318 pulley mistake, need the correct size.

You could sort through the data on this site to prevent buying the wrong parts again. I checked a few listings and the ID/OD is provided.
Products: Pulleys - Bouchillon Performance Engineering
Thank you, but I still need to find the correct water pump pulley size for a factory ac car. I will need to look for used parts, these new ones cost a lot of ca$h.