UF504 Ignition Coils Pack

These sparkplug coils work well and my pickup starts immediatly. The were well made but this installation is not for the beginner. It is difficult to install them in the back of the engine because space is very limited. The design of the coil is good because they can be bent to fit into the spark plug channels. One the coils are started they fit over the spark plugs and make contact with the spark plug. I would buy these spark plug coils again.

Perfect fit for my 2014 Ram 1500 5.7 hemi and is running top notch. This engine is a bear to work on taking 16 spark plugs with 8 of these coils and at times it was tricky to get the new coils to seat all the way on the plugs because you’re coming in from different angles then making it tricky to bolt the coils onto the engine block. The coils themselves are awesome it’s just my truck is hard to work on.

Worked perfectly although it was a pain to put in the plugs due to it being a little small but if you get it at the right angle it fits it took me a good 1-2 hours to install

I will start with I got them installed and the truck runs great for about 2 months and the problem started. Here is my story. If you know anything about installing these on a Ram 1500 with Hemi, then you know. Anyway when installing the new coil packs it was difficult to get the screws in. You have to wiggle the new coil packs and push at the same time to get it in for the screws to catch and be able to tighten. After looking at the new ones and the old ones the rubber tube that goes in to the spark plug, the rubber that is against the actual coil pack is a little thicker making it difficult to get the mounting screw to catch the threads and tighten. But it can be done. By the way this was my first chance at replacing plus and could. Took me about 2 1/2 hours to get it done. Once installed everything was great and truck ran top notch. Now, fast forward 2 months, cylinder 1 misfire. Bought a new one at Autozone for $40. Another month later, misfire cylinder 4. Another new one $40. Two months later misfire on cylinders 2 and 8, $80 more dollars. Now in October, cylinder 3 misfire and another $40. These things are junk and do not last. Now I bought these for $112 and have $200 in replacing them so far and only about 12-15 thousand miles. Spend the money and buy good ones and not this junk unless your looking to trade your truck or sell it soon. Goodluck.

They all fit tight and worked. I would use these coil packs again.

Had miss fire on 3 coil packs, decided to change all 16 plugs and all 8 coil packs. Did it myself, was a real pain in the butt! But my truck runs a lot better now. 2008 Dodge Ram 4x4, 6.5 Hemi, 225,000 miles.

I disliked the bolts it came with them, they have a oring to hold bolts on which just gets it the way. Original parts have a tab to hold them in with is easier in tight areas.

After installing these coil packs my dodge ram 1500 ran ok but after 2 months of running with these coil packs my truck started throwing codes and running rough. The code that came up was P2314. The description of the code is not clear no matter where you look. I reinstalled my old coil packs, so I guess I have to take the loss but I will never order from that company again.