HI, i have a 87 s4. Planning to install aftermarket water temp sensor in where the old sensor beside the oil pressure, but the old sensor is smaller thread. Is there an adapter from the m8x0.75 to npt 1/8?

 

The answer is yes, but the challenge is finding the place to get one.

Around here we have a local small chain store called McFadden Dale's where they specialize in things like that. You take your part to the counter and say you need something to make this fit into that and I have this much room to work with.

I suggest you contact your local Hot Rod shop or other place that does automotive fabrication and ask directing to the like place for Toronto.