Coolant overflow hose diameter

[kcdehart]

Was wondering if anyone knows where I can find the diameter of the rubber hose that attaches the radiator cap to the overflow cap?

Mine isn't sealing properly on the overflow cap side. It's A: pushing coolant out onto the top of the cap and B: Not letting the cooling system vacuum coolant back in and is pulling air in instead. I'd replaced my rad a few months ago and it seemed like it solved my issues. But yesterday I very clearly saw where coolant was being pushed out of the hose onto the cap. Which means it'll be drawing in air there, as well.

 

[techno]

The OD is 12mm, the ID is approx 7.5mm. The diameter of the pipe on the overflow cap is 8mm.

 

[kcdehart]

The OD is 12mm, the ID is approx 7.5mm. The diameter of the pipe on the overflow cap is 8mm.

Just what I needed. Thank you!!