anyone know what thread size the alternator nut is? i would like to replace mine with the pulleys but i don't want to pay $99 for the SR Motorsports one.

I believe it is a 17mm...

i dont mean what size wrench will i need. i need to know the thread size.

Did you figure it out as I wanna change mine .

Shifty Which nut, the adjustment lock nut or lower nut to secure the alternator .

If nobody answers you can always just remove the nut and venture into home depot. Take the nut and try it on every bolt that looks like it may fit. They usually even have a thing set up with every bolt pointing at you so you can do this. Make sure the nut goes down past the tip of the bolt and then you can be sure its the right thread and pitch. That is... only if nobody responds here.

@fastfreddie61 its the nut holding the alternator pulley on the big beefy one.
@xexok thanks for the suggestion but 2 small issues with that in in the UK and we don't have home depot,s our equivelant is pretty finish also if I take the nut of how do I drive to the store lol

For stuff like this unfortunatly I have to rely on internet stores.

Ah I didn't see where you were from. I figured maybe someone could drive you up to the store, but my suggestion was more of a last option anyway. Seems like any post about thread pitch never gets answered on this forum, I can't find it searching anyway.

Thanks anyway might have the size though a guy from the Mazda rotary club seemed pretty clued up so il see where that gets me and if its right il post the size here.

Shifty, good stuff, I searched and asked around, but to no avail . Sorry mate.