Oil Pressure Light Sending Unit Issue

[lalessi1]

This is kinda nit picking, but once a year the sending unit for the oil pressure light starts leaking. I am on the 4th or 5th one from different sources but I think they are all made by the same place. Anybody know of any alternative units? Is anybody seeing the same thing? I am running a plug now and I have a mechanical gauge, but I can't stand when stuff doesn't work.