1/8 npt temp gauge

looking for a small screw in 1/8 npt temp gauge, similar to a fuel pressure gauge that you’d see on a fuel rail or tapped into a fitting. does something like this exist? i’m going to make another stop @ Ferry Hydraulics and ask them, but wasn’t sure if anyone had an idea. They make dipsticks for dry sump/oil in the frame dirtbikes and harleys too. just none of them are 1/8npt thread.

http://www.volksworld.com/imageBank/cache/a/April_08_news_08.jpg_e_25db682ee2c870949f0907a5cb2351c8.jpg

It’s going in a 600 series Peterson trash filter and has gear lube running through it, and figured if the port was available why not have a gauge in it for grins.

http://www.petersonfluidsys.com/Photos/refilt.jpg

http://www.stewartwarner.com/Catalog/sdrtemp.html

Any of these?

those are just sending units, I could wire a gauge, but the dash is busy enough as it is.