🔥 Enhance Performance with ACDelco GM Original Equipment D593A Ignition Coil Review

Works great on my 2004 Cadillac Deville. I was able to replace just one side and reuse good boots from that side to replace the opposite side.

Installed and fixed my 05 STS easily. The price was part of the retailer's expenses. OEM quality at an aftermarket price. I would recommend this to friends and family.

Good price. Newer design (note the different cable connections in my picture). Fixed my misfire problem. Install both banks. The front can is much easier to install than the rear one.

Decided to buy them and install them myself rather than pay the store a ridiculous amount of dollars. I had no experience with cars, but in my 2005 Deville it ran smoothly with no problems. while it works fine.

These new coils were purchased from another auction along with another set for the remaining cylinders and ACDelco OEM spark plugs. The car idles so smoothly that I'm not sure if the engine is running or not. Acceleration is awesome! Two thumbs up!

They were needed as a last resort - was surprised to see that GM requires you to buy a whole page of motor coil packs at once, but it's true from what I've read when I first started buying them individually to replace time, others were not far behind. It was about 20 percent cheaper than my local dealer.

This is the perfect Delco air conditioning replacement. Wiring and connectors have been improved and updated. The bushings on each coil are vented to keep hot air past the coils. This is a significant improvement over the OE bobbin bushings. The original wiring harness was overheated, dried out and brittle. The car drives better than in recent years.