This is an OEM replacement for sensors on a set of PAX tires that we didn't want to cut to remove from the original rims. They appear to be the same size and installed well. However, the OEM system still does not recognize the sensors - they have been programmed or configured according to the instructions, but still do not work. The online instructions are clear enough, but they don't provide any troubleshooting information. We'll see how it goes.