ACDelcoGM Original Equipment D521C Ignition Coil

Perfect numbers match to OEM for 2020 Chevy Trax Premier. Easy install and solid connections to all spark plugs and the electrical connector.

This is the exact fit I needed and it also fixed the misfire issue for Chevy Cruze .

Vehicle was showing a misfire and I could see the spark jumping from the coil to the head. Replaced the coil pack and that solved the problem. I have read about enough vehicles with a similar condition to suggest that you replace the coil pack when changing the spark plugs as preventative maintenance. In this instance the coil pack failed at 10 years 125k miles.

2015 Chevy cruze 1.4l

AC Delco has always made great parts. Over the years using different parts by AC Delco has always proven a great choice.

A little piece broke off. Installed it and it seems to be working otherwise.

If your GM vehicle has a flashing MIL that relates to misfires, this is the part you likely need to replace. Just a few Torx bolts and you'll be back in business, but before you stop there, replace the spark plugs at the same time as they are likely due for replacement as well and this part has to be removed to get at them anyway. Take care when removing the connector as there is an connector lock that must be slid first to avoid damaging the connector retention mechanism.To those confused by AC Delco and Delphi terms, the company that makes this part is named Delphi (it was previously named Delco Electronics when it was part of GM). Additionally, AC Delco is a GM brand for many OEM replacement parts. So this is technically an Delphi produced part with an AC Delco brand label and is the part used when the vehicle was originally produced.

Compared it to the one that I pulled out they are absolutely identical to factory part. Extremely easy to install. In 5 minutes my misfire was gone. I figured it was the coil pack instead of the spark plugs because my friend took it out for me once before and found that one of the springs inside the coil pack was not maintaining its integrity with the spark plug. The misfiring got better once he straightened it out and after a period of time it got a lot worse so when I replaced the coil pack just now, misfires and rough idle are gone! AutoZone wanted a 120 to $160, save yourself a hundred bucks and buy this!