Oil pressure sending unit.

[gashog]

Anyone know the correct thread size for the oil pressure sending unit?
I will probably order both sizes,but inquiring minds want to know.
Thanks.

1/4 in by 18 threads

1/8 in by 27 threads

[75RivGS]

1/4 inch..
did your Centurion came with an oil pressure sending unit or a switch?

Just installed both, by using a T-shaped connector, so I have idiot light and pressure gauge

[gashog]

Thanks.
I just have the idiot lights.
My sending unit is leaking oil.
The only leak I got.:)

I don't like running lines to an oil guage,one small accident,and you lose all your oil on the ground.
Don't ask me how I know.