Plastic drain petcock on radiator help!

Issue resolved, thanks to your help! I went out to the garage this morning, and popped the petcock out with pliers and a small flat screwdriver. It wasn't broken, just got spun in the seat in the radiator. I cleaned it, and put it back in at the correct position and it sealed right up. I didn't even have to spend the $4 on a new one! Thanks again.:)