HEATED OXYGEN SENSOR Special Flare Nut Socket

Anyone know more or less what the exact size (8, 10, 14mm etc.) of the special flare nut socket used for oxygen sensors removal and installation on a 2016 4Runner?

I've searched here on the forum but come up with nothing.

If anyone has any info about the exact size flare nut socket used please either post about it here or send me a PM with the info.

Thanks in advance.

 

I was under the impression that it's either a 22mm or 24mm. They also make o2 sensor sockets that allow the wiring to slip through. Other than that, you can use just a regular box or open end wrench.

 

I think its 7/8 inch...not sure what the metric is 22 MM ?

I did a T4R V8 used the box wrench but you may need the special O2 sensor sockets depends on how to get at it.. I purchased several different styles..

 

Thanks for your replies fella's!