Is this repairable?

Originally Posted by Jeffblue

So the tireshop was dismounting my tire and the guy doing the job calls me over to tell me that my tire pressure sensor was broken, and shows me that the plastic part had cracked off of the valve stem. he claimed it was already like that, and that it had been taped on by the last tire shop. he said all i had to do was glue it back together and it would be fine. i wasn't really sure what to believe but i was in a rush and didn't want to make a big deal out of it. So, is this repairable?

I planned on using some kind of epoxy or something, so if this is repairable, what would you recommend?