sensor atachment?

[fax0815]

I´m going to fit my defi gauges soon, but I still need the sensor attachments.

Unfortunatly I cant´t be in my garage until then. That´s why I need your help. I´ve searched, but somehow noone asked before?

What´s the inner diameter of the radiator hose?

I was thinking about ditching the OEM sensor and fit the defi with adapter.
Defis run with 1/8PT, but whats the thread in my block?
I´ve read Toyota pressure senders have 1/8 BSP? is that true?

Anyones knows where to get this adapter?

Thanks