how big is it??

[fico]

sooo im trying to put in my oil pressure gague sender but i cant get the oilpressure switch off what size socket is that??? like 24? this is on an sr btw

[Rayne]

Best way to find out is test fit different sized sockets.

[ThatGuy]

Go to the parts store and ask for the Oil Pressure Sending Unit Socket. If you think I'm joking, try it.