Coolant Leak at Lower Radiator Hose Temp Sensor

[Fifty150hs]

I have a 2006 3.0i. I discovered I have a small leak that appears to be coming from the temp sensor on the lower radiator hose. After looking on line at the part it looks like it can be removed and it has an O ring. I suspect the O ring has hardened. It looks like it can just be removed, a new O ring installed and the sensor reinstalled. Anyone have to do this? Were you successful or did the sensor plastic break or fall apart? I had that happen with the trans cooler thermostat.

If it's a part that's likely to break I'd rather just go ahead and order a new one as if it breaks my car will be down until I can get a new one and I need it for work. I don't know if the hose has ever been replaced as the records are incomplete. The hose looks and feels in good shape. If I go ahead and order the sensor I'll probably order a new hose as well.

Thanks in advance!