Features:

  • DIRECT REPLACEMENT/ UPGRADE over your original stock coils. We only use the highest grade materials. This makes our product durable and reliable under extreme conditions while providing High Electrical Resistance, strong Spark from plugs, and being resistant to Corrosion and Abrasion
  • IGNITION COILS for, but not limited to 2.8L, 2.9L, 3.5L, 4.2L engine displacements, Buick Rainer 2004 to 2005, Chevrolet Trailblazer 2002 to 2005, Colorado 2004 to 2006, GMC Canyon 2004 to 2006, Envoy 2002 to 2005, Envoy XL 2002 to 2005, Envoy XUV 2004 to 2005, Hummer H3 2006, Isuzu Ascender 2003 to 2005, I-280 2006, I-290 2007 to 2008, I-350 2006, I-370 2007 to 2008, Oldsmobile Bravada 2002 to 2004, Saab 9-7X 2005 and 2009
  • Buick, Chevy, GMC, Hummer, Isuzu, Oldsmobile, and Saab owners please check fitment bar and description before you BUY IT as the ignition coil pack can change based on the year/ month of manufacture of your vehicle
  • Compatible Part Numbers: E255, Ic414, 12568062, E255, 52-1743, GN10114, IC414, 12568062, UF-303, 19300921, DW01659, 8-12568-062-0
  • 【Lifetime Warranty】
These things really work and saved me a ton of money

Got these for my 2002 TrailBlazer after the check engine light came on. I went to the local Advanced Auto Parts as I thought on only had one bad ignition coil. After replacing it I discovered I needed multiple coils. The one I got at Advanced was an aftermarket coil as well for like 55 bucks. Not wanting to dish out over 300 bucks for 6 of these I turned to Amazon and found these and like everyone else I thought the old if it's too good to be true it probably is. I'm glad I gave these a try figuring worst case I would send them back if they were junk. This was not the case they are GREAT. I got these overnighted to my house for only 10 extra bucks and put them in the next morning. This is not a Delco/Delphi OEM part but when I compared it to the aftermarket one I got from Advanced and there was NO visual or weight difference at all! I swear it was the same part. Putting these in my vehicle did a take a few rounds to get them seated just right (I have had similar issues with the OEM ones just because of the engine design). My truck was running pretty smooth after I put these in with new spark plugs as well. My next fill up though shocked me. I must have had some bad gas because after I filled up my car is running better than it has in years. And for those reviewers saying the received some defective ones make sure you have it seated right.

FINALLY!!!P300 CODE SOLVED!!

Worked perfectly!! Cleared the P300 random multiple misfire code on the 2002 Trailblazer ls 4.2l After 2 months of off and on trying to figure this this out,(not to metion the year it sat in the person who I bought it from cuz of this problem) I bought and changed out like 4 cam and oil and knock sensor on Amazon that people had bought and You tube had said and showed. THEN spark plugs,oil change ,ran Liquid Molly products through,fresh gas,cleaned T.B. ,air filter,new battery,so on and so on. The bad thing is that was my 1st thought,plugs and wires,or coil packs in this case,but over thinking it,and the internet forums and errthang else lead me the long way round. THE MAIN THING IS....to make sure when u put them in,make sure it seats properly on spark plug!!p put them on 1st time, (with 🤞),,and it ran fine,then the code ,read somewhere bout seating them right,went back out,tried again and BAM!! LIKE NEW MONEY!!NOT TO MENTION...this set is almost same price as 1 of OEM.

Perfect reverse engineered replacement coils for aging Envoys and Trailblazers

First off, do not believe the reviews that say they are junk or you have to remove material from the connectors. Nonsense. I'm a former GM engineer, I pay close attention to part tolerances. These coils are reverse engineered OEM Delphi coils. Identical with 2 exceptions. On the Delphi coils the rubber portion that houses the spark plug connection is a better quality, more silicone based. Not an issue for a vehicle you are keeping less than 8-10 years. The other difference is their is a slight difference in the angle of the electrical connector, probably assisted in molding the housing no issue. Regarding the reviews saying they couldn't get the connectors to click into place on these coils. Again this is nonsense (likely phony reviews poster by the competition) Perfect connectors clicked in place with ease same as OEM. I had one teeny issue, one of the pins on a coil was bent out of line with the others. Slight tweak with a screwdriver to line it up. Lastly they make a huge difference in a truck with 150K miles. I didn't have DTC code, but the truck ran like crap. I normally hate knock off Chinese auto parts, but these old Envoys and Trailblazers are on their last legs. These Coils are just what these old wrecks need...there great!

Good for 03 Envoy/Trailblazer

Had the P030x code, so I replaced these - plus new plugs, new air filter and new fuel filter. 190K miles and running strong (03 Envoy). Would recommend.

2004 Trialblazer rough idling/misfire

My 2004 Trailblazer was running rough. Low RPM's and the engine would shake at idle. Read online it could be the ignition coils. Tested it by removing the air box above the engine and unplugged the cables attached to the coils. If removing the cable effects the idling engine that coil/plug is still good. I you remove the cable and there is no change in the then that is the coil that has failed. At 100,000 miles i had 1 bad coil. The cost to replace one was $45, a set of 6 was about $75, so i bought the set of 6. Replaced all 6 coils and spark plugs while I was at it. Used NGk 5019 plugs. If you are going to do this your self you will need a extension for the sparkplug socket as they are deep in the engine. The whole repair took just over an hour and everything is running great again.

Excellent product. Awesome price!

Absolutely recommended. Using them on my 2004 Chevy Trailblazer. Perfect fit. Car is running like new. Excellent product at a good price. Dealer will charge over a hundred dollars for one and I have 6 on them for less than $75.00.

Recommended.

Working great so far. Good build quality. Got some weight to them, they didnt skimp on the metals. OEM wire harness connections were a bit tough to snap on terminal posts but once they did they locked in place and that was that. I would recommend these. I work full time at a busy automotive repair shop. I'd put these up there with anything I have ordered from the big name auto parts stores but much cheaper.

Installed today, SUV is running smothly again

Bought these due to the good reviews. The price for 6 coils on Amazon cost almost the same as 1coil for $72 at my local parts store. I only had 1 bad coil per diagnostic tool and figured I could replace all 6 coils while I was in there thanks to Amazon. Per the other reviews the male peice would not click into the wire harness so I shaved down the male peice so it would click into the harness. This was the only downside of these coils as even after shaving they did not click in as easily as the old OEM coils I removed and probably added 45 minutes to the installation but at this price that is forgivable. Replaced all the spark plugs and coils for $115 in parts so probably saved over $1,000- $1,500 if I had it done at mechanic repair shop.

Excellent replacement part, easy to install.

In the last two years, three of my six stock ignition coils have failed on my 2003 Chevy Trailblazer LS 4.2L I6. The symptoms were always the same, very rough idle, very sluggish acceleration and a flashing check engine light. I have used these replacements each time it is necessary to replace an ignition coil, and none of these replacements has failed, only the originals I have installed. While the replacements I have installed don't have nearly the time or mileage of the originals, I think the max one has been in is just shy of two years, and about 30,000 miles, these seem to be doing the job! I would recommend this product.

2006 HUMMER H3

2006 HUMMER H3......fit perfectly. My thoughts were probably like everyone else's thoughts....how good can these be for THIS price? Well, like a lot of other reviews, these coils have a solid weight to them - identical to the stock coils. My truck feels like it's got a little more snap to it now. Immediately test drove after install and they seem to be doing the trick city driving and at highway speeds. Better pickup now too! If you're on the fence on these they are a solid choice. If things should change with them I will update this posting. Awesome products....thanks!

Full Reviews