Bought and installed this kit on my 94 YJ Sahara 4.0 I6. Was impressed with the quality of the plugs, wires and distributor cap. However the rotor that came in this package did not have a back end that secured itself into its place. Not sure if it would’ve still worked or not but I decided to play it safe and got an AC Delco rotor at Autozone for $9 bucks. Everything went smooth with the tuneup and I recommend. Just be aware the rotor included in this kit may not fit your Jeep. Another word to the wise, pick up some dielectric grease and place a little glob in the openings of all the wires when placing them in. All that being said, this product still receives a 5 star rating from me. As a Prime member, I received this in 24 hours despite the two day shipping. After being quoted $650 dollars for a tuneup at my local shop, I decided to take matters into my own hands. A tuneup can seem daunting but it is very easy, and this is coming from a guy who doesn’t turn wrenches at all. There are tons of youtube videos out there to help you along. Good luck with the kit!