Oxygen sensor thread size

[plinker]

What is the thread pitch on the O2 sensor ('89 ranger 2.9L)? I'm buying a new one and would like to chase the threads and found this, http://http://www.tooltopia.com/lisle-12230.aspx

Will this work?

Thanks

 

[Yellowsplash]

A Spark plug thread chaser should work...

 

[trish]

18mm x 1.50 thread pitch for your oxygen sensor, same as the larger spark plugs used in older engines. If you've already got an 18mm plug tap, you're all set.