The auto shop I contacted just said I needed to replace the entire TPMS module because my valve stem was broken. The Firestone guy didn't even hear how to fix it. So I bought this kit as it was a lot cheaper than having a mechanic replace the entire TPMS sensor. I'm not very good with cars or repairing/replacing/cleaning/replacing. But I was able to easily replace the valve stem with this kit. It's been on my truck for 2 years now on the same tires and still no problems. No leaks, strong and confident.