OEM filters for my 2008 6.4l. Came well packed, had o-rings and some included documentation. Plenty of videos online showing how to change them out. The secondary one in the engine bay literally take 5 minutes max. The primary one under the rail on the drivers side takes a little longer since its under the car. You have to pop a plastic clip to move a wire out of the way so you have enough clearance. I would also recommend using an extension on your rachet so you have a little more space. Without the extension it is slow going. Haven't figured out how to reduce the amount of desiel that spills out. Even after draining for 30 seconds when removed a decent amount (.25 gallon) comes out during the process. Helps to have two decent size buckets to ensure you're collecting as much as possible. I also turn the key for 30 seconds 6 times to run the fuel pump after changing each filter. Takes a little longer since you have to do it twice but never had an issue. Also, price was great.