Does anyone know what size the metal and rubber hose is for the coolant lines to the stock k04 ? Mine has developed a small leak in that plastic holder on the metal line on the side of the engine. So i want to cut the rusted section out and put on a new rubber line that is longer . I just don't know if I need to buy a 1/4 coolant hose or of I need 5/16 or even 3/8 rubber hose ? Anyone know the size of rubber hose I would need? Thanks

 

I'm 80% sure it's 5/16, I'll try to remember to check tomorrow morning