So I was told I have a coolant leak and need to replace the thermostat housing and all of its gaskets. But when I look under the hood I can identify exactly where the leak is coming from. My question is could I get away with just replacing the hose that has sprouted the leak (if that’s even possible) or would I have tor replace the whole unit ?

Here’s a video to show exactly what I am referring to:

https://www.veed.io/view/d6305616-d968-42bb-abae-513b6cf1ec23?panel=share