Hi does anyone know the internal diameter of the engine coolant upper hoses
I have the aluminum pipe kit fitted but would like to fit new silicon ones
Tks

 

Yes it’s good to covert from plastic to metal. However it’s important to know the causes of deterioration. Running your car at a standstill for long periods of time. Running car in traffic when heat index is over 100. Although, these are preventive not necessarily the cause. Cars run hot and keeping in mind elevated temperature's. Keeping an eye and coolant flushes do help. Anything that uses oil based fluids need to be changed frequently to operate in the optimum. The oil is critical, coolant, drive line AWD, brakes, transmission, spark plugs are routine and often required.