I have an 03 g35 coupe and somehow the pulley ware a hole one of my hoses. The problem is I don't know what exactly what it is or a part number. It runs from the radiator to the bottom driver side of the engine next to the lower radiator hose and under the air box. I thought it might be the oil cooler line transmission line but I'm not sure. Can anyone help me out? Thanks

 

That line is part of the A/C system

 

Start here bro. https://www.orderinfinitiparts.com/p...iagram=3840050 It looks like an AC line. Good luck!