What's this?
 

What's the name of the sensor on the drivers side head on the front right behind the power steering reservoir? I snapped the plastic piece off when pulling my head =[

Coolant temperature sensor.

Thought so....So what do I do now haha. Just buy a new 1 I assume? It looks like it would be a bitch to unscrew....seems like it is almost molded into the block. I have the motor out of the car so it won't be horrible....but yea. Just replace with a factory one?