I have a very small leak coming from a coolant cap at the front of the engine. It is a small black cap that takes a hex tool to remove. It must have a very small hole inside the hex opening. (thinking someone cracked it while tightening). Does anyone know what this part is called or the part # so I can order a new one?

Thanks, Mark


(if no one knows what I am talking about I will try to get a picture as soon as I can)

 

Thermostat housing cap. NCA2270AC

 

Thanks for the info, that is the exact part I needed.