Hi, recently i let my brother do the replacing of the radiator with a new one where he hit the By Pass Pipe and broke it of
now in the picture you see a red circle and i wanted to know the name of that thing there, it is a nut that hold the By Pass Pipe which i tried getting off and broke it.

I need the name of it to order a new one. I went to around town but none of the "professionally" mechanics didn kno the name of it.......
after a huge strugle with the other broken piece still in place i managed to get it out but i need a new one.....
Does anybody know the name of it???
in the pic below you see what i mean , i couldn find the name of it in manuals, the pic is little.....
thanks