. Thank you.
Replaces
Part Details
Specifications
About TRQ:
TRQ is a trusted brand dedicated to making every repair a success story by combining premium parts with easy installation. Each TRQ part is engineered by a team of automotive experts to meet or exceed OEM standards, delivering enhanced performance and maximum longevity. With rigorous in-house testing, the brand ensures superior fit and function across every product line. TRQ also provides customers with best-in-class, step-by-step installation videos—so you can complete repairs with confidence, whether you're a first-time DIYer or an industry professional.
Returns: Parts with electrical components cannot be returned once installed.
Attention California Customers:
WARNING: This product can expose you to chemicals including Chromium (Hexavalent Compounds), which is known to the State of California to cause cancer, and birth defects or other reproductive harm. For more information, go to www.P65Warnings.ca.gov
Lifetime Warranty
This item is backed by our limited lifetime warranty. In the event that this item should fail due to manufacturing defects during intended use, we will replace the part free of charge. This warranty covers the cost of the part only.
Returns: Parts with electrical components cannot be returned once installed.
FREE Shipping is standard on orders shipped to the lower 48 States (Contiguous United States). Standard shipping charges apply to Hawaii and Alaska.
Shipping is not available to a P.O. Box, APO/FPO/DPO addresses, US Territories, or Canada for this item.
Expedited is available on checkout to the United States, excluding Alaska, Hawaii.
Final shipping costs are available at checkout.
Created on:
Tools used
Brought to you by 1AAuto.com. Your source for quality replacement parts and the best service on the internet. In this video we're going to replace an ignition coil on this 2002 GMC Sierra with a 6 liter Vortec V8. This procedure is the same for most of the 4.8, 5.3, and 6.0 liter Vortecs in the trucks as well as the SUV's, very simple, only tool you'll need is a 7 mm socket with a ratchet and extension.
The coils on this GM V8's is pretty easy to get to. There's four of them each side, eight total, one for each cylinder. They're right up here on top. I'm going to do this one because it's just the easiest one to see and film. They're all really easy to get to though. Now, there's a harness that goes in right here. I'm going to pull back on that tab and pull up and the front wire is right down here. You twist it. Hold down. Now you can see the two 7 mm bolts on each side holding it in. One here and one there. We'll just speed it up as we're removing those two 7 mm bolts with a socket and a ratchet and an extension. Our original coil, the new one from 1A Auto, you can see it's all the same. It's going to bolt in just like the original. I'm going to speed up again as I just tight those bolts in and then tighten them up with my socket, ratchet and extension. When you tighten them you want them nice and firm. They're not to be overly tight though. Put the extension back in and then plug your plug wire right back and then just repeat for the other seven.
We hope this helps you all. Brought to you by www.1AAuto.com. Your source for quality replacement parts and the best service on the internet. Please feel free to call us toll free 888-844-3393. We're the company that serve you on the internet and in person.
TKA06291
Fast shipping, plus so far great product. I installed new plugs wires and core packs drove 6 hours no problem. Thank you.
Fits perfectly no problems with install I was worried the plug wires would be too short but there just right. Cleared my random misfire codes.
Everything was good. Got the stuff on time. Had it put in it really made the difference. Haven new stuff. Was very helpful with the service of knowing what parts that would work and did. glad for the deal.good price I couldn't be nothing but happy
Did the job
Good parts and save me lot money .
The parts are the correct parts, they also fit just fine. My truck did not run very well with the ignition coils, wires, and plugs.
Exactly as described, fit perfectly. My only wish would be that the actual plug wires themselves were about 1/4-1/2" longer?.. other than that, great buy! No check engine lights no misfires, they work just like OEM or better. (2001 Chevy Silverado 1500 Lt Base 4.8L 4x4 standard cab short bed.)
Direct replacement seemed to be very good quality. I could tell an immediate difference as soon as I cranked it up.
Thought I had lifter tick but after Installing this kit the ticking went away. Turns out my plugs n wires were so bad they were arcing on the block making a ticking noise. My tahoe feels stronger and smoother in general too.
littlery spent 200 bucks on these just too make my truck misfire not a quality product
Mine were
The spark plugs are made by the company TRQ- trusted Reliable Quality.
Thank you for your inquiry. Can you provide us with your 17-digit VIN number? Can confirm if your original spark plugs are 9.20 inches? Can you confirm if your original coils are round or square style?
Yes, this part will fit your 2004 GMC Yukon 5.3L with 9.20-in Spark Plug Wires and Round Style Coils.
Currently, we do not carry this part for your vehicle. We're always updating our inventory so please check back soon!
