Can anyone tell me what's the right size 90 ° fitting to point my temp sensor for fans (in pass side head) down so it dosent make contact with hedder and burn sensor wire

 

If you're referring to the threads, they're 3/8" pipe.

Not the most popular size in the plumbing world. Might be easier if you can find a switch with a more common thread such as ¼" pipe, and put a bushing in the head to adapt to that. That might open up more options in a more common size.

 

so what you're saying is that the threads in the block are three eights pipe? And put a bushing into downsize too quarter inch. I'm pretty sure somebody in here mentioned that they put an elbow in to move switch. In your experience quarter inch switches are more common? Thanks for the reply

 

So this would work if I understand correctly?

 

I have no idea whether ¼" switches are common or not. But fittings in that size are. Finding such a switch would make fittings far easier to source.

That Amazon one would work, if all you need is to point the switch in a different direction. It's steel though; it will rust in place without mercy. Brass would be MUCH better. E.g. https://www.lowes.com/pd/B-K-3-8-in-...ing/1000505721

 

Thank you as you know bouncing ideas off of other people help tremendously I appreciate your input

 

Another option is to suspend a thin piece of sheet metal in the air between the header and the sensor. The thinner the better as long as it is structurally sufficient, that's what makes a heat shield work better.