Oil Pressure Test Port Thread Size

[Mudball]

Im waiting on a few parts for my L245F. So I thought I would go ahead and check the oil pressure just for piece of mind in the meantime.
Can someone tell me the correct thread size for that test hole next to the starter ?
Thanks

 

[North Idaho Wolfman]

It's either 1/8" or 1/4" BSTP (British Standard Pipe Taper).
You will need to get a BSTP to NPT (National Pipe Thread) adapter or Just get a cheap oil pressure gauge that has the BSPT adapter in it.

 

[Mudball]

Ok thanks for the help.
I tried something from Lowes but it didnt work.
I thought the thread size might be M10 x 1.0 but not sure.
Im going to keep trying and will post back the results.
It's either 1/8" or 1/4" BSTP (British Standard Pipe Taper)
Thats interesting N Idaho Wolfman.
Thanks