I have a 2003 2.3L ranger, does anyone know for sure if it has a 12mm or a 14mm drain plug? I want to get a fumoto drain valve and would rather not remove the stock plug to check due to the fact the I run duel by-pass filters and am not required to drain the oil. I would rather drain it once or at least a little bit of it to switch the plugs once without having to have the plug out to measure the threads while I loose all my oil.

 

13mm drain plug

 

For my year, 2003, everything I find states that it has either a 12mm or a 14mm plug. Where are you getting 13mm from?