external thermostat saver?
 

Anybody familiar with the external thermostat saver. While attempting to remove an oil line to the thermastat, i stripped the thermastat threads. I am figuring if I have to replace the thermastat and unscrew the other 3 oil lines that I am going to damage oil lines too. The lines are definitely frozen tight. I am hoping that this external thermostat saver may do the trick and hopefully the external thermostat can stay. Any suggestions?

Thanks. I think I am living the line, "one step forward and two steps back."