Do all oil pan drain plugs take the same size wrench? If so, what? If not, are there many possibilities?

No not at all. If you have a 1/2, 9/16 and 5/8, standard size box end wrenches along with 14mm, 15,mm and 16mm you'll have most of them covered.





Large HD trucks, tractors and heavy equipment is another story.





You'd better plan on continuing your set on up to 1'; and metric sizes on up to 25mm.Do all oil pan drain plugs take the same size wrench? If so, what? If not, are there many possibilities?
Probably a dozen possibilities, metric and SAE. 15mm may be the most common I have seen lately.Do all oil pan drain plugs take the same size wrench? If so, what? If not, are there many possibilities?
for cars there are 6 common sizes 3 standard 3 metric so 6 wrenches or sockets should cover most models
Every engine has a different size drain plug. They usually range from 13mm to 17 mm.





Rick





I'm a retired ASE Master/L-1 Technician. I still keep current with the latest automotive technology. Visit my blog for cool articles and TSB's: http://free-auto-repair-advice.blogspot.鈥?/a>
NO they are all different. My Civic and Audi are 17mm and 19mm (I forget which is which).





But in general they are big enough to let the oil drain fast. Just make sure you use the correct size so you don't strip the head.








Good Luck
KD makes a magnetic kit that covers the most common sizes, but it once and it will cover many vehicles in your life


The KD # is 3870
Try 17 mm, go up or down from there.
1/2';


9/16';


15mm





Those are the most common.