Both the oil and water temp sensors seem identical but I'm not going to reuse them as they are very dodge. The sensor sits in a metal housing, whole unit looks similar to pic below:

Issue is the actual sensor that sits in the metal can just be pulled out on BOTH, someone has shoved white sealant in there to stop this but both just pop out, no seal at all.
I am going to get new sensors but will they work with the gauges? I'm under the impression this is not possible with an oil pressure sender but for temp I can imagine it would be ok...
The gauges are asia special cheapos