ACDelco GM Original Equipment D521C Ignition Coil

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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!

Works perfect took care of the problem had a misfire in cylinder 4 change the spark plugs what's the problem it was the coil pack but I suggest you buy some dielectric oil and you put it on the tips tops of the coil pack would you spark plug and coil meet in so be easier to Pull-A-Part when it's time to change the spark plugs again

El producto llego 1 dia antes de lo que marcaba, en perfecto estado. Funciona perfectamente, deje de tener problemas con mi vehículo.

Buen producto

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