⚡ Power your GM ride with OEM precision and lasting performance!
The ACDelco GM Original Equipment D521C Ignition Coil is a GM-recommended replacement part engineered with coated windings and corrosion-resistant laminations to ensure durability and reliable ignition performance. Designed to match original factory specifications, it fits a range of GM vehicles from 2011 to 2021 and offers easy installation with screw-in or bolt-on compatibility.
| Brand | ACDelco |
| Item dimensions L x W x H | 17.7 x 5 x 2.1 inches |
| Vehicle Service Type | Car |
| Item Weight | 2.5 Pounds |
| Installation Type | Screw-In or Bolt-On |
| Manufacturer | ACDelco |
| UPC | 707773774731 |
| OEM Part Number | 25195107 |
| Model | GM Original Equipment |
| Item Weight | 2.45 pounds |
| Product Dimensions | 17.7 x 5 x 2.1 inches |
| Country of Origin | Mexico |
| Item model number | D521C |
| Is Discontinued By Manufacturer | Yes |
| Exterior | Coated |
| Manufacturer Part Number | D521C |
E**S
Great purchase Great Value. OEM perfect fit. No issues at all.
Easy to install. Couple bolts and one connection to unplug. Great quality. Purchased for a 2012 Chevy Cruze LT perfect fit.
S**D
Fixed misfire issue.
This is the exact fit I needed and it also fixed the misfire issue for Chevy Cruze .
M**H
2015 Chevy Sonic 1.4T
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.
2**4
Good
2015 Chevy cruze 1.4l
Y**O
Works great!
Got the P0304 code on my 2014 Chevy Sonic after about 80,000 miles, and it happened after I fueled up, started the engine, and noticed the engine was sputtering and the check engine light was on. I did some research and found that this is a misfire on cylinder 4, and that this is usually caused by a faulty coil pack. I got under the hood, removed the pack, and, sure enough, the contacts and springs were corroded and turning green to various degrees. Replaced the spark plugs with OEM AC Delcos and this coil pack, and it's been running smooth since. This appears to be a true OEM part from what I could tell with the branding on the top, as it matched the worn part I removed that was installed when I bought the car new.
S**E
Good product
Worked great no fitting issues or anything else
A**A
Perfect replacement, identical to factory
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!
B**Y
Product as ordered
Easy to install
Trustpilot
1 month ago
1 month ago
